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Don't see what you need? Contact us. We have many more tubes that are not yet listed. We also have new and good used tubes in most other numbers including preoctal, globe/balloon, octal, loctal, miniature, subminiature, metal, power, transmitter tubes and many more.

MDB Ventures Audio Tubes
Qty
Avail		Tube
Type 		Price
Each 		Tube
Brand 		Emission
Strength 		Mutual
Conduct
Desc
Notes
1 6AB4 / EC92 $5.00 Tungsram 70% 3000 / 4000Gm used (wb) (M7) smooth gray plate
1 6AB4 / EC92 $25.00 Mullard 110% 4000 / 4000Gm NOS (OB) (M7) gray plate - England
1 6AB4 / EC92 $15.00 Valvo 130% 4800 / 4000Gm NOS (OB) (M7) gray plate - damaged box
1 6AB4 / EC92 $15.00 Tung-Sol 130% 4500 / 4000Gm NOS (OB) (M7) gray plate
1 6AB4 / EC92 $15.00 Tung-Sol 130% 4400 / 4000Gm NOS (OB) (M7) gray plate
1 6AB4 $20.00 Tung-Sol 110% 3800 / 4000Gm NOS (OB) (M7) black plate
1 6AB4 $15.00 Tung-Sol 120% 4200 / 4000Gm NOS (OB) (M7) gray plate
1 6AB4 $15.00 Tung-Sol 120% 4300 / 4000Gm NOS (OB) (M7) gray plate
1 6AB4 $15.00 Tung-Sol 140% 4500 / 4000Gm NOS (OB) (M7) gray plate
1 6AB4 $10.00 Tung-Sol 140% 5100 / 4000Gm used (OB) (M7) gray plate
1 6AB4 $15.00 Amperex 120% 4700 / 4000Gm NOS (OB) (M7) gray plate
1 6AB4 / 6664 $12.00 Sylvania 150% 6000 / 4000Gm NOS (OB) (M7) black plate - yellow
1 6AB4 / 6664 $12.00 Sylvania 130% 5000 / 4000Gm NOS (OB) (M7) black plate - yellow
1 6AB4 / 6664 $12.00 Sylvania 140% 5800 / 4000Gm NOS (OB) (M7) black plate - yellow
1 6AB4 / 6664 $12.00 Sylvania 140% 5400 / 4000Gm NOS (OB) (M7) black plate - yellow
1 6AB4 $12.00 Sylvania 110% 4400 / 4000Gm NOS (OB) (M7) black plate - green
1 6AB4 $7.50 Philco 130% 4800 / 4000Gm NOS (OB) (M7) black plate
1 6AB4 $6.00 Sylvania 110% 4400 / 4000Gm NOS (OB) (M7) black plate - yellow
1 6AB4 $6.00 Sylvania 120% 4800 / 4000Gm NOS (OB) (M7) black plate - yellow
1 6AB4 $6.00 Sylvania 130% 4800 / 4000Gm NOS (OB) (M7) black plate - yellow
1 6AB4 $6.00 Sylvania 110% 4500 / 4000Gm NOS (OB) (M7) black plate - yellow
1 6AB4 $6.00 Sylvania 110% 4200 / 4000Gm NOS (OB) (M7) black plate - yellow
1 6AB4 $6.00 Sylvania 110% 4700 / 4000Gm NOS (OB) (M7) black plate - yellow
1 6AB4 $6.00 Sylvania 120% 4500 / 4000Gm NOS (OB) (M7) black plate - yellow
1 6AB4 $6.00 Sylvania 115% 4600 / 4000Gm NOS (OB) (M7) black plate - yellow
1 6AB4 $6.00 Sylvania 110% 4400 / 4000Gm NOS (OB) (M7) black plate - yellow
1 6AB4 $6.00 Sylvania 120% 4600 / 4000Gm NOS (OB) (M7) black plate - yellow
1 6AB4 $6.00 Sylvania 130% 4800 / 4000Gm NOS (OB) (M7) black plate - yellow
1 6AB4 $6.00 Sylvania 110% 4300 / 4000Gm NOS (OB) (M7) black plate - yellow
1 6AB4 $6.00 Sylvania 150% 5200 / 4000Gm NOS (OB) (M7) black plate - yellow
1 6AB4 $6.00 Sylvania 115% 4500 / 4000Gm NOS (OB) (M7) black plate - yellow
1 6AB4 $6.00 Sylvania 115% 5200 / 4000Gm NOS (OB) (M7) black plate - yellow
1 6AB4 $6.00 Sylvania 110% 4300 / 4000Gm NOS (OB) (M7) black plate - yellow
1 6AB4 $6.00 Sylvania 130% 4800 / 4000Gm NOS (OB) (M7) black plate - red
1 6AB4 $6.00 Sylvania 130% 5200 / 4000Gm NOS (OB) (M7) black plate - red
1 6AB4 $6.00 Sylvania 140% 5400 / 4000Gm NOS (OB) (M7) black plate - red
1 6AB4 $6.00 Raytheon 110% 4600 / 4000Gm NOS (OB) (M7) gray plate
1 6AB4 $6.00 Raytheon 130% 4800 / 4000Gm NOS (OB) (M7) gray plate
1 6AB4 $6.00 Raytheon 130% 4700 / 4000Gm NOS (OB) (M7) gray plate
1 6AB4 $6.00 Raytheon 110% 4200 / 4000Gm NOS (OB) (M7) gray plate
1 6AB4 $6.00 Raytheon 110% 4800 / 4000Gm NOS (OB) (M7) gray plate
1 6AB4 $6.00 Raytheon 120% 4200 / 4000Gm NOS (OB) (M7) gray plate
1 6AB4 $6.00 Raytheon 110% 4600 / 4000Gm NOS (OB) (M7) gray plate
1 6AB4 $6.00 GE 150% 5800 / 4000Gm NOS (OB) (M7) gray plate
1 6AB4 $6.00 GE 150% 5800 / 4000Gm NOS (OB) (M7) gray plate
1 6AB4 $6.00 GE 120% 4300 / 4000Gm NOS (OB) (M7) gray plate
1 6AB4 $6.00 GE 120% 4500 / 4000Gm NOS (OB) (M7) gray plate
1 6AB4 $6.00 GE 120% 4500 / 4000Gm NOS (OB) (M7) gray plate
1 6AB4 $6.00 GE 110% 4800 / 4000Gm NOS (OB) (M7) gray plate
1 6AB4 $6.00 GE 120% 4400 / 4000Gm NOS (OB) (M7) gray plate
1 6AB4 $6.00 GE 140% 5000 / 4000Gm NOS (OB) (M7) gray plate
1 6AB4 $6.00 GE 110% 4500 / 4000Gm NOS (OB) (M7) gray plate
1 6AB4 $6.00 GE 110% 4200 / 4000Gm NOS (OB) (M7) gray plate
1 6AB4 $6.00 RCA 110% 4000 / 4000Gm NOS (OB) (M7) gray plate - white lettering
1 6AB4 $6.00 RCA 130% 5500 / 4000Gm NOS (OB) (M7) gray plate - white lettering
1 6AB4 $6.00 RCA 150% 5400 / 4000Gm NOS (OB) (M7) gray plate - white lettering
1 6AB4 $6.00 RCA 130% 4600 / 4000Gm NOS (OB) (M7) gray plate - white lettering
1 6AB4 $7.50 RCA 110% 4200 / 4000Gm NOS (OB) (M7) black plate - white lettering
1 6AB4 $7.50 RCA 120% 4800 / 4000Gm NOS (OB) (M7) black plate - white lettering
1 6AB4 $7.50 RCA 120% 4200 / 4000Gm NOS (OB) (M7) black plate - red lettering
1 6AB4 $7.50 RCA 110% 4200 / 4000Gm NOS (OB) (M7) black plate - red lettering
1 6AB4 $7.50 RCA 130% 4500 / 4000Gm NOS (OB) (M7) black plate - red lettering
1 6AB4 $7.50 RCA 140% 5000 / 4000Gm NOS (OB) (M7) black plate - red lettering
1 6AB4 $7.50 RCA 120% 4400 / 4000Gm NOS (OB) (M7) black plate - red lettering
1 6AB4 $6.00 RCA 120% 4400 / 4000Gm NOS (OB) (M7) gray plate - red lettering
1 6AB4 $6.00 RCA 120% 4500 / 4000Gm NOS (OB) (M7) gray plate - red lettering
1 6AB4 $6.00 RCA 125% 4500 / 4000Gm NOS (OB) (M7) gray plate - red lettering
1 6AB4 $6.00 RCA 120% 4200 / 4000Gm NOS (OB) (M7) gray plate - red lettering
1 6AB4 $6.00 RCA 120% 4500 / 4000Gm NOS (OB) (M7) gray plate - red lettering
1 6AB4 $6.00 RCA 125% 4500 / 4000Gm NOS (OB) (M7) gray plate - red lettering
1 6AB4 $6.00 RCA 120% 4300 / 4000Gm NOS (OB) (M7) gray plate - red lettering
1 6AB4 $6.00 RCA 125% 4600 / 4000Gm NOS (OB) (M7) gray plate - red lettering
1 6AB4 $6.00 RCA 115% 4500 / 4000Gm NOS (OB) (M7) gray plate - red lettering
1 6AB4 $6.00 RCA 100% 4000 / 4000Gm NOS (OB) (M7) gray plate - red lettering
1 6AB4 $5.00 Westinghouse 120% 4200 / 4000Gm NOS (OB) (M7) gray plate
1 6AB4 $5.00 Westinghouse 110% 4100 / 4000Gm NOS (OB) (M7) gray plate
1 6AB4 $5.00 Westinghouse 110% 4200 / 4000Gm NOS (OB) (M7) gray plate
1 6AB4 $5.00 Westinghouse 120% 4500 / 4000Gm NOS (OB) (M7) gray plate
1 6AB4 $5.00 CBS 140% 4800 / 4000Gm NOS (OB) (M7) gray plate
1 6AB4 $5.00 Rad-Tel 120% 4500 / 4000Gm NOS (OB) (M7) gray plate
1 6AB4 $5.00 Motorola 115% 4200 / 4000Gm NOS (OB) (M7) gray plate
1 6AB4 $5.00 Motorola 115% 4100 / 4000Gm NOS (OB) (M7) gray plate
1 6AB4 $5.00 Motorola 110% 3900 / 4000Gm NOS (OB) (M7) gray plate
1 6AB4 $5.00 Motorola 110% 4000 / 4000Gm NOS (OB) (M7) gray plate - water damaged box
1 6AB4 $5.00 Motorola 120% 4400 / 4000Gm NOS (OB) (M7) black plate
1 6AB4 $5.00 Motorola 140% 5000 / 4000Gm NOS (OB) (M7) black plate
1 6AB4 $5.00 Motorola 115% 4200 / 4000Gm NOS (OB) (M7) black plate
1 6AB4 $5.00 Magnavox 125% 5300 / 4000Gm NOS (OB) (M7) black plate
1 6AB4 $5.00 Magnavox 125% 5900 / 4000Gm NOS (OB) (M7) black plate
1 6AB4 $2.50 RCA 100% 4000 / 4000Gm used (rb) (M7) gray plate - red
1 6AB4 $2.50 RCA 130% 4800 / 4000Gm used (rb) (M7) gray plate - red
1 6AB4 $2.50 RCA 105% 4000 / 4000Gm used (rb) (M7) gray plate - red
1 6AB4 $2.50 RCA 100% 3700 / 4000Gm used (rb) (M7) gray plate - red
1 6AB4 $2.50 RCA 110% 4200 / 4000Gm used (rb) (M7) gray plate - white
1 6AB4 $2.50 RCA 100% 4000 / 4000Gm used (rb) (M7) gray plate - white
1 6AB4 $2.50 RCA 130% 4700 / 4000Gm used (rb) (M7) black plate - white
1 6AB4 $2.50 RCA 100% 4000 / 4000Gm used (rb) (M7) black plate - white
1 6AB4 $2.50 RCA 100% 4000 / 4000Gm used (rb) (M7) black plate - red
1 6AB4 $2.50 RCA 100% 3800 / 4000Gm used (rb) (M7) black plate - red
1 6AB4 $2.50 RCA 100% 3800 / 4000Gm used (rb) (M7) black plate - red
1 6AB4 $2.50 RCA 110% 4300 / 4000Gm used (rb) (M7) black plate - red
1 6AB4 $2.50 GE 110% 4000 / 4000Gm used (rb) (M7) gray plate
1 6AB4 $2.50 GE 100% 3600 / 4000Gm used (rb) (M7) gray plate
1 6AB4 $2.50 GE 100% 3900 / 4000Gm used (rb (M7) gray plate
1 6AB4 $2.50 GE 100% 3800 / 4000Gm used (rb) (M7) gray plate
1 6AB4 $2.50 GE 120% 4600 / 4000Gm used (rb) (M7) gray plate
1 6AB4 $2.50 GE 110% 4200 / 4000Gm used (rb) (M7) gray plate
1 6AB4 $2.50 Curtis Mathis 120% 5400 / 4000Gm used (rb) (M7) black plate - torn box flap
1 6AB4 $2.50 Tung-Sol 120% 4400 / 4000Gm used (rb) (M7) gray plate
1 6AB4 $2.50 CBS / Hytron 105% 4500 / 4000Gm used (rb) (M7) black plate
1 6AB4 $2.50 Westinghouse 100% 3800 / 4000Gm used (rb) (M7) gray plate
1 6AB4 $2.50 Westinghouse 100% 3800 / 4000Gm used (rb) (M7) gray plate
1 6AB4 $2.50 Delta 105% 4200 / 4000Gm used (rb) (M7) black plate
1 6AB4 $2.50 Delta 100% 4200 / 4000Gm used (rb) (M7) gray plate
1 6AB4 $2.50 HiLite 115% 4300 / 4000Gm used (rb) (M7) gray plate
1 6AB4 $2.50 Motorola 110% 4300 / 4000Gm used (OB) (M7) gray plate
1 6AB4 $2.50 Motorola 110% 3800 / 4000Gm used (OB) (M7) gray plate
1 6AB4 $2.50 Motorola 100% 3800 / 4000Gm used (OB) (M7) gray plate
1 6AB4 $2.50 Motorola 105% 4100 / 4000Gm used (OB) (M7) gray plate
1 6AB4 $2.50 Motorola 100% 3800 / 4000Gm used (OB) (M7) gray plate
1 6AB4 $2.50 Motorola 100% 3800 / 4000Gm used (OB) (M7) gray plate
1 6AB4 $2.50 Motorola 110% 3800 / 4000Gm used (OB) (M7) gray plate
1 6AB4 $2.50 Motorola 110% 3800 / 4000Gm used (OB) (M7) gray plate
1 6AB4 $2.50 Motorola 100% 4000 / 4000Gm used (OB) (M7) gray plate
1 6AB4 $2.50 Motorola 100% 4100 / 4000Gm used (OB) (M7) gray plate
1 6AB4 $2.50 Motorola 110% 3800 / 4000Gm used (OB) (M7) gray plate
1 6AB4 $2.50 Motorola 100% 4000 / 4000Gm used (OB) (M7) gray plate
1 6AB4 $2.50 Motorola 100% 3800 / 4000Gm used (OB) (M7) black plate
1 6AB4 $2.50 Motorola 100% 3700 / 4000Gm used (OB) (M7) black plate
1 6AB4 $2.50 Motorola 100% 3700 / 4000Gm used (OB) (M7) black plate
1 6AB4 $2.50 Motorola 110% 4200 / 4000Gm used (OB) (M7) black plate
1 6AB4 $2.50 Motorola 115% 4100 / 4000Gm used (OB) (M7) black plate
1 6AB4 $2.00 GE 95% 3600 / 4000Gm used (rb) (M7) gray plate
1 6AB4 $2.00 GE 90% 3500 / 4000Gm used (rb) (M7) gray plate
1 6AB4 $2.00 GE 90% 3800 / 4000Gm used (rb) (M7) gray plate
1 6AB4 $2.00 Raytheon 95% 3600 / 4000Gm used (rb) (M7) gray plate
1 6AB4 $2.00 Delco 90% 3500 / 4000Gm used (rb) (M7) black plate
1 6AB4 $2.00 Delco 90% 3500 / 4000Gm used (rb) (M7) gray plate
1 6AB4 $2.00 Concert Master 90% 3500 / 4000Gm used (rb) (M7) black plate
1 6AB4 $2.00 Motorola 90% 3800 / 4000Gm used (rb) (M7) gray plate
1 6AB4 $2.00 Motorola 90% 3300 / 4000Gm used (rb) (M7) gray plate
1 6AB4 $2.00 Motorola 95% 3600 / 4000Gm used (rb) (M7) gray plate
1 6AB4 $2.00 Motorola 90% 3800 / 4000Gm used (rb) (M7) gray plate
1 6AB4 $2.00 Motorola 90% 3800 / 4000Gm used (rb) (M7) gray plate
1 6AB4 $2.00 Motorola 95% 3600 / 4000Gm used (rb) (M7) gray plate
1 6AB4 $2.00 Motorola 90% 3600 / 4000Gm used (rb) (M7) gray plate
1 6AB4 $2.00 Motorola 90% 3600 / 4000Gm used (rb) (M7) gray plate
1 6AB4 $2.00 Motorola 90% 3700 / 4000Gm used (rb) (M7) gray plate
1 6AB4 $2.00 Motorola 90% 3800 / 4000Gm used (rb) (M7) gray plate
1 6AB4 $2.00 Motorola 95% 3500 / 4000Gm used (rb) (M7) gray plate
1 6AB4 $2.00 Motorola 90% 3800 / 4000Gm used (rb) (M7) gray plate
1 6AB4 $2.00 Motorola 90% 3000 / 4000Gm used (rb) (M7) gray plate
1 6AB4 $2.00 Motorola 90% 3600 / 4000Gm used (rb) (M7) black plate
1 6AB4 $2.00 Motorola 90% 3500 / 4000Gm used (rb) (M7) black plate
1 6AB4 $2.00 Motorola 90% 3500 / 4000Gm used (rb) (M7) black plate
1 6AB4 $2.00 Motorola 90% 3800 / 4000Gm used (rb) (M7) black plate
1 6AB4 $2.00 Motorola 90% 3600 / 4000Gm used (rb) (M7) black plate
1 6AB4 $2.00 Motorola 90% 3400 / 4000Gm used (rb) (M7) black plate
1 6AB4 $2.00 Motorola 90% 4000 / 4000Gm used (rb) (M7) black plate
1 6AB4 $2.00 Motorola 90% 4500 / 4000Gm used (rb) (M7) black plate
1 6AB4 $2.00 GE 90% 3800 / 4000Gm used (rb) (M7) gray plate
1 6AB4 $2.00 GE 90% 3600 / 4000Gm used (rb) (M7) gray plate
1 6AB4 $2.00 GE 90% 3500 / 4000Gm used (rb) (M7) gray plate
1 6AB4 $2.00 GE 95% 3800 / 4000Gm used (rb) (M7) gray plate
1 6100 $6.00 Lansdale 120% 2450 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate
1 6100 $6.00 Lansdale 120% 2600 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate
1 6100 $6.00 Lansdale 120% 2400 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate
1 6100 $6.00 Lansdale 115% 2400 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate
1 6100 $6.00 Lansdale 120% 2600 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate
1 6100 $6.00 Lansdale 120% 2500 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate
1 6100 $6.00 Lansdale 120% 2500 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate
1 6100 $6.00 Lansdale 120% 2500 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate
1 6100 $6.00 Lansdale 120% 2400 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate
1 6100 $6.00 Lansdale 120% 2600 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate
1 6100 $6.00 Lansdale 110% 2400 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate
1 6100 $10.00 GE 120% 2600 / 2200Gm NOS (OB) (M7) square gray plate - red lettering - tripple mica - 5 star
1 6100 $10.00 GE 110% 2550 / 2200Gm NOS (OB) (M7) square gray plate - red lettering - tripple mica - 5 star
1 6100 $10.00 GE 120% 2800 / 2200Gm NOS (OB) (M7) square gray plate - red lettering - tripple mica - 5 star
1 6100 $10.00 GE 130% 2800 / 2200Gm NOS (OB) (M7) square gray plate - red lettering - tripple mica - 5 star
1 6100 / 6C4WA $10.00 GE 110% 2400 / 2200Gm NOS (OB) (M7) square black plate - white lettering - tripple mica
1 6100 / 6C4WA $10.00 GE 110% 2300 / 2200Gm NOS (OB) (M7) square black plate - white lettering - tripple mica - torn box flap
1 6100 / 6C4WA $10.00 GE 120% 2500 / 2200Gm NOS (OB) (M7) square black plate - white lettering - tripple mica
1 6100 / 6C4WA $10.00 GE 120% 2500 / 2200Gm NOS (OB) (M7) square black plate - white lettering - tripple mica
1 6C4WA $10.00 Sylvania 110% 2600 / 2200Gm NOS (OB) (M7) square gray plate - yellow lettering - tripple mica
1 6C4WA $10.00 Sylvania 110% 2500 / 2200Gm NOS (OB) (M7) square gray plate - yellow lettering - tripple mica
1 6C4WA $10.00 Sylvania 110% 2400 / 2200Gm NOS (OB) (M7) square gray plate - yellow lettering - tripple mica
1 6C4WA $10.00 Sylvania 110% 2500 / 2200Gm NOS (OB) (M7) square gray plate - green lettering - tripple mica
1 6C4WA $10.00 Sylvania 120% 2550 / 2200Gm NOS (wb) (M7) square gray plate - green lettering - tripple mica - JAN
1 6C4WA $10.00 Sylvania 130% 2800 / 2200Gm NOS (OB) (M7) square gray plate - green lettering - tripple mica - JAN - torn box flap
1 6C4WA $10.00 Sylvania 120% 2600 / 2200Gm NOS (OB) (M7) square gray plate - green lettering - tripple mica
1 6C4WA $10.00 GE 120% 2400 / 2200Gm NOS (OB) (M7) square gray plate - white lettering - tripple mica
1 6C4 $10.00 Philco 120% 2600 / 2200Gm NOS (OB) (M7) square gray plate - tripple mica
1 6C4WA $12.00 Raytheon 120% 2650 / 2200Gm NOS (OB) (M7) small flat black plate
1 6C4 $7.50 Tung-Sol 110% 2400 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate
1 6C4 $7.50 Tung-Sol 110% 2500 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate
1 6C4 $7.50 Tung-Sol 115% 2400 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate
1 6C4 $7.50 Tung-Sol 130% 2700 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate
1 6C4 $7.50 Tung-Sol 120% 2700 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate
1 6C4WA $6.00 GE 120% 2600 / 2200Gm NOS (OB) (M7) square gray plate - green lettering - JAN
1 6C4WA $6.00 GE 110% 2400 / 2200Gm NOS (OB) (M7) square gray plate - green lettering - JAN
1 6C4WA $6.00 GE 110% 2500 / 2200Gm NOS (OB) (M7) square gray plate - green lettering - JAN
1 6C4WA $6.00 Sylvania 120% 2600 / 2200Gm NOS (wb) (M7) square gray plate - green lettering
1 6C4 $6.00 RCA untested sealed in box NOS (OB) (M7) JAN - US Navy
1 6C4 $6.00 RCA 115% 2500 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - red lettering
1 6C4 $6.00 RCA 120% 2350 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - red lettering
1 6C4 $6.00 RCA 110% 2600 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - red lettering
1 6C4 $6.00 RCA 120% 2500 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - red lettering - worn box
1 6C4 $6.00 RCA 115% 2700 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - red lettering
1 6C4 $6.00 RCA 120% 2700 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - red lettering
1 6C4 $6.00 RCA 115% 2500 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - red lettering
1 6C4 $6.00 RCA 110% 2600 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - red lettering
1 6C4 $6.00 RCA 120% 2700 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - red lettering - worn box
1 6C4 $6.00 RCA 120% 2600 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - red lettering
1 6C4 $6.00 RCA 125% 2600 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - red lettering
1 6C4 $6.00 RCA 120% 2500 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - red lettering
1 6C4 $6.00 RCA 125% 2500 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - red lettering - worn box
1 6C4 $6.00 RCA 115% 2400 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - red lettering
1 6C4 $6.00 RCA 115% 2600 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - red lettering
1 6C4 $6.00 RCA 120% 2600 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - red lettering - worn box
1 6C4 $6.00 RCA 120% 2700 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - red lettering
1 6C4 $6.00 RCA 120% 2600 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - red lettering
1 6C4 $6.00 RCA 120% 2600 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - white lettering
1 6C4 $6.00 RCA 130% 2850 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - white lettering
1 6C4 $6.00 RCA 120% 2800 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - white lettering - worn box
1 6C4 $6.00 RCA 120% 2800 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - white lettering
1 6C4 $6.00 RCA 120% 2800 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - white lettering
1 6C4 $6.00 RCA 120% 2650 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - white lettering
1 6C4 $6.00 RCA 110% 2400 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - white lettering
1 6C4 $6.00 RCA 130% 2800 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - white lettering
1 6C4 $6.00 RCA 125% 2600 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - white lettering
1 6C4 $6.00 RCA 120% 2500 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - white lettering
1 6C4 $6.00 RCA 110% 2500 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - white lettering
1 6C4 $6.00 RCA 130% 2500 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - white lettering
1 6C4 $6.00 RCA 120% 2600 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - white lettering
1 6C4 $6.00 RCA 110% 2300 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - white lettering
1 6C4 $6.00 RCA 115% 2700 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - white lettering - canada
1 6C4 $6.00 RCA 120% 2600 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - white lettering
1 6C4 $6.00 RCA 120% 2600 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - white lettering - worn box
1 6C4 $6.00 RCA 120% 2700 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - white lettering
1 6C4 $6.00 RCA 110% 2300 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - white lettering
1 6C4 $6.00 RCA 130% 2500 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - white lettering
1 6C4 $6.00 RCA 130% 2750 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - white lettering - worn box
1 6C4 $6.00 RCA 110% 2300 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - white lettering
1 6C4 $6.00 RCA 135% 2850 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - OEM box - for Hallicrafters - white lettering
1 6C4 $6.00 RCA 110% 2350 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - USA - white lettering - JAN - damaged box
1 6C4 $6.00 RCA 125% 2700 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - white lettering - JAN - damaged box
1 6C4 $6.00 RCA 120% 2700 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - black lettering - JAN
1 6C4 $6.00 Ken-Rad 110% 2300 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - USA - JAN - for Stromberg Carlson
1 6C4 $6.00 Ken-Rad 130% 2500 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - JAN
1 6C4 $6.00 Ken-Rad 130% 2800 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - JAN
1 6C4 $6.00 Ken-Rad 120% 2300 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - JAN
1 6C4 $6.00 Ken-Rad 120% 2700 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - JAN
1 6C4 $6.00 Ken-Rad 110% 2300 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - JAN
1 6C4 $6.00 Ken-Rad 110% 2500 / 2200Gm NOS (wb) (M7) rectangular ribbed black plate - JAN
1 6C4 $6.00 Ken-Rad 110% 2350 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - JAN
1 6C4 $6.00 Raytheon 120% 2600 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate
1 6C4 $6.00 Raytheon 120% 2600 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate
1 6C4 $6.00 Raytheon 120% 2500 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate
1 6C4 $6.00 Raytheon 115% 2600 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - worn box
1 6C4 $6.00 Raytheon 115% 2400 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate
1 6C4 $6.00 Raytheon 120% 2750 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate
1 6C4 $6.00 Raytheon 110% 2500 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate
1 6C4 $6.00 Raytheon 120% 2600 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate
1 6C4 $6.00 Raytheon 110% 2500 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate
1 6C4 $6.00 Raytheon 110% 2300 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate
1 6C4 $5.00 Sylvania 120% 2900 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - yellow lettering
1 6C4 $5.00 Sylvania 125% 2900 / 2200Gm NOS (OB) (M7) square gray plate - yellow lettering - worn box
1 6C4 $5.00 Sylvania 110% 2600 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - yellow lettering
1 6C4 $5.00 Sylvania 110% 2500 / 2200Gm NOS (OB) (M7) square gray plate - yellow lettering
1 6C4 $5.00 Sylvania 110% 2450 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - yellow lettering
1 6C4 $5.00 Sylvania 110% 2400 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - yellow lettering
1 6C4 $5.00 Sylvania 110% 2500 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - yellow lettering
1 6C4 $5.00 Sylvania 115% 2700 / 2200Gm NOS (OB) (M7) square gray plate - yellow lettering
1 6C4 $5.00 Sylvania 110% 2500 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - yellow lettering
1 6C4 $5.00 Sylvania 110% 2600 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - yellow lettering
1 6C4 $5.00 Sylvania 120% 3000 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - yellow lettering
1 6C4 $5.00 Sylvania 120% 2800 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - yellow lettering
1 6C4 $5.00 Sylvania 120% 2800 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - yellow lettering
1 6C4 $5.00 Sylvania 125% 3000 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - yellow lettering
1 6C4 $5.00 Sylvania 125% 3000 / 2200Gm NOS (OB) (M7) square gray plate gray plate - red lettering - tripple mica
1 6C4 $5.00 Sylvania 115% 2600 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - red lettering
1 6C4 $5.00 Sylvania 110% 2500 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - red lettering
1 6C4 $5.00 Sylvania 110% 2500 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - red lettering
1 6C4 $5.00 Sylvania 110% 2500 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - green lettering
1 6C4 $5.00 Sylvania 120% 2750 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - green lettering
1 6C4 $5.00 Sylvania 120% 2900 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - white lettering
1 6C4 $5.00 GE 115% 2700 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - white lettering
1 6C4 $5.00 GE 115% 2600 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - white lettering - damaged box
1 6C4 $5.00 GE 115% 2700 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - white lettering
1 6C4 $5.00 GE 115% 2550 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - white lettering
1 6C4 $5.00 GE 110% 2700 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - white lettering
1 6C4 $5.00 GE 110% 2600 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - white lettering
1 6C4 $5.00 GE 110% 2700 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - white lettering
1 6C4 $5.00 GE 110% 2600 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - white lettering - worn box
1 6C4 $5.00 GE 110% 2600 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - white lettering - worn box
1 6C4 $5.00 GE 110% 2600 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - white lettering
1 6C4 $5.00 GE 110% 2600 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - white lettering - damaged box
1 6C4 $5.00 GE 120% 2800 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - white lettering
1 6C4 $5.00 GE 120% 2850 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - white lettering
1 6C4 $5.00 GE 120% 2900 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - white lettering
1 6C4 $5.00 GE 120% 2700 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - white lettering
1 6C4 $5.00 GE 120% 2600 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - white lettering
1 6C4 $5.00 GE 110% 2300 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - white lettering
1 6C4 $5.00 GE 120% 2900 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - red lettering
1 6C4 $5.00 GE 120% 2850 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - red lettering
1 6C4 $5.00 GE 120% 2800 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - red lettering
1 6C4 $5.00 GE 120% 2500 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - red lettering
1 6C4 $5.00 CBS 120% 2600 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - USA - OEM box
1 6C4 $5.00 CBS 120% 2550 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - USA - OEM box
1 6C4 $5.00 CBS 115% 2400 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - USA - OEM box
1 6C4 $5.00 CBS 110% 2600 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate
1 6C4 $5.00 CBS 120% 2900 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate
1 6C4 $5.00 CBS / Hytron 120% 2800 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate
1 6C4 $5.00 Motorola 110% 2400 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate
1 6C4 $5.00 Motorola 110% 2500 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate
1 6C4 $5.00 Motorola 120% 2500 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate
1 6C4 $5.00 Motorola 110% 2400 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate
1 6C4 $5.00 Motorola 130% 3000 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate
1 6C4 $5.00 Motorola 115% 2600 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate
1 6C4 $5.00 Motorola 115% 2700 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate
1 6C4 $5.00 Motorola 120% 2950 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate
1 6C4 $5.00 Motorola 115% 2700 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate
1 6C4 $5.00 Motorola 125% 2900 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate
1 6C4 $5.00 Motorola 120% 2600 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate
1 6C4 $5.00 Motorola 120% 2500 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate
1 6C4 $5.00 Motorola 120% 2900 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate
1 6C4 $5.00 Motorola 120% 2650 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate
1 6C4 $5.00 Motorola 115% 2800 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate
1 6C4 $5.00 Westinghouse 120% 2700 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate - for Canadian Marconi
1 6C4 $5.00 Westinghouse 120% 2500 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate
1 6C4 $5.00 Westinghouse 130% 2600 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate - canada
1 6C4 $5.00 Procomm 110% 2600 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate
1 6C4 $5.00 Procomm 110% 2400 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate
1 6C4 $5.00 ITT 130% 2900 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate
1 6C4 $5.00 Silvertone 120% 2800 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate
1 6C4 $5.00 Acturus 115% 2500 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate
1 6C4 $5.00 Daystrom-Nichpmen 130% 2500 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate
1 6C4 $5.00 Philco 110% 2600 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate
1 6C4 $5.00 Philco 120% 2700 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate
1 6C4 $5.00 Crosley 120% 2800 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate
1 6C4 $5.00 Best Test 110% 2600 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate
1 6C4 $5.00 Dumont 120% 2600 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate
1 6C4 $5.00 Conn 110% 2500 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate
1 6C4 $5.00 National Union 110% 2450 / 2200Gm NOS (OB) (M7) rectangular ribbed black plate
1 6C4 $5.00 Magnavox 120% 2500 / 2200Gm NOS (OB) (M7) square gray plate
1 6C4 $5.00 Channel Master 125% 2700 / 2200Gm NOS (OB) (M7) rectangular ribbed gray plate
1 6135 $5.00 GE 110% 2300 / 2200Gm used (rb) (M7) tripple mica - square gray plate - white lettering - five star
1 6135 $5.00 GE 120% 2600 / 2200Gm used (rb) (M7) tripple mica - square gray plate - white lettering - five star
1 6135 $5.00 GE 115% 2500 / 2200Gm used (wb) (M7) tripple mica - square gray plate - white lettering - five star
1 6135 $5.00 GE 110% 2350 / 2200Gm used (rb) (M7) tripple mica - square gray plate - white lettering - five star
1 6135 $5.00 GE 115% 2300 / 2200Gm used (rb) (M7) tripple mica - square gray plate - white lettering - five star
1 6135 $5.00 GE 100% 2250 / 2200Gm used (rb) (M7) tripple mica - square gray plate - white lettering - five star
1 6135 $5.00 unknown 100% 2200 / 2200Gm used (wb) (M7) tripple mica - square gray plate
1 6135 $5.00 unknown 110% 2300 / 2200Gm used (rb) (M7) tripple mica - square gray plate
1 6100 $5.00 Lansdale 120% 2400 / 2200Gm used (rb) (M7) rectangular ribbed black plate
1 6100 / 6C4 $5.00 Lansdale 115% 2550 / 2200Gm used (rb) (M7) square black plate - JAN
1 6100 / 6C4-WA $5.00 Sylvania 105% 2300 / 2200Gm used (rb) (M7) rectangular ribbed black plate - JAN - yellow lettering
1 6100 / 6C4-WA $5.00 Dumont 120% 2700 / 2200Gm used (rb) (M7) rectangular ribbed black plate
1 6100 / 6C4 $5.00 GE 100% 2500 / 2200Gm used (rb) (M7) tripple mica - square gray plate - white lettering
1 6100 / 6C4 $5.00 GE 110% 2300 / 2200Gm used (rb) (M7) tripple mica - square gray plate - white lettering
1 6100 / 6C4-WA $5.00 GE 110% 2600 / 2200Gm used (rb) (M7) tripple mica - square black plate - white lettering
1 6100 $5.00 GE 110% 2250 / 2200Gm used (rb) (M7) tripple mica - square black plate - white lettering
1 6100 $5.00 GE 100% 2400 / 2200Gm used (wb) (M7) tripple mica - square gray plate - white lettering
1 6100 $5.00 GE 90% 2100 / 2200Gm used (rb) (M7) tripple mica - square gray plate - white lettering
1 6100 $5.00 GE 100% 2100 / 2200Gm used (rb) (M7) tripple mica - square gray plate - red lettering
1 6C4-WA $5.00 GE 100% 2200 / 2200Gm used (rb) (M7) tripple mica - square gray plate - white lettering
1 6C4-WA $5.00 GE 110% 2500 / 2200Gm used (rb) (M7) tripple mica - square gray plate - white lettering
1 6C4-WA $5.00 GE 105% 2400 / 2200Gm used (rb) (M7) tripple mica - square gray plate - white lettering
1 6C4-WA $5.00 GE 110% 2500 / 2200Gm used (rb) (M7) tripple mica - square gray plate - white lettering
1 6C4-WA $5.00 Sylvania 100% 2250 / 2200Gm used (rb) (M7) tripple mica - square gray plate - green lettering
1 6C4-WA $5.00 Sylvania 110% 2600 / 2200Gm used (rb) (M7) tripple mica - square gray plate - green lettering
1 6C4-WA $5.00 Sylvania 110% 2600 / 2200Gm used (rb) (M7) tripple mica - square gray plate - green lettering
1 6C4-WA $5.00 Sylvania 100% 2400 / 2200Gm used (rb) (M7) tripple mica - square gray plate - green lettering
1 6C4-WA $4.00 Sylvania 110% 2400 / 2200Gm used (rb) (M7) square gray plate - green lettering
1 6C4-WA $4.00 GE 100% 1800 / 2200Gm used (rb) (M7) square gray plate - green lettering - JAN
1 6C4-WA $4.00 GE 100% 2400 / 2200Gm used (rb) (M7) square gray plate - green lettering - JAN
1 6C4-W $5.00 Sylvania 105% 2500 / 2200Gm used (rb) (M7) square gray plate - green lettering - short bottle
1 6C4 $5.00 Raytheon 110% 2600 / 2200Gm used (rb) (M7) small flat black plate - short bottle (au30)
1 6C4 $5.00 Sylvania 120% 2600 / 2200Gm used (rb) (M7) tripple mica - rectangular ribbed black plate - black lettering - JAN
1 6C4 $5.00 Sylvania 100% 2400 / 2200Gm used (rb) (M7) tripple mica - square gray plate - yellow lettering
1 6C4 $5.00 Sylvania 120% 2750 / 2200Gm used (rb) (M7) tripple mica - rectangular ribbed black plate - black lettering - JAN
1 6C4 $5.00 Sylvania 120% 2750 / 2200Gm used (rb) (M7) tripple mica - rectangular ribbed black plate - black lettering - JAN
1 6C4 $4.00 unknown 100% 2300 / 2200Gm used (rb) (M7) tripple mica -rectangular ribbed black plate
1 6C4 $4.00 unknown 120% 2300 / 2200Gm used (rb) (M7) tripple mica -rectangular ribbed black plate
1 6C4 $5.00 RCA 105% 2300 / 2200Gm used (rb) (M7) rectangular ribbed black plate - white lettering
1 6C4 $5.00 RCA 100% 2400 / 2200Gm used (rb) (M7) rectangular ribbed black plate - white lettering
1 6C4 $5.00 RCA 110% 2400 / 2200Gm used (rb) (M7) rectangular ribbed black plate - white lettering
1 6C4 $5.00 RCA 120% 2300 / 2200Gm used (rb) (M7) rectangular ribbed black plate - white lettering
1 6C4 $5.00 RCA 100% 2150 / 2200Gm used (rb) (M7) rectangular ribbed black plate - white lettering
1 6C4 $5.00 RCA 120% 2700 / 2200Gm used (rb) (M7) rectangular ribbed black plate - white lettering
1 6C4 $5.00 RCA 110% 2450 / 2200Gm used (rb) (M7) rectangular ribbed black plate - white lettering
1 6C4 $5.00 RCA 110% 2500 / 2200Gm used (rb) (M7) rectangular ribbed black plate - white lettering
1 6C4 $5.00 RCA 110% 2600 / 2200Gm used (rb) (M7) rectangular ribbed black plate - white lettering
1 6C4 $5.00 RCA 100% 2400 / 2200Gm used (rb) (M7) rectangular ribbed black plate - white lettering
1 6C4 $5.00 RCA 120% 2300 / 2200Gm used (rb) (M7) rectangular ribbed black plate - white lettering
1 6C4 $5.00 RCA 130% 2800 / 2200Gm used (wb) (M7) rectangular ribbed black plate - white lettering
1 6C4 $5.00 RCA 110% 2300 / 2200Gm used (wb) (M7) rectangular ribbed black plate - white lettering
1 6C4 $5.00 RCA 130% 2750 / 2200Gm used (rb) (M7) rectangular ribbed black plate - white lettering
1 6C4 $5.00 RCA 110% 2100 / 2200Gm used (wb) (M7) rectangular ribbed black plate - red lettering
1 6C4 $5.00 RCA 110% 2400 / 2200Gm used (rb) (M7) rectangular ribbed gray plate - red lettering
1 6C4 $5.00 RCA 120% 2500 / 2200Gm used (rb) (M7) rectangular ribbed black plate - red lettering
1 6C4 $5.00 RCA 100% 2100 / 2200Gm used (rb) (M7) rectangular ribbed gray plate - red lettering
1 6C4 $5.00 RCA 120% 2250 / 2200Gm used (rb) (M7) rectangular ribbed gray plate - red lettering
1 6C4 $5.00 RCA 110% 2400 / 2200Gm used (rb) (M7) rectangular ribbed gray plate - red lettering
1 6C4 $5.00 RCA 110% 2500 / 2200Gm used (rb) (M7) rectangular ribbed gray plate - red lettering
1 6C4 $5.00 RCA 100% 2250 / 2200Gm used (rb) (M7) rectangular ribbed gray plate - red lettering
1 6C4 $5.00 RCA 115% 2650 / 2200Gm used (rb) (M7) rectangular ribbed gray plate - red lettering
1 6C4 $5.00 RCA 100% 2400 / 2200Gm used (rb) (M7) rectangular ribbed gray plate - red lettering
1 6C4 $5.00 RCA 115% 2500 / 2200Gm used (rb) (M7) rectangular ribbed black plate - red lettering
1 6C4 $5.00 RCA 120% 2600 / 2200Gm used (rb) (M7) rectangular ribbed black plate - black lettering - JAN
1 6C4 $5.00 RCA 130% 2250 / 2200Gm used (rb) (M7) rectangular ribbed black plate - black lettering - JAN
1 6C4 $4.00 GE 120% 2700 / 2200Gm used (rb) (M7) rectangular ribbed gray plate - white lettering
1 6C4 $4.00 GE 110% 2500 / 2200Gm used (rb) (M7) rectangular ribbed gray plate - white lettering
1 6C4 $4.00 GE 115% 2700 / 2200Gm used (rb) (M7) rectangular ribbed gray plate - white lettering
1 6C4 $4.00 GE 110% 2500 / 2200Gm used (rb) (M7) rectangular ribbed gray plate - white lettering
1 6C4 $4.00 GE 120% 2700 / 2200Gm used (rb) (M7) rectangular ribbed gray plate - white lettering
1 6C4 $4.00 GE 105% 2400 / 2200Gm used (rb) (M7) rectangular ribbed gray plate - white lettering
1 6C4 $4.00 GE 100% 2200 / 2200Gm used (rb) (M7) rectangular ribbed gray plate - white lettering
1 6C4 $4.00 GE 100% 2200 / 2200Gm used (rb) (M7) rectangular ribbed gray plate - white lettering
1 6C4 $4.00 GE 100% 2200 / 2200Gm used (rb) (M7) rectangular ribbed gray plate - white lettering
1 6C4 $4.00 GE 100% 2600 / 2200Gm used (rb) (M7) rectangular ribbed gray plate - white lettering
1 6C4 $4.00 GE 100% 2300 / 2200Gm used (rb) (M7) rectangular ribbed gray plate - white lettering
1 6C4 $4.00 GE 100% 2300 / 2200Gm used (rb) (M7) rectangular ribbed gray plate - white lettering
1 6C4 $4.00 GE 100% 2300 / 2200Gm used (rb) (M7) rectangular ribbed gray plate - white lettering
1 6C4 $4.00 GE 100% 2600 / 2200Gm used (rb) (M7) rectangular ribbed gray plate - red lettering
1 6C4 $4.00 Sylvania 120% 2900 / 2200Gm used (rb) (M7) rectangular ribbed gray plate - yellow lettering
1 6C4 $4.00 Tung-Sol 100% 2200 / 2200Gm used (rb) (M7) rectangular ribbed gray plate
1 6C4 $4.00 Tung-SOl 105% 2200 / 2200Gm used (rb) (M7) rectangular ribbed gray plate
1 6C4 $4.00 National Union 120% 2800 / 2200Gm used (rb) (M7) rectangular ribbed black plate
1 6C4 $4.00 National Union 120% 2550 / 2200Gm used (rb) (M7) rectangular ribbed black plate
1 6C4 $4.00 Heath 120% 2800 / 2200Gm used (wb) (M7) rectangular ribbed black plate
1 6C4 $4.00 National Union 115% 2500 / 2200Gm used (rb) (M7) rectangular ribbed black plate
1 6C4 $4.00 Philco 100% 2750 / 2200Gm used (rb) (M7) rectangular ribbed black plate
1 6C4 $4.00 Sylvania 110% 2400 / 2200Gm used (rb) (M7) rectangular ribbed black plate - green lettering
1 6C4 $4.00 Sylvania 110% 2300 / 2200Gm used (rb) (M7) rectangular ribbed black plate - green lettering
1 6C4 $4.00 Sylvania 100% 2450 / 2200Gm used (rb) (M7) rectangular ribbed black plate - red lettering
1 6C4 $4.00 Raytheon 100% 2200 / 2200Gm used (wb) (M7) rectangular ribbed black plate
1 6C4 $4.00 Ken-Rad 125% 2550 / 2200Gm used (wb) (M7) rectangular ribbed black plate
1 6C4 $4.00 Sylvania 100% 2150 / 2200Gm used (wb) (M7) rectangular ribbed black plate - green lettering
1 6C4 $4.00 unknown 130% 2700 / 2200Gm used (rb) (M7) rectangular ribbed black plate - JAN
1 6C4 $4.00 Bendix 100% 2050 / 2200Gm used (L) (M7) rectangular ribbed gray plate
1 6C4 $4.00 Philco 120% 2600 / 2200Gm used (rb) (M7) rectangular ribbed black plate (au30)
1 6C4 $4.00 Philco 110% 2500 / 2200Gm used (rb) (M7) rectangular ribbed black plate (au30)
1 6C4 $4.00 Philco 120% 2800 / 2200Gm used (rb) (M7) rectangular ribbed black plate (au30)
1 6C4 $4.00 Motorola 100% 2250 / 2200Gm used (rb) (M7) rectangular ribbed gray plate (au30)
1 6C4 $4.00 Motorola 100% 2200 / 2200Gm used (rb) (M7) rectangular ribbed gray plate (au30)
1 6C4 $4.00 Motorola 115% 2400 / 2200Gm used (rb) (M7) rectangular ribbed gray plate (au30)
1 6C4 $4.00 Motorola 115% 2500 / 2200Gm used (rb) (M7) rectangular ribbed gray plate (au30)
1 6C4 $4.00 Raytheon 110% 2500 / 2200Gm used (rb) (M7) rectangular ribbed gray plate (au30)
1 6C4 $4.00 Raytheon 105% 2000 / 2200Gm used (rb) (M7) rectangular ribbed gray plate (au30)
1 6C4 $4.00 Raytheon 120% 2500 / 2200Gm used (rb) (M7) rectangular ribbed black plate (au30)
1 6C4 $4.00 Raytheon 130% 2500 / 2200Gm used (rb) (M7) rectangular ribbed black plate (au30)
1 6C4 $4.00 National Union 110% 2300 / 2200Gm used (rb) (M7) rectangular ribbed black plate (au30)
1 6C4 $4.00 National Union 120% 2900 / 2200Gm used (rb) (M7) rectangular ribbed black plate (au30)
1 6C4 $4.00 National Union 110% 2500 / 2200Gm used (rb) (M7) rectangular ribbed black plate (au30)
1 6C4 $4.00 National Union 120% 2750 / 2200Gm used (rb) (M7) rectangular ribbed black plate (au30)
1 6C4 $4.00 National Union 110% 2300 / 2200Gm used (rb) (M7) rectangular ribbed black plate (au30)
1 6C4 $4.00 CBS 100% 2250 / 2200Gm used (rb) (M7) rectangular ribbed gray plate (au30)
1 6C4 $4.00 Zenith 100% 2250 / 2200Gm used (rb) (M7) rectangular ribbed gray plate (au30)
1 6C4 $4.00 Viking 110% 2450 / 2200Gm used (rb) (M7) rectangular ribbed gray plate - canada (au30)
1 6C4 $4.00 Majestic 100% 2200 / 2200Gm used (rb) (M7) rectangular ribbed gray plate (au30)
1 6C4 $4.00 Packard Bell 120% 2850 / 2200Gm used (rb) (M7) rectangular ribbed gray plate (au30)
1 6C4 $4.00 Delta 110% 2300 / 2200Gm used (rb) (M7) rectangular ribbed gray plate (au30)
1 6C4 $4.00 Daystrom 120% 2700 / 2200Gm used (rb) (M7) rectangular ribbed gray plate (au30)
1 6C4 $4.00 Rogers 110% 2500 / 2200Gm used (rb) (M7) rectangular ribbed gray plate (au30)
1 6C4 $4.00 Hammarland 100% 2600 / 2200Gm used (rb) (M7) rectangular ribbed gray plate (au30)
1 6C4 $4.00 Rad-Tel 120% 2700 / 2200Gm used (rb) (M7) rectangular ribbed gray plate (au30)
1 6C4 $4.00 Delco / GM 110% 2500 / 2200Gm used (rb) (M7) rectangular ribbed black plate (au30)
1 6C4 $4.00 B&K 110% 2500 / 2200Gm used (rb) (M7) rectangular ribbed black plate (au30)
1 6C4 $4.00 Eico 110% 2300 / 2200Gm used (rb) (M7) rectangular ribbed black plate (au30)
1 6C4 $4.00 Continental 120% 2700 / 2200Gm used (rb) (M7) rectangular ribbed black plate (au30)
1 6C4 $4.00 Westinghouse 120% 200 / 2200Gm used (rb) (M7) rectangular ribbed black plate (au30)
1 6C4 $4.00 Emerson 110% 2300 / 2200Gm used (rb) (M7) rectangular ribbed black plate (au30)
1 6C4 $4.00 RCA 115% 2600 / 2200Gm used (rb) (M7) rectangular ribbed black plate - white lettering (au30)
1 6C4 $4.00 RCA 110% 2500 / 2200Gm used (rb) (M7) rectangular ribbed black plate - red lettering (au30)
1 6C4 $4.00 Sylvania 120% 2800 / 2200Gm used (rb) (M7) rectangular ribbed black plate - yellow lettering (au30)
1 6C4 $4.00 Ken-Rad 110% 2500 / 2200Gm used (rb) (M7) rectangular ribbed black plate (au30)
1 6C4 $4.00 Motorola 120% 2750 / 2200Gm used (rb) (M7) rectangular ribbed gray plate (au30)
1 6C4 $4.00 Devry Tech 120% 2800 / 2200Gm used (rb) (M7) rectangular ribbed gray plate - by GE (au30)
1 6C4 $4.00 Hallicrafters 120% 2900 / 2200Gm used (rb) (M7) rectangular ribbed gray plate (au30)
1 6C4 $4.00 Wards Airline 120% 2900 / 2200Gm used (rb) (M7) rectangular ribbed gray plate (au30)
1 6C4 $4.00 GE 130% 2900 / 2200Gm used (rb) (M7) rectangular ribbed gray plate - white lettering (au30)
1 6C4 $3.00 unknown 120% 2650 / 2200Gm used (rb) (M7) rectangular ribbed black plate (au30)
1 6C4 $3.00 unknown 110% 2600 / 2200Gm used (rb) (M7) rectangular ribbed gray plate (au30)
1 6C4 $3.00 unknown 110% 2500 / 2200Gm used (rb) (M7) rectangular ribbed gray plate (au30)
1 6C4 $3.00 unknown 130% 3000 / 2200Gm used (rb) (M7) rectangular ribbed gray plate (au30)
1 6C4 $3.00 unknown 120% 2700 / 2200Gm used (rb) (M7) rectangular ribbed gray plate (au30)
1 6C4 $3.00 unknown 110% 2600 / 2200Gm used (rb) (M7) rectangular ribbed gray plate (au30)
1 6C4 $3.00 unknown 120% 2750 / 2200Gm used (rb) (M7) rectangular ribbed black plate (au30)
1 6C4 $3.00 unknown 120% 2800 / 2200Gm used (rb) (M7) rectangular ribbed black plate (au30)
1 6C4 $3.00 unknown 120% 2900 / 2200Gm used (rb) (M7) rectangular ribbed black plate (au30)
1 6C4-WA $2.50 GE 90% 2150 / 2200Gm used (rb) (M7) tripple mica - square gray plate - white lettering (au27)
1 6C4 $2.00 Arcturus 90% 1800 / 2200Gm used (rb) (M7) rectangular ribbed gray plate (au30)
1 6C4 $2.00 unknown 95% 2000 / 2200Gm used (rb) (M7) rectangular ribbed black plate (au30)
1 6C4 $2.00 Tung-Sol 95% 2200 / 2200Gm used (rb) (M7) rectangular ribbed gray plate (au30)
1 6C4 $2.00 Motorola 90% 2100 / 2200Gm used (L) (M7) rectangular ribbed gray plate (au30)
1 6C4 $2.00 Motorola 90% 2000 / 2200Gm used (L) (M7) rectangular ribbed gray plate (au30)
1 6C4 $2.00 Motorola 90% 2000 / 2200Gm used (L) (M7) rectangular ribbed gray plate (au30)
1 6C4 $2.00 Motorola 90% 2100 / 2200Gm used (L) (M7) rectangular ribbed gray plate (au30)
1 6C4 $2.00 National Union 90% 1900 / 2200Gm used (L) (M7) rectangular ribbed black plate - US Navy (au27)
1 6C4 $2.00 National Union 90% 2100 / 2200Gm used (L) (M7) rectangular ribbed black plate (au30)
1 6C4 $2.00 Zenith 90% 1950 / 2200Gm used (L) (M7) rectangular ribbed gray plate (au30)
1 6C4 $2.00 Philco 90% 1900 / 2200Gm used (L) (M7) rectangular ribbed black plate (au30)
1 6C4 $2.00 RCA 90% 1850 / 2200Gm used (L) (M7) rectangular ribbed black plate - white lettering (au30)
1 6C4 $2.00 RCA 90% 2000 / 2200Gm used (L) (M7) rectangular ribbed black plate - white lettering (au30)
1 6C4 $2.00 RCA 90% 1800 / 2200Gm used (L) (M7) rectangular ribbed black plate - white lettering (au30)
1 6C4 $2.00 RCA 90% 1900 / 2200Gm used (L) (M7) rectangular ribbed black plate - white lettering (au30)
1 6C4 $2.00 RCA 90% 2100 / 2200Gm used (L) (M7) rectangular ribbed gray plate - red lettering (au30)
1 6C4 $2.00 Sylvania 90% 2100 / 2200Gm used (L) (M7) rectangular ribbed black plate - yellow lettering (au30)
1 6C4 $2.00 Sylvania 90% 2250 / 2200Gm used (L) (M7) rectangular ribbed black plate - yellow lettering (au30)
1 6C4 $2.00 Sylvania 90% 2000 / 2200Gm used (L) (M7) rectangular ribbed black plate - green lettering (au30)
1 6C4 $2.00 Sylvania 90% 2000 / 2200Gm used (L) (M7) rectangular ribbed black plate - green lettering (au30)
1 6C4 $2.00 unknown 90% 1900 / 2200Gm used (L) (M7) rectangular ribbed black plate (au30)
1 6C4 $2.00 unknown 90% 1900 / 2200Gm used (L) (M7) rectangular ribbed black plate (au30)
Notes:
(OB) = original box, (rb) = relabeled/replacement box, (wb) = white box, (L) = loose (no box), (pl) = paper label on tube (original or third party)
(H) = tested on Hickok 539A
(ST)=ST Style, (GT)=GT Style, (TT)=Tall Tubular, (M7)=7pin miniature, M9=9pin miniature, (SM)=subminiature, JAN = Military
Emission Strength = Percentage of emission measured on Eico 666 tube tester
(Emission Strength = 100% baseline reference, >80%:good, >60%:fair >40%=diode good).
Gm = Mutual conductance measured on Hickok 533 tube tester; Except (H)=tested on Hickok 539A
(Gm = measured/baseline, measured1:measured2/baseline, measured1:measured2/baseline1:baseline2).

How To Order:

Purchasing our audio tubes is easy.
Just send us an email indicating the tubes (including quantities) you want.
We will let you know the total price including shipping and handling.

Shipping and Handling Information

Contact MDB Ventures
sales@mdbventures.com
or
sales@fourwater.com

Due to the highly volatile nature of the tube business, all Prices are subject to change without notice.

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Contact MDB Ventures
sales@mdbventures.com
or
sales@fourwater.com