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Audio Tube Store

MDB Ventures Home

Don't forget to visit our
Discount Bargain Packs
and
Bargain Bin
for more savings!

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 4ES8 / XCC189 $2.00 Sylvania 110% / 110% 9000:8000 / 8000Gm used (L) (M9) (cat:au-28)
1 4ES8 / XCC189 $1.00 unknown 90% / 90% 5500:4500 / 8000Gm used (L) (M9) (cat:au-28)
1 6GU7 $15.00 Amperex 120% / 110% 3500:3200 / 3100Gm NOS (OB) (M9) rectangular ribbed gray plates (cat:au-24)
1 6GU7 $12.00 RCA 130% / 140% 3800:4100 / 3100Gm NOS (OB) (M9) retangular ribbed gray plates - red letters - grid 'c' clips (cat:au-28)
1 6GU7 $12.00 RCA 110% / 120% 3200:3700 / 3100Gm NOS (OB) (M9) retangular ribbed gray plates - red letters - grid 'c' clips (cat:au-28)
1 6GU7 $12.00 RCA 115% / 120% 3600:3800 / 3100Gm NOS (OB) (M9) retangular ribbed gray plates - red letters - grid 'c' clips (cat:au-28)
1 6GU7 $10.00 RCA 120% / 120% 3800:3800 / 3100Gm NOS (OB) (M9) retangular ribbed gray plates - red letters (cat:au-28)
1 6GU7 $10.00 RCA 120% / 120% 3700:3800 / 3100Gm NOS (OB) (M9) retangular ribbed gray plates - red letters (cat:au-28)
1 6GU7 $10.00 RCA 120% / 120% 3600:3800 / 3100Gm NOS (OB) (M9) retangular ribbed gray plates - red letters (cat:au-28)
1 6GU7 $10.00 RCA 120% / 120% 3500:3600 / 3100Gm NOS (OB) (M9) retangular ribbed gray plates - red letters (cat:au-28)
1 6GU7 $10.00 RCA 120% / 120% 3600:3600 / 3100Gm NOS (OB) (M9) retangular ribbed gray plates - red letters (cat:au-28)
1 6GU7 $10.00 RCA 120% / 120% 3600:3600 / 3100Gm NOS (OB) (M9) retangular ribbed gray plates - red letters (cat:au-28)
1 6GU7 $10.00 RCA 120% / 120% 3600:3800 / 3100Gm NOS (OB) (M9) retangular ribbed gray plates - red letters (cat:au-28)
1 6GU7 $10.00 RCA 120% / 120% 3800:3900 / 3100Gm NOS (OB) (M9) retangular ribbed gray plates - red letters (cat:au-28)
1 6GU7 $10.00 RCA 130% / 130% 4300:4300 / 3100Gm NOS (OB) (M9) retangular ribbed gray plates - red letters (cat:au-28)
1 6GU7 $10.00 RCA 130% / 125% 4000:3800 / 3100Gm NOS (OB) (M9) retangular ribbed gray plates - red letters (cat:au-28)
1 6GU7 $10.00 RCA 120% / 130% 4000:4500 / 3100Gm NOS (OB) (M9) retangular ribbed gray plates - red letters (cat:au-28)
1 6GU7 $10.00 RCA 110% / 120% 3400:3800 / 3100Gm NOS (OB) (M9) retangular ribbed gray plates - red letters (cat:au-28)
1 6GU7 $10.00 RCA 110% / 120% 3600:3800 / 3100Gm NOS (OB) (M9) retangular ribbed gray plates - red letters (cat:au-28)
1 6GU7 $10.00 RCA 110% / 130% 3600:4000 / 3100Gm NOS (OB) (M9) retangular ribbed gray plates - red letters (cat:au-28)
1 6GU7 $10.00 RCA 120% / 110% 3600:3300 / 3100Gm NOS (OB) (M9) retangular ribbed gray plates - red letters (cat:au-28)
1 6GU7 $10.00 RCA 120% / 115% 3800:3800 / 3100Gm NOS (OB) (M9) retangular ribbed gray plates - red letters (cat:au-28)
1 6GU7 $10.00 RCA 120% / 125% 3800:3900 / 3100Gm NOS (OB) (M9) retangular ribbed gray plates - red letters (cat:au-28)
1 6GU7 $10.00 RCA 120% / 130% 3200:3600 / 3100Gm NOS (OB) (M9) retangular ribbed gray plates - red letters (cat:au-28)
1 6GU7 $10.00 Westinghouse 120% / 120% 3400:3600 / 3100Gm NOS (OB) (M9) rectangular ribbed gray plates (cat:au-28)
1 6GU7 $7.50 Westinghouse 100% / 110% 3200:3400 / 3100Gm NOS (OB) (M9) short square gray plates (cat:au-28)
1 6GU7 $7.50 Westinghouse 140% / 135% 4500:4300 / 3100Gm NOS (OB) (M9) short square gray plates (cat:au-28)
1 6GU7 $7.50 Westinghouse 130% / 135% 4200:4300 / 3100Gm NOS (OB) (M9) short square gray plates (cat:au-28)
1 6GU7 $7.50 Westinghouse 115% / 110% 3600:3500 / 3100Gm NOS (OB) (M9) short square gray plates (cat:au-28)
1 6GU7 $7.50 Magnavox 115% / 115% 3500:3600 / 3100Gm NOS (OB) (M9) short square gray plates (cat:au-28)
1 6GU7 $7.50 Magnavox 130% / 120% 4000:3800 / 3100Gm NOS (OB) (M9) short square gray plates (cat:au-28)
1 6GU7 $7.50 Magnavox 125% / 140% 4000:4400 / 3100Gm NOS (OB) (M9) short square gray plates (cat:au-28)
1 6GU7 $7.50 Magnavox 120% / 120% 3700:3600 / 3100Gm NOS (OB) (M9) short square gray plates (cat:au-28)
1 6GU7 $8.00 Magnavox 110% / 110% 3200:3200 / 3100Gm NOS (OB) (M9) long square gray plates (cat:au-28)
1 6GU7 $8.00 Raytheon 130% / 130% 4100:4300 / 3100Gm NOS (OB) (M9) short square gray plates (cat:au-28)
1 6GU7 $8.00 Raytheon 130% / 120% 4000:3800 / 3100Gm NOS (OB) (M9) short square gray plates (cat:au-28)
1 6GU7 $7.50 Lindal 120% / 110% 3800:3400 / 3100Gm NOS (OB) (M9) short square gray plates (cat:au-28)
1 6GU7 $7.50 Lindal 115% / 110% 3500:3300 / 3100Gm NOS (OB) (M9) short square gray plates (cat:au-28)
1 6GU7 $7.50 Lindal 110% / 110% 3400:3500 / 3100Gm NOS (OB) (M9) short square gray plates (cat:au-28)
1 6GU7 $7.50 Dumont 140% / 140% 4200:4200 / 3100Gm NOS (OB) (M9) long square gray plates (cat:au-28)
1 6GU7 $7.50 Dumont 120% / 150% 3800:4400 / 3100Gm NOS (OB) (M9) long square gray plates (cat:au-28)
1 6GU7 $7.50 Dumont 120% / 110% 3500:3400 / 3100Gm NOS (OB) (M9) long square gray plates (cat:au-28)
1 6GU7 $7.50 Allied 120% / 110% 3400:3300 / 3100Gm NOS (OB) (M9) short square gray plates (cat:au-28)
1 6GU7 $7.50 Realistic 110% / 110% 3500:3500 / 3100Gm NOS (OB) (M9) short square gray plates (cat:au-28)
1 6GU7 $8.00 Philco 110% / 110% 3300:3400 / 3100Gm NOS (OB) (M9) long square gray plates (cat:au-28)
1 6GU7 $7.50 GE 120% / 120% 3400:3400 / 3100Gm NOS (OB) (M9) short square gray plates - white letters (cat:au-28)
1 6GU7 $10.00 GE 125% / 120% 3700:3500 / 3100Gm NOS (OB) (M9) retangular ribbed gray plates - white letters (cat:au-28)
1 6GU7 $10.00 GE 120% / 120% 3400:3400 / 3100Gm NOS (OB) (M9) retangular ribbed gray plates - white letters (cat:au-28)
1 6GU7 $10.00 GE 130% / 125% 4200:4000 / 3100Gm NOS (OB) (M9) retangular ribbed gray plates - white letters (cat:au-28)
1 6GU7 $10.00 GE 120% / 115% 3500:3200 / 3100Gm NOS (OB) (M9) retangular ribbed gray plates - white letters (cat:au-28)
1 6GU7 $10.00 GE 125% / 125% 3900:4200 / 3100Gm NOS (OB) (M9) retangular ribbed gray plates - white letters (cat:au-28)
1 6GU7 $10.00 GE 125% / 125% 3800:3900 / 3100Gm NOS (OB) (M9) retangular ribbed gray plates - white letters (cat:au-28)
1 6GU7 $10.00 GE 110% / 110% 3300:3300 / 3100Gm NOS (OB) (M9) retangular ribbed gray plates - white letters (cat:au-28)
1 6GU7 $10.00 GE 115% / 125% 3200:3400 / 3100Gm NOS (OB) (M9) retangular ribbed gray plates - white letters (cat:au-28)
1 6GU7 $10.00 GE 130% / 130% 3900:3900 / 3100Gm NOS (OB) (M9) retangular ribbed gray plates - white letters (cat:au-28)
1 6GU7 $10.00 GE 120% / 120% 3600:3500 / 3100Gm NOS (OB) (M9) retangular ribbed gray plates - white letters (cat:au-28)
1 6GU7 $10.00 GE 125% / 120% 3900:3800 / 3100Gm NOS (OB) (M9) retangular ribbed gray plates - white letters (cat:au-28)
1 6GU7 $10.00 GE 135% / 130% 3800:3600 / 3100Gm NOS (OB) (M9) retangular ribbed gray plates - white letters (cat:au-28)
1 6GU7 $8.00 Sylvania 120% / 120% 3300:3200 / 3100Gm NOS (OB) (M9) square gray plates - yellow letters (cat:au-28)
1 6GU7 $8.00 Sylvania 120% / 110% 3500:3300 / 3100Gm NOS (OB) (M9) square gray plates - yellow letters (cat:au-28)
1 6GU7 $8.00 Sylvania 110% / 110% 3400:3500 / 3100Gm NOS (OB) (M9) square gray plates - yellow letters (cat:au-28)
1 6GU7 $8.00 Sylvania 120% / 120% 3400:3500 / 3100Gm NOS (OB) (M9) square gray plates - yellow letters (cat:au-28)
1 6GU7 $8.00 Sylvania 120% / 125% 3600:3600 / 3100Gm NOS (OB) (M9) square gray plates - yellow letters (cat:au-28)
1 6GU7 $8.00 Sylvania 130% / 120% 3700:3400 / 3100Gm NOS (OB) (M9) square gray plates - yellow letters (cat:au-28)
1 6GU7 $8.00 Sylvania 115% / 125% 3400:3900 / 3100Gm NOS (OB) (M9) square gray plates - yellow letters (cat:au-28)
1 6GU7 $8.00 Sylvania 130% / 130% 3800:3900 / 3100Gm NOS (OB) (M9) square gray plates - yellow letters (cat:au-28)
1 6GU7 $8.00 Sylvania 130% / 120% 3900:3700 / 3100Gm NOS (OB) (M9) square gray plates - yellow letters (cat:au-28)
1 6GU7 $8.00 Sylvania 130% / 130% 3900:3900 / 3100Gm NOS (OB) (M9) square gray plates - yellow letters (cat:au-28)
1 6GU7 $8.00 Sylvania 120% / 130% 3800:4000 / 3100Gm NOS (OB) (M9) square gray plates - yellow letters (cat:au-28)
1 6GU7 $8.00 Sylvania 120% / 130% 3500:3600 / 3100Gm NOS (OB) (M9) square gray plates - yellow letters (cat:au-28)
1 6GU7 $8.00 Sylvania 130% / 130% 4000:3800 / 3100Gm NOS (OB) (M9) square gray plates - yellow letters (cat:au-28)
1 6GU7 $8.00 Sylvania 120% / 120% 3300:3500 / 3100Gm NOS (OB) (M9) square gray plates - yellow letters (cat:au-28)
1 6GU7 $8.00 Sylvania 120% / 120% 3500:3500 / 3100Gm NOS (OB) (M9) square gray plates - yellow letters (cat:au-28)
1 6GU7 $8.00 Sylvania 120% / 120% 3300:3300 / 3100Gm NOS (OB) (M9) square gray plates - yellow letters (cat:au-28)
1 6GU7 $8.00 Sylvania 120% / 125% 3500:3500 / 3100Gm NOS (OB) (M9) square gray plates - yellow letters (cat:au-28)
1 6GU7 $8.00 Sylvania 140% / 130% 3600:3600 / 3100Gm NOS (OB) (M9) square gray plates - yellow letters (cat:au-28)
1 6GU7 $8.00 Sylvania 115% / 120% 3400:3500 / 3100Gm NOS (OB) (M9) square gray plates - yellow letters (cat:au-28)
1 6GU7 $8.00 Sylvania 110% / 130% 3200:3700 / 3100Gm NOS (OB) (M9) square gray plates - yellow letters (cat:au-28)
1 6GU7 $8.00 Sylvania 110% / 120% 3300:3500 / 3100Gm NOS (OB) (M9) square gray plates - yellow letters (cat:au-28)
1 6GU7 $8.00 Sylvania 130% / 125% 3800:3500 / 3100Gm NOS (OB) (M9) square gray plates - red letters (cat:au-28)
1 6GU7 $8.00 Sylvania 130% / 135% 4000:4100 / 3100Gm NOS (OB) (M9) square gray plates - red letters (cat:au-28)
1 6GU7 $8.00 Sylvania 130% / 120% 3600:3300 / 3100Gm NOS (OB) (M9) square gray plates - red letters (cat:au-28)
1 6GU7 $8.00 Sylvania 120% / 125% 3600:3600 / 3100Gm NOS (OB) (M9) square gray plates - red letters (cat:au-28)
1 6GU7 $8.00 Sylvania 110% / 120% 3400:3800 / 3100Gm NOS (OB) (M9) square gray plates - red letters (cat:au-28)
1 6GU7 $8.00 Sylvania 120% / 120% 3600:3600 / 3100Gm NOS (OB) (M9) square gray plates - green letters (cat:au-28)
1 6GU7 $5.00 Sylvania 115% / 105% 3100:2600 / 3100Gm used (OB) (M9) square gray plates - yellow letters (cat:au-28)
1 6GU7 $5.00 Magnavox 120% / 100% 3400:3000 / 3100Gm used (rb) (M9) rectangular ribbed gray plates - clear top - grid 'c' clips (cat:au-28)
1 6GU7 $5.00 GE 130% / 130% 3600:3800 / 3100Gm used (OB) (M9) square gray plates - white letters (cat:au-28)
1 6GU7 $5.00 RCA 130% / 125% 3300:3200 / 3100Gm used (OB) (M9) square gray plates - clear top - grid 'c' clips (cat:au-28)
1 6GU7 $6.00 RCA 100% / 110% 2600:3000 / 3100Gm used (OB) (M9) retangular ribbed gray plates - red letters - grid 'c' clips - clear top (cat:au-28)
1 6GU7 $6.00 RCA 120% / 100% 3200:2800 / 3100Gm used (OB) (M9) retangular ribbed gray plates - red letters - grid 'c' clips - clear top (cat:au-28)
1 6GU7 $5.00 RCA 100% / 100% 3100:3000 / 3100Gm used (rb) (M9) retangular ribbed gray plates - red letters - grid 'c' clips (cat:au-28)
1 6GU7 $5.00 RCA 100% / 100% 3000:3000 / 3100Gm used (OB) (M9) retangular ribbed gray plates - red letters - grid 'c' clips (cat:au-28)
1 6GU7 $5.00 RCA 120% / 130% 3600:3800 / 3100Gm used (OB) (M9) retangular ribbed gray plates - red letters (cat:au-28)
1 6GU7 $5.00 RCA 120% / 125% 3800:4000 / 3100Gm used (OB) (M9) retangular ribbed gray plates - red letters (cat:au-28)
1 6GU7 $5.00 RCA 115% / 130% 3500:3800 / 3100Gm used (OB) (M9) retangular ribbed gray plates - red letters (cat:au-28)
1 6GU7 $5.00 RCA 110% / 120% 3500:3800 / 3100Gm used (OB) (M9) retangular ribbed gray plates - red letters (cat:au-28)
1 6GU7 $5.00 RCA 110% / 115% 3200:3400 / 3100Gm used (OB) (M9) retangular ribbed gray plates - red letters (cat:au-28)
1 6GU7 $5.00 RCA 110% / 115% 3300:3400 / 3100Gm used (OB) (M9) retangular ribbed gray plates - red letters (cat:au-28)
1 6GU7 $5.00 RCA 100% / 105% 3000:3200 / 3100Gm used (OB) (M9) retangular ribbed gray plates - red letters (cat:au-28)
1 6GU7 $5.00 RCA 110% / 100% 3600:3100 / 3100Gm used (OB) (M9) retangular ribbed gray plates - red letters (cat:au-28)
1 6GU7 $5.00 RCA 100% / 100% 3400:3500 / 3100Gm used (OB) (M9) retangular ribbed gray plates - red letters (cat:au-28)
1 6GU7 $5.00 GE 120% / 120% 3700:3500 / 3100Gm used (rb) (M9) retangular ribbed gray plates (cat:au-28)
1 6GU7 $5.00 GE 125% / 110% 3700:3500 / 3100Gm used (rb) (M9) retangular ribbed gray plates (cat:au-28)
1 6GU7 $5.00 GE 120% / 110% 3500:3300 / 3100Gm used (rb) (M9) retangular ribbed gray plates (cat:au-28)
1 6GU7 $5.00 GE 110% / 110% 3400:3400 / 3100Gm used (rb) (M9) retangular ribbed gray plates (cat:au-28)
1 6GU7 $5.00 GE 105% / 120% 3600:4000 / 3100Gm used (rb) (M9) retangular ribbed gray plates (cat:au-28)
1 6GU7 $5.00 Dumont / Emerson 110% / 110% 3300:3300 / 3100Gm used (rb) (M9) retangular ribbed gray plates - grid 'c' clips (cat:au-28)
1 6GU7 $5.00 Packard Bell 100% / 100% 3000:3100 / 3100Gm used (rb) (M9) retangular ribbed gray plates - grid 'c' clips (cat:au-28)
1 6GU7 $4.00 unknown 120% / 120% 3400:3700 / 3100Gm used (OB) (M9) retangular ribbed gray plates - grid 'c' clips (cat:au-28)
1 6GU7 $4.00 unknown 110% / 110% 3400:3400 / 3100Gm used (rb) (M9) retangular ribbed gray plates - grid 'c' clips (cat:au-28)
1 6GU7 $3.00 unknown 100% / 90% 3100:2800 / 3100Gm used (rb) (M9) retangular ribbed gray plates (cat:au-28)
1 6GU7 $4.00 RCA 110% / 110% 3500:3500 / 3100Gm used (OB) (M9) square gray plates - red letters (cat:au-28)
1 6GU7 $4.00 RCA 95% / 100% 3000:3000 / 3100Gm used (OB) (M9) retangular ribbed gray plates - white letters (cat:au-28)
1 6GU7 $4.00 RCA 100% / 120% 3000:3300 / 3100Gm used (OB) (M9) retangular ribbed gray plates - red letters (cat:au-28)
1 6GU7 $5.00 RCA 120% / 110% 2900:2800 / 3100Gm used (rb) (M9) rectangular ribbed gray plates - clear top - grid 'c' clips (cat:au-28)
1 6GU7 $5.00 RCA 110% / 120% 2800:3200 / 3100Gm used (ob) (M9) rectangular ribbed gray plates - clear top - grid 'c' clips (cat:au-28)
1 6GU7 $5.00 RCA 130% / 120% 3400:3000 / 3100Gm used (rb) (M9) rectangular ribbed gray plates - clear top - grid 'c' clips (cat:au-28)
1 6GU7 $5.00 RCA 140% / 135% 4000:3900 / 3100Gm used (ob) (M9) rectangular ribbed gray plates - grid 'c' clips (cat:au-28)
1 6GU7 $5.00 RCA 120% / 110% 3500:3100 / 3100Gm used (ob) (M9) rectangular ribbed gray plates - grid 'c' clips (cat:au-28)
1 6GU7 $5.00 RCA 115% / 120% 3000:3200 / 3100Gm used (ob) (M9) rectangular ribbed gray plates (cat:au-28)
1 6GU7 $5.00 GE 110% / 110% 3000:3100 / 3100Gm used (ob) (M9) rectangular ribbed gray plates (cat:au-28)
1 6GU7 $5.00 GE 120% / 120% 3100:3100 / 3100Gm used (ob) (M9) rectangular ribbed gray plates (cat:au-28)
1 6GU7 $5.00 Curtis Mathis 120% / 120% 3200:3200 / 3100Gm used (rb) (M9) rectangular ribbed gray plates - grid 'c' clips (cat:au-28)
1 6GU7 $5.00 Curtis Mathis 120% / 120% 3700:3700 / 3100Gm used (rb) (M9) square gray plates (cat:au-28)
1 6GU7 $5.00 Magnavox 115% / 115% 3200:3200 / 3100Gm used (rb) (M9) squarre gray plates (cat:au-28)
1 6GU7 $5.00 Dumont 120% / 130% 3100:3400 / 3100Gm used (rb) (M9) rectangular ribbed gray plates (cat:au-28)
1 6GU7 $5.00 RCA 115% / 135% 3000:3600 / 3100Gm used (ob) (M9) rectangular ribbed gray plates (cat:au-28)
1 6GU7 $5.00 Sylvania 110% / 120% 3200:3400 / 3100Gm used (ob) (M9) square gray plates (cat:au-28)
1 6GU7 $5.00 unknown 120% / 130% 3500:3900 / 3100Gm used (rb) (M9) oval black plates (cat:au-28)
1 6GU7 $5.00 Packard Bell 105% / 130% 3000:3800 / 3100Gm used (L) (M9) rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u4)
1 6GU7 $5.00 Silvertone 110% / 120% 3100:3200 / 3100Gm used (L) (M9) rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u4)
1 6GU7 $5.00 Silvertone 120% / 130% 3200:3300 / 3100Gm used (L) (M9) rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u4)
1 6GU7 $5.00 Curtis Mathis 140% / 130% 3600:3300 / 3100Gm used (L) (M9) rectangular ribbed gray plates (cat:au-28 - u4)
1 6GU7 $5.00 Satchell Carlson 130% / 130% 3700:3800 / 3100Gm used (L) (M9) rectangular ribbed gray plates (cat:au-28 - u4)
1 6GU7 $5.00 GE 120% / 110% 3300:3100 / 3100Gm used (L) (M9) rectangular ribbed gray plates (cat:au-28 - u4)
1 6GU7 $5.00 GE 100% / 110% 2800:3000 / 3100Gm used (L) (M9) rectangular ribbed gray plates (cat:au-28 - u4)
1 6GU7 $4.00 Sylvania 90% / 140% 2500:3400 / 3100Gm used (L) (M9) rectangular ribbed gray plates (cat:au-28 - u4)
1 6GU7 $4.00 Admiral 120% / 90% 2500:2200 / 3100Gm used (L) (M9) rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u4)
1 6GU7 $5.00 RCA 130% / 130% 3100:3100 / 3100Gm used (L) (M9) rectangular ribbed gray plates - grid 'c' clips - clear top (cat:au-28 - u3)
1 6GU7 $5.00 RCA 130% / 120% 3200:2700 / 3100Gm used (L) (M9) red - rectangular ribbed gray plates - grid 'c' clips - clear top (cat:au-28 - u3)
1 6GU7 $5.00 RCA 105% / 120% 2800:3300 / 3100Gm used (L) (M9) red - rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u3)
1 6GU7 $5.00 RCA 130% / 100% 3800:3600 / 3100Gm used (L) (M9) red - rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u3)
1 6GU7 $5.00 RCA 120% / 130% 3200:3400 / 3100Gm used (L) (M9) red - rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u3)
1 6GU7 $5.00 RCA 100% / 120% 2200:2600 / 3100Gm used (L) (M9) red - rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u3)
1 6GU7 $5.00 RCA 120% / 100% 3100:2300 / 3100Gm used (L) (M9) red - rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u3)
1 6GU7 $5.00 RCA 100% / 100% 2700:2900 / 3100Gm used (L) (M9) red - rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u3)
1 6GU7 $5.00 RCA 120% / 100% 2800:2500 / 3100Gm used (L) (M9) red - rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u3)
1 6GU7 $5.00 RCA 115% / 130% 3100:3700 / 3100Gm used (L) (M9) red - rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u3)
1 6GU7 $5.00 RCA 110% / 130% 3100:3700 / 3100Gm used (L) (M9) rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u3)
1 6GU7 $5.00 RCA 110% / 100% 2200:1800 / 3100Gm used (L) (M9) red - rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u3)
1 6GU7 $5.00 RCA 110% / 130% 2400:3000 / 3100Gm used (L) (M9) red - rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u3)
1 6GU7 $5.00 RCA 120% / 110% 2900:2800 / 3100Gm used (L) (M9) rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u3)
1 6GU7 $5.00 RCA 100% / 100% 2200:2000 / 3100Gm used (L) (M9) red - rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u3)
1 6GU7 $5.00 RCA 120% / 120% 2800:2800 / 3100Gm used (L) (M9) red - rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u3)
1 6GU7 $5.00 RCA 100% / 100% 2200:2200 / 3100Gm used (L) (M9) red - rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u3)
1 6GU7 $5.00 RCA 110% / 115% 2700:2800 / 3100Gm used (L) (M9) red - rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u3)
1 6GU7 $5.00 RCA 120% / 130% 3000:3200 / 3100Gm used (L) (M9) red - rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u3)
1 6GU7 $5.00 RCA 115% / 110% 2800:2800 / 3100Gm used (L) (M9) red - rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u3)
1 6GU7 $5.00 RCA 100% / 110% 2800:2400 / 3100Gm used (L) (M9) rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u3)
1 6GU7 $5.00 RCA 100% / 100% 2600:2500 / 3100Gm used (L) (M9) red - rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u3)
1 6GU7 $5.00 RCA 110% / 130% 3100:3500 / 3100Gm used (L) (M9) rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u3)
1 6GU7 $5.00 RCA 120% / 120% 3200:3100 / 3100Gm used (L) (M9) red - rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u3)
1 6GU7 $5.00 RCA 110% / 110% 1800:2200 / 3100Gm used (L) (M9) rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u3)
1 6GU7 $5.00 RCA 110% / 110% 2600:2800 / 3100Gm used (L) (M9) red - rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u3)
1 6GU7 $5.00 RCA 115% / 125% 2800:3000 / 3100Gm used (L) (M9) red - rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u3)
1 6GU7 $5.00 RCA 130% / 130% 3600:3600 / 3100Gm used (L) (M9) red - rectangular ribbed gray plates (cat:au-28 - u3)
1 6GU7 $5.00 RCA 130% / 120% 3800:3200 / 3100Gm used (L) (M9) red - rectangular ribbed gray plates (cat:au-28 - u3)
1 6GU7 $5.00 RCA 125% / 130% 3500:3500 / 3100Gm used (L) (M9) red - rectangular ribbed gray plates (cat:au-28 - u3)
1 6GU7 $5.00 RCA 105% / 110% 2800:2800 / 3100Gm used (L) (M9) red - rectangular ribbed gray plates (cat:au-28 - u3)
1 6GU7 $3.00 RCA 90% / 90% 1800:1800 / 3100Gm used (L) (M9) red - rectangular ribbed gray plates - grid 'c' clips - clear top (cat:au-28 - u3)
1 6GU7 $3.00 RCA 90% / 100% 2000:2400 / 3100Gm used (L) (M9) red - rectangular ribbed gray plates - grid 'c' clips - clear top (cat:au-28 - u3)
1 6GU7 $3.00 RCA 90% / 120% 2000:3200 / 3100Gm used (L) (M9) red - rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u3)
1 6GU7 $4.00 Triad 95% / 95% 2700:2800 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u6)
1 6GU7 $4.00 Triad 125% / 95% 3500:2600 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u6)
1 6GU7 $4.00 Triad 100% / 100% 2600:3000 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u6)
1 6GU7 $4.00 Sylvania 100% / 100% 2700:2900 / 3100Gm used (L) (M9) yellow - square gray plates (cat:au-28 - u6)
1 6GU7 $4.00 Sylvania 120% / 110% 3000:2500 / 3100Gm used (L) (M9) green - square gray plates (cat:au-28 - u6)
1 6GU7 $4.00 Sylvania 100% / 100% 2600:2800 / 3100Gm used (L) (M9) yellow - square gray plates (cat:au-28 - u6)
1 6GU7 $4.00 Sylvania 110% / 120% 3400:3700 / 3100Gm used (L) (M9) yellow - square gray plates (cat:au-28 - u6)
1 6GU7 $4.00 Packard Bell 100% / 110% 3000:2900 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u6)
1 6GU7 $4.00 Silvertone 120% / 110% 3400:3000 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u6)
1 6GU7 $4.00 Silvertone 110% / 110% 2800:2800 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u6)
1 6GU7 $4.00 Silvertone 110% / 100% 3000:2800 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u6)
1 6GU7 $4.00 Silvertone 100% / 90% 2800:2600 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u6)
1 6GU7 $4.00 Silvertone 110% / 105% 3000:3000 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u6)
1 6GU7 $4.00 Silvertone 110% / 110% 3100:3400 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u6)
1 6GU7 $4.00 Silvertone 110% / 105% 3200:3200 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u6)
1 6GU7 $4.00 Silvertone 120% / 110% 3500:3200 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u6)
1 6GU7 $4.00 Silvertone 130% / 120% 4000:3800 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u6)
1 6GU7 $4.00 Silvertone 90% / 105% 2800:3000 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u6)
1 6GU7 $4.00 Silvertone 100% / 90% 2800:2500 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u6)
1 6GU7 $4.00 Silvertone 90% / 90% 2600:2600 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u6)
1 6GU7 $4.00 Silvertone 100% / 90% 2800:2700 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u6)
1 6GU7 $4.00 Silvertone 100% / 100% 2700:2600 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u6)
1 6GU7 $4.00 Magnavox 110% / 110% 3400:3400 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u8)
1 6GU7 $4.00 Magnavox 100% / 100% 2800:2800 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u8)
1 6GU7 $4.00 Magnavox 100% / 100% 3000:3100 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u8)
1 6GU7 $4.00 Magnavox 100% / 110% 3200:3900 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u8)
1 6GU7 $4.00 Magnavox 115% / 110% 3100:3000 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u8)
1 6GU7 $4.00 Magnavox 110% / 115% 3000:3000 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u8)
1 6GU7 $4.00 Magnavox 90% / 100% 2700:2800 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u8)
1 6GU7 $4.00 Magnavox 130% / 120% 3600:3500 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u8)
1 6GU7 $4.00 Magnavox 100% / 110% 3000:3200 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u8)
1 6GU7 $4.00 Magnavox 110% / 100% 2900:2800 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u8)
1 6GU7 $4.00 Magnavox 90% / 100% 2600:3000 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u8)
1 6GU7 $4.00 Zenith 100% / 90% 2800:2500 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u8)
1 6GU7 $4.00 Wards Airline 130% / 125% 3800:3400 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u8)
1 6GU7 $4.00 Wards Airline 100% / 100% 2600:2600 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u8)
1 6GU7 $4.00 Dumont 110% / 100% 2800:3200 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u8)
1 6GU7 $4.00 Westinghouse 110% / 110% 3200:3100 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u8)
1 6GU7 $4.00 Packard Bell 100% / 110% 2800:3000 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u8)
1 6GU7 $4.00 packard Bell 100% / 110% 2900:3000 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u8)
1 6GU7 $4.00 Packard Bell 110% / 120% 3000:3300 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u8)
1 6GU7 $4.00 Raytheon 110% / 110% 3300:3400 / 3100Gm used (L) (M9) short square gray plates (cat:au-28 - u7)
1 6GU7 $4.00 Raytheon 140% / 130% 4200:4000 / 3100Gm used (L) (M9) short square gray plates (cat:au-28 - u7)
1 6GU7 $4.00 Wards Airline 120% / 120% 3600:3500 / 3100Gm used (L) (M9) short square gray plates (cat:au-28 - u7)
1 6GU7 $4.00 unknown 110% / 125% 3000:3100 / 3100Gm used (L) (M9) rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u2)
1 6GU7 $4.00 unknown 130% / 120% 3400:2800 / 3100Gm used (L) (M9) rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u2)
1 6GU7 $4.00 unknown 105% / 110% 3100:3300 / 3100Gm used (L) (M9) rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u2)
1 6GU7 $4.00 unknown 120% / 120% 3400:3400 / 3100Gm used (L) (M9) rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u2)
1 6GU7 $4.00 unknown 100% / 100% 3000:3000 / 3100Gm used (L) (M9) rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u2)
1 6GU7 $4.00 unknown 120% / 140% 3500:4000 / 3100Gm used (L) (M9) rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u2)
1 6GU7 $4.00 unknown 110% / 110% 3300:3200 / 3100Gm used (L) (M9) rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u2)
1 6GU7 $4.00 unknown 120% / 110% 3800:3600 / 3100Gm used (L) (M9) rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u2)
1 6GU7 $4.00 unknown 110% / 110% 3000:3300 / 3100Gm used (L) (M9) rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u2)
1 6GU7 $4.00 unknown 120% / 100% 2900:3400 / 3100Gm used (L) (M9) rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u2)
1 6GU7 $4.00 unknown 110% / 120% 3300:3600 / 3100Gm used (L) (M9) rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u2)
1 6GU7 $4.00 unknown 110% / 110% 3400:3200 / 3100Gm used (L) (M9) rectangular ribbed gray plates (cat:au-28 - u2)
1 6GU7 $4.00 unknown 120% / 120% 3600:3400 / 3100Gm used (L) (M9) rectangular ribbed gray plates (cat:au-28 - u2)
1 6GU7 $4.00 unknown 100% / 110% 3000:3400 / 3100Gm used (L) (M9) rectangular ribbed gray plates (cat:au-28 - u2)
1 6GU7 $4.00 unknown 100% / 100% 2800:2600 / 3100Gm used (L) (M9) rectangular ribbed gray plates (cat:au-28 - u2)
1 6GU7 $4.00 unknown 110% / 110% 2900:3000 / 3100Gm used (L) (M9) rectangular ribbed gray plates (cat:au-28 - u2)
1 6GU7 $4.00 unknown 105% / 110% 3200:3300 / 3100Gm used (L) (M9) rectangular ribbed gray plates (cat:au-28 - u2)
1 6GU7 $4.00 unknown 110% / 110% 3300:3500 / 3100Gm used (L) (M9) rectangular ribbed gray plates (cat:au-28 - u2)
1 6GU7 $4.00 unknown 100% / 110% 3000:3100 / 3100Gm used (L) (M9) rectangular ribbed gray plates (cat:au-28 - u2)
1 6GU7 $4.00 unknown 105% / 110% 3000:3200 / 3100Gm used (L) (M9) rectangular ribbed gray plates (cat:au-28 - u2)
1 6GU7 $4.00 unknown 110% / 110% 3300:3300 / 3100Gm used (L) (M9) rectangular ribbed gray plates (cat:au-28 - u2)
1 6GU7 $4.00 unknown 110% / 110% 3300:3600 / 3100Gm used (L) (M9) rectangular ribbed gray plates (cat:au-28 - u2)
1 6GU7 $4.00 unknown 110% / 110% 2900:2900 / 3100Gm used (L) (M9) rectangular ribbed gray plates (cat:au-28 - u2)
1 6GU7 $4.00 unknown 105% / 105% 3200:3200 / 3100Gm used (L) (M9) rectangular ribbed gray plates (cat:au-28 - u2)
1 6GU7 $4.00 unknown 110% / 120% 3600:3800 / 3100Gm used (L) (M9) rectangular ribbed gray plates (cat:au-28 - u2)
1 6GU7 $4.00 unknown 120% / 110% 3200:3000 / 3100Gm used (L) (M9) rectangular ribbed gray plates (cat:au-28 - u2)
1 6GU7 $4.00 unknown 120% / 120% 3500:3500 / 3100Gm used (L) (M9) rectangular ribbed gray plates (cat:au-28 - u2)
1 6GU7 $4.00 unknown 130% / 130% 3400:3600 / 3100Gm used (L) (M9) rectangular ribbed gray plates (cat:au-28 - u2)
1 6GU7 $4.00 unknown 120% / 120% 3600:3500 / 3100Gm used (L) (M9) rectangular ribbed gray plates (cat:au-28 - u2)
1 6GU7 $4.00 unknown 110% / 110% 3100:3100 / 3100Gm used (L) (M9) rectangular ribbed gray plates (cat:au-28 - u2)
1 6GU7 $3.00 unknown 100% / 90% 2800:2600 / 3100Gm used (L) (M9) rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u1)
1 6GU7 $3.00 unknown 100% / 90% 2700:2400 / 3100Gm used (L) (M9) rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u1)
1 6GU7 $3.00 unknown 90% / 90% 2600:2700 / 3100Gm used (L) (M9) rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u1)
1 6GU7 $3.00 unknown 95% / 95% 2600:2600 / 3100Gm used (L) (M9) rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u1)
1 6GU7 $3.00 unknown 100% / 90% 2500:2600 / 3100Gm used (L) (M9) rectangular ribbed gray plates - grid 'c' clips (cat:au-28 - u1)
1 6GU7 $3.00 unknown 90% / 95% 2600:2700 / 3100Gm used (L) (M9) rectangular ribbed gray plates (cat:au-28 - u1)
1 6GU7 $3.00 unknown 90% / 90% 2500:2700 / 3100Gm used (L) (M9) rectangular ribbed gray plates (cat:au-28 - u1)
1 6GU7 $3.00 unknown 90% / 90% 2800:2900 / 3100Gm used (L) (M9) rectangular ribbed gray plates (cat:au-28 - u1)
1 6GU7 $4.00 unknown 100% / 100% 2800:2800 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u4)
1 6GU7 $4.00 unknown 110% / 110% 3000:3100 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u4)
1 6GU7 $4.00 unknown 110% / 105% 3100:2900 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u4)
1 6GU7 $4.00 unknown 100% / 100% 2900:2900 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u4)
1 6GU7 $4.00 unknown 100% / 100% 2900:2900 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u4)
1 6GU7 $4.00 unknown 115% / 110% 3100:3000 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u4)
1 6GU7 $4.00 unknown 120% / 120% 3500:3500 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u4)
1 6GU7 $4.00 unknown 100% / 100% 3000:3100 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u4)
1 6GU7 $4.00 unknown 110% / 100% 3000:2800 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u4)
1 6GU7 $4.00 unknown 120% / 110% 3400:3000 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u4)
1 6GU7 $4.00 unknown 110% / 120% 2800:3100 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u4)
1 6GU7 $4.00 unknown 100% / 105% 2400:2600 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u4)
1 6GU7 $4.00 unknown 120% / 110% 3400:3100 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u4)
1 6GU7 $3.00 unknown 90% / 100% 3500:3600 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u4)
1 6GU7 $3.00 unknown 110% / 90% 2900:2600 / 3100Gm used (L) (M9) square gray plates (cat:au-28 - u4)
1 6GU7 $4.00 unknown 120% / 125% 3800:4000 / 3100Gm used (L) (M9) short square gray plates (cat:au-28 - u5)
1 6GU7 $4.00 unknown 115% / 110% 3400:3200 / 3100Gm used (L) (M9) short square gray plates (cat:au-28 - u5)
1 6GU7 $4.00 unknown 110% / 100% 3200:3000 / 3100Gm used (L) (M9) short square gray plates (cat:au-28 - u5)
1 6GU7 $4.00 unknown 130% / 135% 3800:3900 / 3100Gm used (L) (M9) short square gray plates (cat:au-28 - u5)
1 6GU7 $4.00 unknown 110% / 120% 3400:3600 / 3100Gm used (L) (M9) short square gray plates (cat:au-28 - u5)
1 6GU7 $4.00 unknown 110% / 100% 3100:3100 / 3100Gm used (L) (M9) short square gray plates (cat:au-28 - u5)
1 6GU7 $4.00 unknown 105% / 115% 3200:3200 / 3100Gm used (L) (M9) short square gray plates (cat:au-28 - u5)
1 6GU7 $4.00 unknown 100% / 120% 2800:3200 / 3100Gm used (L) (M9) short square gray plates (cat:au-28 - u5)
1 6GU7 $4.00 unknown 110% / 100% 3100:2800 / 3100Gm used (L) (M9) short square gray plates (cat:au-28 - u5)
1 6GU7 $4.00 unknown 110% / 120% 2800:3100 / 3100Gm used (L) (M9) short square gray plates (cat:au-28 - u5)
1 6GU7 $4.00 unknown 120% / 130% 3600:3800 / 3100Gm used (L) (M9) short square gray plates (cat:au-28 - u5)
1 6GU7 $4.00 unknown 100% / 110% 2800:2900 / 3100Gm used (L) (M9) short square gray plates (cat:au-28 - u5)
1 6GU7 $4.00 unknown 120% / 120% 3700:3700 / 3100Gm used (L) (M9) short square gray plates (cat:au-28 - u5)
1 6GU7 $4.00 unknown 140% / 135% 3900:3800 / 3100Gm used (L) (M9) short square gray plates (cat:au-28 - u5)
1 6GU7 $4.00 unknown 110% / 110% 3200:3300 / 3100Gm used (L) (M9) short square gray plates (cat:au-28 - u5)
1 6GU7 $3.00 unknown 110% / 90% 3500:3400 / 3100Gm used (L) (M9) short square gray plates (cat:au-28 - u5)
1 6GU7 $3.00 unknown 90% / 110% 2800:4000 / 3100Gm used (L) (M9) short square gray plates (cat:au-28 - u5)
1 6GU7 $3.00 unknown 110% / 90% 3000:2800 / 3100Gm used (L) (M9) short square gray plates (cat:au-28 - u5)
1 6GU7 $3.00 unknown 90% / 90% 2200:2300 / 3100Gm used (L) (M9) short square gray plates (cat:au-28 - u5)
1 6GU7 $3.00 unknown 110% / 95% 3200:2800 / 3100Gm used (L) (M9) short square gray plates (cat:au-28 - u5)
1 8GU7 $5.00 RCA 110% / 110% 3400:3400 / 3100Gm NOS (OB) (M9) rectangular ribbed gray plates - red letters (cat:au-28)
1 8GU7 $5.00 Zenith 110% / 110% 3400:3400 / 3100Gm NOS (OB) (M9) square gray plates (cat:au-28)
1 8GU7 $5.00 Zenith 100% / 110% 3200:3500 / 3100Gm NOS (OB) (M9) rectangular ribbed gray plates (cat:au-28)
1 8GU7 $5.00 Silvertone 100% / 110% 3000:3100 / 3100Gm NOS (OB) (M9) rectangular ribbed gray plates - grid 'c' clips (cat:au-28)
1 8GU7 $5.00 RCA 130% / 120% 4000:3800 / 3100Gm used (OB) (M9) rectangular ribbed gray plates (cat:au-28)
1 8GU7 $5.00 Silvertone 115% / 100% 3400:3000 / 3100Gm used (L) (M9) rectangular ribbed gray plates (cat:au-28)
1 8GU7 $5.00 RCA 115% / 130% 3200:3600 / 3100Gm used (L) (M9) rectangular ribbed gray plates - grid 'c' clips - red letters (cat:au-28)
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