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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 6AQ8 / ECC85 $15.00 RCA 120% / 120% 6000: 5800 / 4000Gm NOS (OB) (M9) oval gray plates - Japan
1 6AQ8 / ECC85 $15.00 RCA 130% / 130% 5600: 5800 / 4000Gm NOS (OB) (M9) smooth rectangular gray plates - Britain
1 6AQ8 / ECC85 $15.00 RCA 130% / 140% 5600: 5800 / 4000Gm NOS (OB) (M9) smooth rectangular gray plates - Mexico
1 6AQ8 / ECC85 $15.00 RCA 130% / 120% 5400: 5200 / 4000Gm NOS (wb) (M9) smooth rectangular gray plates - Germany
1 6AQ8 / ECC85 $15.00 RCA 120% / 130% 4600: 5500 / 4000Gm NOS (OB) (M9) smooth rectangular gray plates - Mexico
1 6AQ8 / ECC85 $15.00 RCA 115% / 125% 4000: 4600 / 4000Gm NOS (OB) (M9) smooth rectangular gray plates - Mexico
1 6AQ8 / ECC85 $15.00 RCA 125% / 115% 5600: 5000 / 4000Gm NOS (OB) (M9) smooth rectangular gray plates - Japan
1 6AQ8 / ECC85 $15.00 RCA 100% / 100% 5400: 5500 / 4000Gm NOS (OB) (M9) smooth rectangular gray plates - Canada
1 6AQ8 / ECC85 $15.00 Tung-Sol 115% / 115% 5200: 5200 / 4000Gm NOS (OB) (M9) ribbed rectangular gray plates - USA
1 6AQ8 / ECC85 $15.00 GE 130% / 130% 5200: 5200 / 4000Gm NOS (OB) (M9) smooth rectangular gray plates - Britain - missing box flap
1 6AQ8 / ECC85 $15.00 Sonotone 140% / 120% 6000: 5500 / 4000Gm NOS (OB) (M9) smooth rectangular gray plates - Germany
1 6AQ8 / ECC85 $15.00 Sylvania 120% / 120% 5100: 4800 / 4000Gm NOS (OB) (M9) smooth rectangular gray plates - Holland
1 6AQ8 / ECC85 $15.00 Sylvania 120% / 120% 5000: 5200 / 4000Gm NOS (OB) (M9) smooth rectangular gray plates - England
1 6AQ8 / ECC85 $7.50 RCA 130% / 120% 5200: 5000 / 4000Gm used (wb) (M9) smooth rectangular gray plates - England
1 6AQ8 / ECC85 $7.50 RCA 110% / 110% 4000: 4000 / 4000Gm used (wb) (M9) smooth rectangular gray plates - Germany
1 6AQ8 / ECC85 $6.00 ITT 120% / 115% 4800: 4600 / 4000Gm used (rb) (M9) smooth rectangular gray plates - Japan
1 6AQ8 / ECC85 $5.00 Sears 100% / 125% 3500: 4500 / 4000Gm used (rb) (M9) smooth rectangular gray plates
1 6AQ8 / ECC85 $5.00 unknown 100% / 110% 4000: 4400 / 4000Gm used (rb) (M9) smooth rectangular gray plates - Britain
1 6AQ8 / ECC85 $5.00 unknown 100% / 110% 4100: 3800 / 4000Gm used (wb) (M9) smooth rectangular gray plates
1 6AQ8 / ECC85 $5.00 NEC 110% / 105% 3500: 3500 / 4000Gm used (wb) (M9) smooth rectangular gray plates - Japan
1 6AQ8 / ECC85 $5.00 Sylvania 100% / 100% 3500: 3500 / 4000Gm used (wb) (M9) smooth rectangular gray plates - Holland
1 6AQ8 / ECC85 $3.50 RCA 90% / 100% 2600: 2800 / 4000Gm used (rb) (M9) smooth rectangular gray plates - Germany
1 6AQ8 / ECC85 $1.00 Amperex 80% / 120% 2000: 3600 / 4000Gm used (ob) (M9) Bugle boy - smooth rectangular gray plates - Holland
1 6AQ8 / ECC85 $4.00 Telefunken 75% / 80% 1800: 2000 / 4000Gm used(wb) (M9) smooth rectangular gray plates
1 9AQ8 / PCC85 $3.00 Matsushita 130% / 120% 6750: 6500 / 4000Gm NOS (OB) (M9) smooth rectangular gray plates - japan
1 9AQ8 / PCC85 $3.00 Matsushita 130% / 130% 7000: 7000 / 4000Gm NOS (OB) (M9) smooth rectangular gray plates - japan
1 9AQ8 / PCC85 $3.00 Matsushita 110% / 105% 6500: 6250 / 4000Gm NOS (OB) (M9) smooth rectangular gray plates - japan
1 9AQ8 / PCC85 $3.00 GE 100% / 100% 4800: 5000 / 4000Gm NOS (OB) (M9) smooth rectangular gray plates - japan
1 9AQ8 $3.00 GE 100% / 100% 5000: 5000 / 4000Gm NOS (OB) (M9) smooth rectangular gray plates - italy
1 9AQ8 / PCC85 $3.00 GE 120% / 110% 6250: 6000 / 4000Gm NOS (OB) (M9) smooth rectangular gray plates - japan
1 9AQ8 / PCC85 $3.00 Raytheon 120% / 110% 6000: 5800 / 4000Gm NOS (OB) (M9) smooth rectangular gray plates - japan
1 9AQ8 $3.00 Philips 100% / 100% 4800: 4800 / 4000Gm NOS (OB) (M9) smooth rectangular gray plates - england
1 9AQ8 / PCC85 $3.00 RCA 100% / 105% 5600: 5800 / 4000Gm NOS (OB) (M9) smooth rectangular gray plates - japan
1 9AQ8 / PCC85 $2.00 RCA 120% / 130% 6400: 6500 / 4000Gm used (OB) (M9) smooth rectangular gray plates - japan
1 9AQ8 / PCC85 $2.00 Packard Bell 100% / 110% 5400: 5600 / 4000Gm used (L) (M9) smooth rectangular gray plates
1 9AQ8 / PCC85 $1.00 Matsushita 90% / 100% 5200: 5100 / 4000Gm used (L) (M9) smooth rectangular gray plates
1 9AQ8 / PCC85 $0.50 Packard Bell 90% / 80% 5000: 5000 / 4000Gm used (L) (M9) smooth rectangular gray plates
1 9AQ8 / PCC85 $0.50 Matsushita 80% / 95% 4600: 4600 / 4000Gm used (L) (M9) smooth rectangular gray plates
1 9AQ8 / PCC85 $2.00 Matsushita 100% / 120% 5200: 5800 / 4000Gm used (L) (M9) smooth rectangular gray plates
1 9AQ8 / PCC85 $2.00 Matsushita 100% / 110% 5500: 5500 / 4000Gm used (L) (M9) smooth rectangular gray plates
1 9AQ8 / PCC85 $2.00 unknown 110% / 115% 5800: 6000 / 4000Gm used (L) (M9) smooth rectangular gray plates
1 9AQ8 / PCC85 $1.00 Matsushita 100% / 90% 5400: 5000 / 4000Gm used (L) (M9) smooth rectangular gray plates
1 9AQ8 / PCC85 $1.00 Arvin 90% / 110% 6000: 6500 / 4000Gm used (L) (M9) smooth rectangular gray plates
1 9AQ8 / PCC85 $1.00 RCA 90% / 90% 5000: 5000 / 4000Gm used (L) (M9) smooth rectangular gray plates
1 9AQ8 / PCC85 $1.00 Matsushita 90% / 110% 5000: 5600 / 4000Gm used (L) (M9) smooth rectangular gray plates
1 9AQ8 / PCC85 $1.00 Matsushita 90% / 95% 5500: 5800 / 4000Gm used (L) (M9) smooth rectangular gray plates
1 9AQ8 / PCC85 $1.00 Matsushita 90% / 100% 5000: 5400 / 4000Gm used (L) (M9) smooth rectangular gray plates
1 6922 $20.00 Sovtek 110% / 100% 10000: 9500 / 8000Gm NOS (wb) (M9) ---
1 6DJ8 / ECC88 $40.00 RCA 140% / 140% 10000: 10000 / 8000Gm NOS (OB) (M9) red - Holland
1 6DJ8 / ECC88 $40.00 RCA 130% / 130% 9500: 9500 / 8000Gm NOS (OB) (M9) red - Germany
1 6DJ8 / ECC88 $35.00 RCA 120% / 135% 9500: 10000 / 8000Gm NOS (OB) (M9) red - Japan
1 6DJ8 $15.00 Zenith 120% / 135% 10000: 10000 / 8000Gm NOS (OB) (M9) USA
1 6DJ8 $15.00 Sylvania 130% / 120% 9500: 9000 / 8000Gm NOS (OB (M9) yellow - USA
1 6DJ8 $15.00 Sylvania 140% / 135% 10500: 10500 / 8000Gm NOS (OB) (M9) Yellow - Germany
1 6DJ8 $15.00 GE 120% / 115% 10000: 10000 / 8000Gm NOS (OB) (M9) white - USA
1 6DJ8 / ECC88 $20.00 Telefunken 110% / 90% 7500: 7000 / 8000Gm used (rb) (M9) germany - diamond base
1 6DJ8 / ECC88 $20.00 Amperex 110% / 110% 7500: 8000 / 8000Gm used (wb) (M9) britain - (cat:410-5)
1 6DJ8 / ECC88 $20.00 Tesla 100% / 110% 7000: 7500 / 8000Gm used (wb) (M9) Checkoslovakia
1 6DJ8 / ECC88 $15.00 Toshiba for Tektronix 120% / 100% 9000: 8000 / 8000Gm used (OB) (M9) japan - OEM (M3624)
1 6DJ8 $20.00 Siemens 130% / 130% 10000: 10500 / 8000Gm used (wb) (M9) ---
1 6DJ8 $15.00 GE 120% / 140% 8000: 9000 / 8000Gm used (wb) (M9) white
1 6DJ8 $15.00 GE 120% / 120% 10500: 10500 / 8000Gm used (OB) (M9) USA - white
1 6DJ8 $15.00 GE 100% / 115% 8500: 9000 / 8000Gm used (OB) (M9) USA - green
1 6DJ8 / ECC88 $15.00 RCA 130% / 110% 8000: 9000 / 8000Gm used (wb) (M9) germany - red
1 6DJ8 $4.00 Sylvania 105% / 95% 5500: 6000 / 8000Gm used (L) (M9) green - JAN - USA
1 6DJ8 / ECC88 $4.00 unknown 90% / 90% 80 / 80dmc used (L) (M9) ---
1 6DT8 $10.00 Raytheon 110% / 110% 4600: 4600 / 4000Gm NOS (OB) (M9) oval black plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 125% / 110% 4800: 4800 / 4000Gm NOS (OB) (M9) red lettering - rectangular gray plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 110% / 120% 4500: 4500 / 4000Gm NOS (OB) (M9) red lettering - oval black plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 125% / 120% 5000: 4600 / 4000Gm NOS (OB) (M9) red lettering - oval black plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 135% / 130% 4800: 4600 / 4000Gm NOS (OB) (M9) red lettering - oval black plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 130% / 120% 5000: 4700 / 4000Gm NOS (OB) (M9) red lettering - oval black plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 100% / 100% 4100: 4100 / 4000Gm NOS (OB) (M9) red lettering - oval black plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 120% / 120% 4400: 4500 / 4000Gm NOS (OB) (M9) red lettering - oval black plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 130% / 130% 5000: 5000 / 4000Gm NOS (OB) (M9) red lettering - oval black plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 120% / 120% 4800: 5000 / 4000Gm NOS (OB) (M9) red lettering - oval black plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 130% / 125% 5000: 4700 / 4000Gm NOS (OB) (M9) red lettering - oval black plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 130% / 130% 5300: 4200 / 4000Gm NOS (OB) (M9) red lettering - oval black plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 135% / 130% 5000: 5000 / 4000Gm NOS (OB) (M9) red lettering - oval black plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 120% / 110% 4600: 4200 / 4000Gm NOS (OB) (M9) red lettering - oval black plates (6V 12AT7 with shield) - worn box
1 6DT8 $10.00 RCA 130% / 120% 4500: 4400 / 4000Gm NOS (OB) (M9) red lettering - oval black plates (6V 12AT7 with shield) - missing box flap
1 6DT8 $10.00 RCA 120% / 115% 4800: 4200 / 4000Gm NOS (OB) (M9) red lettering - oval black plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 140% / 135% 5500: 5300 / 4000Gm NOS (OB) (M9) red lettering - oval black plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 100% / 100% 4000: 4000 / 4000Gm NOS (OB) (M9) red lettering - oval black plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 130% / 130% 4900: 5000 / 4000Gm NOS (OB) (M9) red lettering - oval black plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 115% / 110% 4100: 4000 / 4000Gm NOS (OB) (M9) red lettering - oval black plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 110% / 110% 4400: 4600 / 4000Gm NOS (OB) (M9) red lettering - oval black plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 120% / 120% 4100: 4200 / 4000Gm NOS (OB) (M9) red lettering - oval black plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 135% / 140% 4800: 5200 / 4000Gm NOS (OB) (M9) red lettering - oval black plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 110% / 115% 4100: 4400 / 4000Gm NOS (OB) (M9) red lettering - oval black plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 120% / 120% 4500: 4600 / 4000Gm NOS (OB) (M9) red lettering - oval black plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 130% / 120% 4900: 4800 / 4000Gm NOS (OB) (M9) red lettering - oval black plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 120% / 120% 4400: 4800 / 4000Gm NOS (OB) (M9) red lettering - oval black plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 120% / 120% 4500: 4500 / 4000Gm NOS (OB) (M9) red lettering - oval black plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 130% / 120% 5000: 4400 / 4000Gm NOS (OB) (M9) red lettering - oval black plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 130% / 130% 5000: 5000 / 4000Gm NOS (OB) (M9) red lettering - oval black plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 130% / 130% 5000: 5000 / 4000Gm NOS (OB) (M9) red lettering - rectangular gray plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 110% / 115% 4200: 4400 / 4000Gm NOS (OB) (M9) red lettering - rectangular gray plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 120% / 130% 4300: 4800 / 4000Gm NOS (OB) (M9) red lettering - rectangular gray plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 120% / 125% 4500: 4700 / 4000Gm NOS (OB) (M9) red lettering - rectangular gray plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 110% / 110% 4300: 4200 / 4000Gm NOS (OB) (M9) red lettering - rectangular gray plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 120% / 120% 4300: 4300 / 4000Gm NOS (OB) (M9) red lettering - rectangular gray plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 115% / 115% 4200: 4200 / 4000Gm NOS (OB) (M9) red lettering - rectangular gray plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 130% / 120% 4900: 4700 / 4000Gm NOS (OB) (M9) red lettering - rectangular gray plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 130% / 130% 4900: 4800 / 4000Gm NOS (OB) (M9) red lettering - rectangular gray plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 115% / 130% 4200: 4800 / 4000Gm NOS (OB) (M9) red lettering - rectangular gray plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 120% / 120% 4400: 4500 / 4000Gm NOS (OB) (M9) red lettering - rectangular gray plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 130% / 130% 4500: 4500 / 4000Gm NOS (OB) (M9) red lettering - rectangular gray plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 130% / 120% 4400: 4600 / 4000Gm NOS (OB) (M9) red lettering - rectangular gray plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 120% / 130% 4800: 5000 / 4000Gm NOS (OB) (M9) red lettering - rectangular gray plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 120% / 110% 4800: 4600 / 4000Gm NOS (OB) (M9) red lettering - rectangular gray plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 130% / 120% 5000: 4200 / 4000Gm NOS (OB) (M9) red lettering - rectangular gray plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 120% / 110% 4400: 4000 / 4000Gm NOS (OB) (M9) red lettering - rectangular gray plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 120% / 130% 4700: 5000 / 4000Gm NOS (OB) (M9) red lettering - rectangular gray plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 120% / 110% 4200: 4200 / 4000Gm NOS (OB) (M9) red lettering - rectangular gray plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 130% / 130% 5100: 4800 / 4000Gm NOS (OB) (M9) red lettering - rectangular gray plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 130% / 130% 5000: 5000 / 4000Gm NOS (OB) (M9) red lettering - rectangular gray plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 100% / 120% 4000: 4400 / 4000Gm NOS (OB) (M9) red lettering - rectangular gray plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 120% / 120% 4400: 4500 / 4000Gm NOS (OB) (M9) red lettering - rectangular gray plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 130% / 130% 4700: 5000 / 4000Gm NOS (OB) (M9) red lettering - rectangular gray plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 120% / 125% 4400: 4600 / 4000Gm NOS (OB) (M9) red lettering - rectangular gray plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 120% / 110% 4500: 4000 / 4000Gm NOS (OB) (M9) red lettering - rectangular gray plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 110% / 110% 4400: 4500 / 4000Gm NOS (OB) (M9) red lettering - oval gray plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 130% / 110% 5000: 4500 / 4000Gm NOS (OB) (M9) red lettering - oval gray plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 110% / 110% 4200: 4300 / 4000Gm NOS (OB) (M9) white lettering - oval black plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 110% / 110% 4300: 4400 / 4000Gm NOS (OB) (M9) white lettering - oval black plates (6V 12AT7 with shield)
1 6DT8 $10.00 RCA 120% / 120% 4900: 5000 / 4000Gm NOS (OB) (M9) white lettering - oval black plates (6V 12AT7 with shield)
1 6DT8 $10.00 GE 110% / 110% 4000: 4200 / 4000Gm NOS (OB) (M9) white lettering - oval gray plates (6V 12AT7 with shield)
1 6DT8 $10.00 GE 110% / 110% 4100: 4400 / 4000Gm NOS (OB) (M9) white lettering - oval gray plates (6V 12AT7 with shield)
1 6DT8 $10.00 GE 110% / 110% 4400: 4600 / 4000Gm NOS (OB) (M9) white lettering - oval gray plates (6V 12AT7 with shield)
1 6DT8 $10.00 GE 110% / 110% 4200: 4400 / 4000Gm NOS (OB) (M9) white lettering - oval gray plates (6V 12AT7 with shield)
1 6DT8 $10.00 GE 110% / 110% 4000: 4000 / 4000Gm NOS (OB) (M9) white lettering - oval gray plates (6V 12AT7 with shield)
1 6DT8 $10.00 GE 110% / 110% 4000: 4500 / 4000Gm NOS (OB) (M9) white lettering - oval gray plates (6V 12AT7 with shield)
1 6DT8 $10.00 GE 110% / 100% 4200: 4200 / 4000Gm NOS (OB) (M9) white lettering - oval gray plates (6V 12AT7 with shield)
1 6DT8 $10.00 GE 100% / 110% 4200: 4300 / 4000Gm NOS (OB) (M9) white lettering - oval gray plates (6V 12AT7 with shield)
1 6DT8 $10.00 GE 100% / 110% 4000: 4400 / 4000Gm NOS (OB) (M9) white lettering - oval gray plates (6V 12AT7 with shield)
1 6DT8 $10.00 Magnavox 140% / 140% 5400: 5400 / 4000Gm NOS (OB) (M9) oval black plates (6V 12AT7 with shield)
1 6DT8 $10.00 Olympic 120% / 120% 4600: 5000 / 4000Gm NOS (OB) (M9) rectangular black plates (6V 12AT7 with shield)
1 6DT8 $10.00 Sylvania 120% / 120% 4500: 4800 / 4000Gm NOS (OB) (M9) yellow lettering - oval black plates (6V 12AT7 with shield)
1 6DT8 $10.00 Sylvania 115% / 120% 4200: 4400 / 4000Gm NOS (OB) (M9) yellow lettering - oval black plates (6V 12AT7 with shield)
1 6DT8 $5.00 RCA 125% / 120% 5200: 5000 / 4000Gm used (wb) (M9) oval black plates (6V 12AT7 with shield)
1 6DT8 $5.00 RCA 130% / 130% 5800: 5800 / 4000Gm used (wb) (M9) oval black plates (6V 12AT7 with shield)
1 6DT8 $5.00 RCA 110% / 130% 4000: 4800 / 4000Gm used (rb) (M9) red lettering - rectangular gray plates (6V 12AT7 with shield)
1 6DT8 $5.00 GE 110% / 110% 4300: 4400 / 4000Gm used (rb) (M9) white lettering - oval gray plates (6V 12AT7 with shield)
1 6DT8 $4.00 Sylvania 110% / 100% 4000: 3800 / 4000Gm used (OB) (M9) yellow - rectangular gray plates (6V 12AT7 with shield)
1 6DT8 $4.00 RCA 100% / 120% 4000: 4300 / 4000Gm used (rb) (M9) red lettering - rectangular gray plates (6V 12AT7 with shield)
1 6DT8 $4.00 RCA 100% / 100% 3900: 4000 / 4000Gm used (rb) (M9) red lettering - oval black plates (6V 12AT7 with shield)
1 6DT8 $4.00 RCA 110% / 100% 4400: 4100 / 4000Gm used (rb) (M9) white lettering - oval black plates (6V 12AT7 with shield)
1 6DT8 $4.00 RCA 100% / 120% 4200: 4600 / 4000Gm used (rb) (M9) red lettering - rectangular gray plates (6V 12AT7 with shield)
1 6DT8 $4.00 westinghouse 100% / 110% 3700: 4200 / 4000Gm used (ob) (M9) oval black plates (6V 12AT7 with shield)
1 6DT8 $4.00 GE 100% / 100% 4200: 4200 / 4000Gm used (rb) (M9) white lettering - oval gray plates (6V 12AT7 with shield)
1 6DT8 $3.00 RCA 100% / 90% 4200: 4000 / 4000Gm used (rb) (M9) red lettering - oval black plates (6V 12AT7 with shield)
1 6DT8 $3.00 RCA 95% / 100% 4100: 4200 / 4000Gm used (rb) (M9) red lettering - oval black plates (6V 12AT7 with shield)
1 6DT8 $3.00 RCA 100% / 95% 4000: 3900 / 4000Gm used (rb) (M9) red lettering - oval black plates (6V 12AT7 with shield)
1 6DT8 $3.00 RCA 90% / 90% 3700: 3600 / 4000Gm used (rb) (M9) red lettering - oval black plates (6V 12AT7 with shield)
1 6DT8 $3.00 RCA 110% / 90% 4200: 3300 / 4000Gm used (rb) (M9) red lettering - oval gray plates (6V 12AT7 with shield)
1 6DT8 $3.00 Olympic 120% / 90% 4600: 4200 / 4000Gm used (rb) (M9) oval gray plates (6V 12AT7 with shield)
1 6DT8 $3.00 GE 90% / 100% 3800: 3800 / 4000Gm used (rb) (M9) white lettering - oval gray plates (6V 12AT7 with shield)
1 6DT8 $3.00 GE 110% / 90% 4400: 3800 / 4000Gm used (rb) (M9) white lettering - oval gray plates (6V 12AT7 with shield)
1 6DT8 $3.00 unknown 120% / 130% 4200: 4400 / 4000Gm used (rb) (M9) rectangular gray plates (6V 12AT7 with shield)
1 6DT8 $3.00 unknown 120% / 120% 4700: 4800 / 4000Gm used (rb) (M9) oval black plates (6V 12AT7 with shield)
1 6DT8 $3.00 unknown 120% / 125% 4300: 4500 / 4000Gm used (rb) (M9) rectangular gray plates (6V 12AT7 with shield)
1 6DT8 $2.00 unknown 90% / 90% 3500: 3700 / 4000Gm used (rb) (M9) oval black plates (6V 12AT7 with shield)
1 6DT8 $2.00 unknown 90% / 90% 3700: 2200 / 4000Gm used (rb) (M9) oval black plates (6V 12AT7 with shield)
1 6EU7 $30.00 Sylvania 140% / 140% 2000: 2000 / 1250Gm NOS (OB) (M9) square gray plates
1 6EU7 $15.00 GE 120% / 115% 1350: 1300 / 1250Gm used (wb) (M9) square gray plates
1 6EU7 $15.00 GE 110% / 130% 1300: 1450 / 1250Gm used (wb) (M9) square gray plates
1 6EU7 $15.00 GE 115% / 115% 1250: 1250 / 1250Gm used (wb) (M9) square gray plates
1 6EU7 $5.00 RCA 85% / 100% 850: 1000 / 1250Gm used (rb) (M9) retangular ribbed gray plates
1 6EV7 $10.00 Amperex 110% / 110% 4000: 4000 / 4000Gm NOS (OB) (M9) retangular ribbed gray plates - top getter
1 6EV7 $10.00 Tung-Sol 110% / 120% 4000: 4300 / 4000Gm NOS (OB) (M9) retangular ribbed gray plates - top getter
1 6EV7 $10.00 Tung-Sol 115% / 120% 4300: 4500 / 4000Gm NOS (OB) (M9) retangular ribbed gray plates - top getter
1 6EV7 $10.00 RCA 110% / 110% 4000: 4000 / 4000Gm NOS (OB) (M9) retangular ribbed gray plates
1 6EV7 $10.00 RCA 115% / 115% 4000: 4000 / 4000Gm NOS (OB) (M9) retangular ribbed gray plates - red letters
1 6EV7 $10.00 RCA 110% / 110% 4000: 4000 / 4000Gm NOS (OB) (M9) retangular ribbed gray plates - red letters
1 6EV7 $10.00 RCA 120% / 125% 4400: 4500 / 4000Gm NOS (OB) (M9) retangular ribbed gray plates - red letters
1 6EV7 $10.00 RCA 120% / 120% 4200: 4300 / 4000Gm NOS (OB) (M9) retangular ribbed gray plates - red letters
1 6EV7 $10.00 RCA 115% / 125% 4200: 4600 / 4000Gm NOS (OB) (M9) retangular ribbed gray plates - red letters
1 6EV7 $10.00 Westinghouse 105% / 110% 4200: 4000 / 4000Gm NOS (OB) (M9) retangular ribbed gray plates
1 6EV7 $10.00 Motorola 120% / 125% 4400: 4500 / 4000Gm NOS (OB) (M9) retangular ribbed gray plates - top getter
1 6EV7 $10.00 Zenith 135% / 125% 5000: 4600 / 4000Gm NOS (OB) (M9) retangular ribbed gray plates - top getter
1 6EV7 $10.00 Zenith 115% / 115% 4600: 4800 / 4000Gm NOS (wb) (M9) retangular ribbed gray plates - top getter
1 6EV7 $10.00 Sylvania 110% / 125% 4000: 4400 / 4000Gm NOS (OB) (M9) retangular ribbed gray plates - top getter - yellow lettering
1 6EV7 $10.00 ITT 130% / 130% 4200: 4200 / 4000Gm NOS (OB) (M9) retangular ribbed gray plates - side getter
1 6EV7 $10.00 GE 120% / 115% 4200: 4000 / 4000Gm NOS (OB) (M9) retangular ribbed gray plates - top getter - white lettering
1 6EV7 $10.00 GE 120% / 115% 4200: 4000 / 4000Gm NOS (OB) (M9) retangular ribbed gray plates - top getter - white lettering
1 6EV7 $10.00 GE 110% / 120% 4000: 4200 / 4000Gm NOS (OB) (M9) retangular ribbed gray plates - top getter - white lettering
1 6EV7 $10.00 GE 120% / 110% 4200: 4200 / 4000Gm NOS (OB) (M9) retangular ribbed gray plates - top getter - torn box flap
1 6EV7 $10.00 Procomm 150% / 150% 6500: 6750 / 4000Gm NOS (OB) (M9) short square gray plates - top getter
1 6EV7 $10.00 Procomm 150% / 150% 6250: 6000 / 4000Gm NOS (wb) (M9) retangular ribbed gray plates - top getter
1 6EV7 $8.00 RCA 120% / 120% 5000: 4900 / 4000Gm NOS (OB) (M9) retangular ribbed gray plates - red letters - water damaged box
1 6EV7 $8.00 RCA 110% / 110% 4100: 4100 / 4000Gm NOS (OB) (M9) retangular ribbed gray plates - red letters - water damaged box
1 6EV7 $8.00 RCA 110% / 110% 4100: 4100 / 4000Gm NOS (OB) (M9) retangular ribbed gray plates - red letters - water damaged box
1 6EV7 $5.00 RCA 115% / 100% 4600: 4100 / 4000Gm used (OB) (M9) retangular ribbed gray plates - top getter - red letters
1 6EV7 $5.00 RCA 105% / 110% 4100: 4300 / 4000Gm used (OB) (M9) retangular ribbed gray plates - top getter - red letters
1 6EV7 $5.00 RCA 100% / 110% 4000: 4100 / 4000Gm used (OB) (M9) retangular ribbed gray plates - top getter - red letters
1 6EV7 $5.00 RCA 115% / 110% 4500: 4300 / 4000Gm used (rb) (M9) retangular ribbed gray plates - top getter - red letters
1 6EV7 $5.00 RCA 110% / 110% 4800: 4900 / 4000Gm used (rb) (M9) retangular ribbed gray plates - top getter - red letters
1 6EV7 $5.00 GE 120% / 120% 4000: 4000 / 4000Gm used (rb) (M9) retangular ribbed gray plates - top getter - white letters
1 6EV7 $5.00 RCA 125% / 95% 3700: 3600 / 4000Gm used (OB) (M9) retangular ribbed gray plates - top getter - red letters
1 6EV7 $5.00 RCA 110% / 100% 3900: 3600 / 4000Gm used (OB) (M9) retangular ribbed gray plates - top getter - red letters
1 6EV7 $5.00 RCA 100% / 110% 3500: 3600 / 4000Gm used (OB) (M9) retangular ribbed gray plates - top getter
1 6EV7 $5.00 RCA 100% / 100% 4500: 4500 / 4000Gm used (rb) (M9) retangular ribbed gray plates - top getter
1 6EV7 $4.00 RCA 90% / 100% 3600: 3800 / 4000Gm used (rb) (M9) retangular ribbed gray plates - top getter - red letters
1 6EV7 $4.00 Westinghouse 90% / 90% 3800: 3800 / 4000Gm used (rb) (M9) retangular ribbed gray plates - top getter
1 6EV7 $4.00 unknown 110% / 105% 3700: 3600 / 4000Gm used (rb) (M9) retangular ribbed gray plates
1 6045 $10.00 Sylvania 140% / 120% 7500: 4400 / 3000Gm NOS (OB) (M9) special 6J6 (completely separate elements)
1 6045 $10.00 Sylvania 130% / 130% 8000: 4400 / 3000Gm NOS (OB) (M9) special 6J6 (completely separate elements)
1 6101 $2.00 RCA 110% / 110% 4700: 3800 / 3000Gm NOS (OB) (M9) special 6J6 - white lettering - USAF
1 6101 $2.00 RCA 110% / 110% 4400: 4000 / 3000Gm NOS (OB) (M9) special 6J6 - white lettering
1 6101 $2.00 Westinghouse 140% / 120% 5200: 4500 / 3000Gm NOS (OB) (M9) special 6J6
1 6101 $1.00 RCA 100% / 140% 4400: 3200 / 3000Gm used (rb) (M9) special 6J6 - white lettering
1 6101 $1.00 Westinghouse 110% / 100% 3800: 3800 / 3000Gm used (rb) (M9) special 6J6
1 ECC91 / 6J6 $10.00 Amperex 120% / 140% 3800: 5000 / 3000Gm NOS (OB) (M9) England - Bugle Boy
1 ECC91 / 6J6 $6.00 Amperex 120% / 130% 4100: 5600 / 3000Gm NOS (OB) (M9) England
1 ECC91 / 6J6 $6.00 Amperex 120% / 140% 4000: 6000 / 3000Gm NOS (OB) (M9) England
1 ECC91 / 6J6 $6.00 Amperex 120% / 120% 3800: 5000 / 3000Gm NOS (OB) (M9) England
1 ECC91 / 6J6 $6.00 Amperex 120% / 110% 5500: 4400 / 3000Gm NOS (OB) (M9) England
1 6J6-WB $5.00 RCA 120% / 130% 4000: 5800 / 3000Gm NOS (OB) (M9) green lettering - JAN
1 6J6-WB $5.00 RCA 110% / 140% 3600: 4500 / 3000Gm NOS (OB) (M9) green lettering - JAN
1 6J6-WB $5.00 RCA 110% / 130% 3800: 5800 / 3000Gm NOS (OB) (M9) green lettering - JAN
1 6J6-WB $5.00 RCA 110% / 130% 3500: 5400 / 3000Gm NOS (OB) (M9) green lettering - JAN
1 6J6-WB $5.00 RCA 110% / 110% 3600: 5200 / 3000Gm NOS (OB) (M9) green lettering - JAN
1 6J6 $2.00 United Electron 110% / 110% 3800: 4400 / 3000Gm NOS (OB) (M9)
1 6KN8 / 6RHH8 $15.00 RCA 110% / 100% 12000: 10000 / 10000Gm NOS (OB) (M9) ---
1 6KN8 / 6RHH8 $15.00 GE 110% / 130% 11500: 12500 / 10000Gm NOS (OB) (M9) ---
1 407A $5.00 Westinghouse 115% / 125% 6500: 7000 / 5500Gm used (rb) (M9)
1 396A $50.00 Western Electric 120% / 120% 6000: 6000 / 5000Gm NOS (M9) 6813 date code
1 5670 $10.00 Ken-Rad 150% / 140% 6750: 6000 / 5000Gm NOS (ob) (M9) (5670/2C51/396A)
1 5670 $10.00 GE 140% / 140% 6000: 6000 / 5000Gm NOS (ob) (M9) (5670/2C51/396A)
1 5670WA $10.00 GE 140% / 140% 5500: 6000 / 5000Gm NOS (ob) (M9) (5670/2C51/396A)
1 5670WA $10.00 GE 120% / 120% 5000: 5000 / 5000Gm NOS (ob) (M9) (5670/2C51/396A)
1 5670WA $10.00 GE 130% / 120% 5000: 5500 / 5000Gm NOS (ob) (M9) (5670/2C51/396A)
1 5670WA $10.00 GE 130% / 130% 5500: 5500 / 5000Gm NOS (ob) (M9) (5670/2C51/396A)
1 5670WA $5.00 GE 120% / 130% 4500: 5500 / 5000Gm used (ob) (M9) (5670/2C51/396A)
1 5670WA $5.00 GE 120% / 120% 5000: 5000 / 5000Gm used (ob) (M9) (5670/2C51/396A)
1 5670WA $5.00 GE 140% / 140% 5500: 5500 / 5000Gm used (ob) (M9) (5670/2C51/396A)
1 5670WA $5.00 GE 120% / 130% 4750: 5000 / 5000Gm used (rb) (M9) (5670/2C51/396A)
1 5670WA $5.00 GE 110% / 130% 4500: 5000 / 5000Gm used (rb) (M9) (5670/2C51/396A)
1 5670WA $5.00 GE 120% / 125% 5000: 5250 / 5000Gm used (rb) (M9) (5670/2C51/396A)
1 5670W $5.00 GE 120% / 100% 5000: 4800 / 5000Gm used (rb) (M9) (5670/2C51/396A) JAN
1 5670W $5.00 GE 140% / 140% 6000: 6000 / 5000Gm used (L) (M9) (5670/2C51/396A) - green
1 5670W $5.00 GE 130% / 140% 5400: 5800 / 5000Gm used (L) (M9) (5670/2C51/396A) - green
1 5670W $5.00 GE 140% / 130% 5600: 5000 / 5000Gm used (L) (M9) (5670/2C51/396A) - green
1 5670W $5.00 GE 140% / 125% 6000: 6000 / 5000Gm used (L) (M9) (5670/2C51/396A) - green
1 5670W $5.00 GE 130% / 130% 5400: 5200 / 5000Gm used (L) (M9) (5670/2C51/396A) - green
1 5670 $4.00 GE 120% / 120% 5000: 5250 / 5000Gm used (ob) (M9) (5670/2C51/396A)
1 5670 $4.00 GE 140% / 140% 6000: 6750 / 5000Gm used (ob) (M9) (5670/2C51/396A)
1 5670 $4.00 GE 110% / 100% 4750: 4500 / 5000Gm used (ob) (M9) (5670/2C51/396A)
1 5670 $4.00 GE 140% / 140% 5500: 5500 / 5000Gm used (ob) (M9) (5670/2C51/396A)
1 5670 $4.00 GE 130% / 110% 5750: 5000 / 5000Gm used (ob) (M9) (5670/2C51/396A)
1 5670 $4.00 GE 130% / 130% 6000: 6000 / 5000Gm used (ob) (M9) (5670/2C51/396A)
1 5670 $4.00 GE 120% / 130% 5000: 5500 / 5000Gm used (ob) (M9) (5670/2C51/396A)
1 5670 $4.00 GE 110% / 110% 4500: 5250 / 5000Gm used (ob) (M9) (5670/2C51/396A)
1 5670 $4.00 GE 140% / 140% 6500: 7000 / 5000Gm used (rb) (M9) (5670/2C51/396A)
1 5670 $4.00 GE 130% / 140% 5800: 6000 / 5000Gm used (L) (M9) (5670/2C51/396A)
1 5670 $4.00 GE 115% / 120% 5000: 5200 / 5000Gm used (L) (M9) (5670/2C51/396A)
1 5670 $4.00 GE 130% / 130% 5300: 5600 / 5000Gm used (L) (M9) (5670/2C51/396A)
1 5670 $4.00 GE 140% / 130% 5200: 5700 / 5000Gm used (L) (M9) (5670/2C51/396A)
1 5670 $4.00 GE 120% / 110% 5300: 4800 / 5000Gm used (L) (M9) (5670/2C51/396A)
1 5670 $4.00 GE 110% / 115% 5000: 4900 / 5000Gm used (L) (M9) (5670/2C51/396A)
1 5670 $4.00 GE 110% / 100% 4500: 4500 / 5000Gm used (L) (M9) (5670/2C51/396A)
1 5670 $4.00 GE 120% / 140% 5000: 6500 / 5000Gm used (L) (M9) (5670/2C51/396A)
1 5670 $4.00 GE 120% / 115% 6000: 5500 / 5000Gm used (L) (M9) (5670/2C51/396A)
1 5670 $3.00 unknown 130% / 140% 6000: 6500 / 5000Gm used (rb) (M9) (5670/2C51/396A) ---
1 5670 $3.00 unknown 130% / 120% 5500: 5500 / 5000Gm used (rb) (M9) (5670/2C51/396A) ---
1 5670 $3.00 unknown 105% / 110% 4500: 4500 / 5000Gm used (rb) (M9) (5670/2C51/396A) ---
1 5670 $3.00 unknown 100% / 100% 4500: 5000 / 5000Gm used (rb) (M9) (5670/2C51/396A) ---
1 5670 $3.00 unknown 110% / 110% 5750: 5250 / 5000Gm used (rb) (M9) (5670/2C51/396A) ---
1 5670 $3.00 unknown 110% / 110% 5800: 5600 / 5000Gm used (L) (M9) (5670/2C51/396A)
1 5670 $3.00 unknown 130% / 140% 5600: 6000 / 5000Gm used (L) (M9) (5670/2C51/396A)
1 5670 $3.00 unknown 120% / 130% 5400: 5400 / 5000Gm used (L) (M9) (5670/2C51/396A)
1 5670 $2.00 unknown 90% / 100% 4500: 5000 / 5000Gm used (L) (M9) (5670/2C51/396A)
1 5670 $2.00 unknown 90% / 90% 4800: 4800 / 5000Gm used (L) (M9) (5670/2C51/396A)
1 5656 $7.50 Raytheon 90% / 90% --- used (wb) (M9) ---
1 5656 $7.50 Raytheon 140% / 120% --- used (wb) (M9) ---
1 5656 $7.50 Raytheon 90% / 105% --- used (wb) (M9) ---
1 5656 $7.50 Raytheon 120% / 140% --- used (rb) (M9) ---
1 5656 $7.50 Raytheon 120% / 140% --- used (L) (M9) US Navy
1 5656 $7.50 Raytheon 120% / 110% --- used (L) (M9) ---
1 5656 $7.50 Raytheon 110% / 100% --- used (L) (M9) ---
1 5656 $7.50 Raytheon 100% / 100% --- used (L) (M9) ---
1 5656 $7.50 Raytheon 120% / 115% --- used (L) (M9) ---
1 6099 $15.00 Sylvania 140% / 140% 5000: 6000 / 3000Gm NOS (OB) (M7) (special balanced 6J6WA for US Air Force)
1 6414 / 0528 $5.00 Raytheon 105% / 100% 4400: 4200 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - gray plates
1 6414 / 0528 $5.00 Raytheon 100% / 100% 4100: 4100 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - gray plates
1 6414 / 0528 $4.00 Raytheon 95% / 90% 3400: 3200 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - gray plates
1 6414 / 0528 $4.00 Raytheon 90% / 90% 3500: 3900 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - gray plates
1 6414 / 0528 $4.00 Raytheon 90% / 90% 3000: 3500 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - gray plates
1 6414 / 0528 $4.00 Raytheon 90% / 105% 4400: 4900 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - gray plates
1 6414 / 0528 $4.00 Raytheon 90% / 90% 4100: 4000 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - gray plates
1 6414 / 0528 $4.00 Raytheon 90% / 110% 4200: 5000 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - gray plates
1 6414 / 0528 $4.00 Raytheon 90% / 95% 4000: 4500 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - gray plates
1 6414 / 0528 $4.00 Raytheon 90% / 120% 4000: 5000 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - gray plates
1 6414 / 0528 $4.00 Raytheon 90% / 90% 4300: 3500 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - gray plates
1 6414 / 0528 $7.50 Raytheon 100% / 105% 5100: 5400 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - black plates
1 6414 / 0528 $5.00 Raytheon 100% / 95% 5300: 4900 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - black plates
1 6414 / 0528 $4.00 Raytheon 90% / 100% 5000: 5300 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - black plates
1 6414 / 0528 $4.00 Raytheon 90% / 90% 3500: 3500 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - black plates
1 6414 / 0528 $4.00 Raytheon 110% / 90% 5500: 4500 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - black plates
1 6414 / 0528 $4.00 Raytheon 90% / 90% 3200: 3300 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - black plates
1 6414 / 0528 $4.00 Raytheon 90% / 90% 4200: 4400 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - black plates
1 6414 / 0528 $4.00 Raytheon 100% / 90% 4000: 3600 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - black plates
1 6414 / 0528 $4.00 Raytheon 90% / 90% 3400: 3500 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - black plates
1 6414 / 0528 $4.00 Raytheon 90% / 100% 4200: 4300 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - black plates
1 6414 / 0528 $4.00 Raytheon 90% / 85% 5000: 4300 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - black plates
1 6414 / 0528 $7.50 GE 130% / 120% 5000: 5000 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - gray plates
1 6414 / 0528 $7.50 GE 120% / 120% 5800: 5800 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - gray plates
1 6414 / 0528 $5.00 GE 100% / 120% 4500: 4900 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - gray plates
1 6414 / 0528 $5.00 GE 110% / 110% 4300: 4400 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - gray plates
1 6414 / 0528 $5.00 GE 110% / 120% 5200: 5200 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - gray plates
1 6414 / 0528 $5.00 GE 110% / 110% 4600: 4800 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - gray plates
1 6414 / 0528 $5.00 GE 100% / 110% 5000: 4800 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - gray plates
1 6414 / 0528 $5.00 GE 100% / 100% 5000: 5200 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - gray plates
1 6414 / 0528 $5.00 GE 100% / 100% 5200: 5100 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - gray plates
1 6414 / 0528 $4.00 GE 90% / 95% 5000: 4600 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - gray plates
1 6414 / 0528 $4.00 GE 90% / 90% 5000: 4700 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - gray plates
1 6414 / 0528 $4.00 GE 90% / 110% 3800: 4000 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - gray plates
1 6414 / 0528 $4.00 GE 100% / 90% 4800: 4400 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - gray plates
1 6414 / 0528 $4.00 GE 90% / 120% 4000: 3600 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - gray plates
1 6414 / 0528 $4.00 GE 90% / 100% 5200: 5500 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - gray plates
1 6414 / 0528 $4.00 GE 90% / 100% 4500: 4800 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - gray plates
1 6414 / 0528 $4.00 GE 100% / 90% 4400: 4300 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - gray plates
1 6414 / 0528 $4.00 GE 90% / 90% 5000: 5000 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - gray plates
1 6414 / 0528 $4.00 GE 90% / 100% 5000: 5100 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - gray plates
1 6414 / 0528 $4.00 GE 90% / 100% 3500: 3800 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - gray plates
1 6414 / 0528 $4.00 GE 90% / 95% 4200: 4700 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - gray plates
1 6414 / 0528 $4.00 GE 90% / 90% 4700: 4800 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - gray plates
1 6414 / 0528 $4.00 GE 90% / 85% 4600: 4600 / 4100Gm used (L) (M9) IBM 3000528 - tripple mica - gray plates
1 6829 $35.00 GE 120% / 130% 4000 / 4400Gm NOS (OB) (M9) (cat:A23) tripple mica - rectangluar gray plates - white lettering
1 6829 $35.00 GE 115% / 120% 4000 / 4200Gm NOS (rb) (M9) (cat:A23) tripple mica - rectangluar gray plates - white lettering
1 6829 $35.00 GE 100% / 110% 3800 / 4100Gm NOS (rb) (M9) (cat:A23) tripple mica - rectangluar gray plates - red lettering

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