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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 6SN7GT $7.50 Hytron 100% / 100% 2500:2500 / 2000Gm used (L) bottom getter - square black plates
1 6SN7GTB $7.50 Zenith 100% / 100% 2300:2400 / 2000Gm used (L) side getter - rectangular gray plates
1 6SN7GT $7.50 Motorola 110% / 100% 2550:2400 / 2000Gm used (L) bottom getter - square gray plates
1 6SN7GTB $7.50 Olympic 100% / 100% 2300:2400 / 2000Gm used (L) top getter - square black plates
1 6SN7GT $7.50 Emerson 100% / 105% 2400:2300 / 2000Gm used (L) top getter - square black plates
1 6SN7GT $7.00 unknown 105% / 115% 2700:2800 / 2000Gm used (L) bottom getter - square black plates
1 6SN7GT $7.00 unknown 105% / 115% 2600:2900 / 2000Gm used (L) bottom getter - rectangular black plates
1 6SN7GT $7.00 unknown 105% / 100% 2400:2500 / 2000Gm used (L) bottom getter - square black plates
1 6SN7GTB $7.50 Raytheon 100% / 100% 2400:2600 / 2000Gm used (L) side getter - rectangular black plates
1 6SN7GTB $7.50 Raytheon 105% / 110% 2700:2900 / 2000Gm used (L) top getter - rectangular black plates
1 6SN7GTB $7.50 Raytheon 110% / 100% 2500:2750 / 2000Gm used (L) top getter - rectangular gray plates
1 6SN7GT $7.50 Raytheon 120% / 100% 2700:2400 / 2000Gm used (L) side getter - rectangular black plates
1 6SN7GT $5.00 Raytheon 100% / 100% 2500:2400 / 2000Gm used (L) bottom getter - rectangular black plates - grid 'c' clips - minor corrosion on pins
1 6SN7GT $7.50 Sylvania 110% / 105% 2700:2500 / 2000Gm used (L) bottom getter - rectangular gray plates - green lettering
1 6SN7GTB $10.00 Westinghouse 130% / 130% 2500:2500 / 2000Gm used (L) bottom getter - square black plates
1 6SN7GT $10.00 Packard Bell 125% / 130% 2400:2550 / 2000Gm used (L) bottom getter - rectangular black plates
1 6SN7GT $10.00 Silvertone 120% / 115% 2250:2100 / 2000Gm used (L) top getter - square black plates
1 6SN7GT $10.00 Selectron 120% / 125% 2300:2300 / 2000Gm used (L) top getter - rectangular black plates
1 6SN7GT $10.00 Cornell 120% / 130% 2300:2500 / 2000Gm used (L) side getter - rectangular black plates
1 6SN7GT $10.00 Magnavox 130% / 120% 2400:2200 / 2000Gm used (L) bottom getter - rectangular black plates - gray coat
1 6SN7GT $10.00 GE 110% / 120% 2150:2200 / 2000Gm used (L) side getter - rectangular gray plates - white lettering
1 12SN7GTA $20.00 Tung-Sol 120% / 110% 2600:2500 / 2000Gm NOS (OB) top getter - rectangular black plates - water damaged box
1 12SN7GT $20.00 Tung-Sol 120% / 120% 2700:2800 / 2000Gm NOS (OB) bottom getter - square black plates
1 12SN7GT $20.00 Tung-Sol 120% / 120% 2750:2750 / 2000Gm NOS (OB) bottom getter - square gray plates
1 12SN7GT $20.00 Tung-Sol 110% / 110% 2400:2400 / 2000Gm NOS (OB) bottom getter - square gray plates
1 12SN7GT $20.00 Tung-Sol 120% / 120% 2600:2650 / 2000Gm NOS (OB) bottom getter - square gray plates
1 12SN7GT $20.00 Tung-Sol 120% / 120% 2600:2650 / 2000Gm NOS (OB) bottom getter - square gray plates
1 12SN7GT $20.00 Tung-Sol 120% / 120% 2600:2700 / 2000Gm NOS (OB) bottom getter - square gray plates
1 12SN7GTA $20.00 Tung-Sol 110% / 115% 2450:2600 / 2000Gm NOS (OB) top getter - square black plates
1 12SN7GTA $20.00 Tung-Sol 110% / 115% 2600:2500 / 2000Gm NOS (OB) top getter - square black plates
1 12SN7GTA $20.00 Tung-Sol 110% / 110% 2400:2500 / 2000Gm NOS (OB) top getter - square black plates
1 12SN7GTA $20.00 Tung-Sol 120% / 110% 2600:2500 / 2000Gm NOS (OB) top getter - square black plates
1 12SN7GTA $20.00 Tung-Sol 120% / 115% 2700:2600 / 2000Gm NOS (OB) top getter - square black plates
1 12SN7GT $15.00 RCA 120% / 120% 2600:2600 / 2000Gm NOS (OB) JAN - white lettering - bottom getter - gray coat
1 12SN7GTA $15.00 RCA 120% / 120% 2500:2500 / 2000Gm NOS (OB) bottom getter - rectangular ribbed black plates - red lettering (cat:402-347)
1 12SN7GTA $15.00 RCA 110% / 110% 2300:2500 / 2000Gm NOS (OB) red lettering - bottom getter - rectangular ribbed black plates
1 12SN7GTA $15.00 RCA 120% / 125% 2700:2900 / 2000Gm NOS (OB) red lettering - bottom getter - rectangular ribbed black plates
1 12SN7GTA $15.00 RCA 115% / 125% 2700:2800 / 2000Gm NOS (OB) red lettering - bottom getter - rectangular ribbed black plates
1 12SN7GTA $15.00 RCA 120% / 125% 2800:2900 / 2000Gm NOS (OB) red lettering - bottom getter - rectangular ribbed black plates
1 12SN7GTA $15.00 RCA 120% / 110% 2800:2600 / 2000Gm NOS (OB) red lettering - bottom getter - rectangular ribbed black plates
1 12SN7GT $15.00 RCA 120% / 120% 2500:2600 / 2000Gm NOS (OB) white lettering - bottom getter - rectangular ribbed black plates
1 12SN7GT $15.00 RCA 120% / 110% 2900:2650 / 2000Gm NOS (OB) white lettering - bottom getter - rectangular ribbed black plates
1 12SN7GT $15.00 RCA 115% / 130% 2700:3100 / 2000Gm NOS (OB) white lettering - bottom getter - rectangular ribbed black plates
1 12SN7GT $15.00 RCA 110% / 110% 2500:2500 / 2000Gm NOS (OB) white lettering - bottom getter - rectangular ribbed black plates
1 12SN7GT $15.00 RCA 110% / 110% 2500:2500 / 2000Gm NOS (OB) white lettering - bottom getter - rectangular ribbed black plates
1 12SN7GT $15.00 RCA 110% / 110% 2500:2700 / 2000Gm NOS (OB) white lettering - bottom getter - rectangular ribbed black plates
1 12SN7GT $15.00 RCA 115% / 115% 2600:2700 / 2000Gm NOS (OB) white lettering - bottom getter - rectangular ribbed black plates
1 12SN7GT $15.00 RCA 120% / 110% 2500:2350 / 2000Gm NOS (OB) white lettering - bottom getter - rectangular ribbed black plates
1 12SN7GT $15.00 RCA 120% / 110% 2700:2600 / 2000Gm NOS (OB) white lettering - bottom getter - rectangular ribbed black plates
1 12SN7GT $15.00 RCA 120% / 130% 2700:2800 / 2000Gm NOS (OB) white lettering - bottom getter - rectangular ribbed black plates
1 12SN7GTA $12.00 Raytheon 130% / 130% 2900:2900 / 2000Gm NOS (OB) side getter - rectangular ribbed black plates
1 12SN7GTA $12.00 Raytheon 130% / 110% 3000:2600 / 2000Gm NOS (OB) top getter - rectangular ribbed black plates
1 12SN7GTA $12.00 Raytheon 120% / 120% 2600:2700 / 2000Gm NOS (OB) top getter - rectangular ribbed black plates
1 12SN7GTA $12.00 Raytheon 110% / 110% 2500:2600 / 2000Gm NOS (wb) top getter - rectangular gray plates
1 12SN7GT $12.00 Raytheon 130% / 130% 2900:2900 / 2000Gm NOS (OB) sealed in box
1 12SN7GT $12.00 Raytheon 130% / 120% 2900:3000 / 2000Gm NOS (OB) sealed in box
1 12SN7GT $12.00 Raytheon 120% / 120% 2600:2750 / 2000Gm NOS (OB) sealed in box
1 12SN7GT $12.00 Raytheon 120% / 115% 2750:2600 / 2000Gm NOS (OB) top getter - rectangular ribbed black plates
1 12SN7GT $12.00 Raytheon 120% / 120% 2600:2600 / 2000Gm NOS (OB) bottom getter - rectangular ribbed black plates
1 12SN7GT $10.00 CBS 120% / 120% 2700:2700 / 2000Gm NOS (OB) bottom getter - square black plates
1 12SN7GT $10.00 CBS 115% / 125% 2500:2500 / 2000Gm NOS (OB) top getter - square black plates
1 12SN7GT $10.00 CBS 120% / 120% 2600:2750 / 2000Gm NOS (OB) bottom getter - square black plates
1 12SN7GT $10.00 Philco 120% / 120% 2700:2700 / 2000Gm NOS (OB) top getter - square black plates
1 12SN7GT $10.00 Philco 130% / 120% 3000:2900 / 2000Gm NOS (OB) bottom getter - square black plates
1 12SN7GT $10.00 Philco 110% / 115% 2400:2500 / 2000Gm NOS (OB) top getter - square black plates
1 12SN7GT $10.00 Philco 120% / 110% 2700:2600 / 2000Gm NOS (OB) top getter - square black plates
1 12SN7GT $10.00 Wards Super Airline 120% / 120% 2900:2900 / 2000Gm NOS (OB) bottom getter - rectangular ribbed black plates
1 12SN7GTA $10.00 Realistic 120% / 120% 2800:2700 / 2000Gm NOS (OB) bottom getter - rectangular gray plates
1 12SN7GT $10.00 N.J.R.T. 125% / 120% 2700:2700 / 2000Gm NOS (wb) bottom getter - square gray plates
1 12SN7GT $10.00 S.R.S. 115% / 120% 2800:2900 / 2000Gm NOS (OB) bottom getter - rectangular ribbed black plates
1 12SN7GT $10.00 Minneapolis Honeywell Regulator Company 130% / 130% 2900:2900 / 2000Gm NOS (wb) bottom getter - rectangular ribbed black plates
1 12SN7GT $10.00 Zenith 115% / 115% 2600:2650 / 2000Gm NOS (OB) top getter - square black plates
1 12SN7GTA $10.00 Zenith 110% / 120% 2500:2650 / 2000Gm NOS (OB) side getter - rectangular ribbed gray plates
1 12SN7GT $10.00 Westinghouse 120% / 130% 2700:2800 / 2000Gm NOS (OB) top getter - square black plates
1 12SN7GT $10.00 Westinghouse 110% / 110% 2550:2600 / 2000Gm NOS (OB) top getter - square black plates
1 12SN7GT $10.00 Westinghouse 140% / 130% 2850:2700 / 2000Gm NOS (OB) side getter - rectangular ribbed black plates
1 12SN7GT $10.00 Westinghouse 120% / 110% 2600:2500 / 2000Gm NOS (OB) top getter - square black plates
1 12SN7GT $10.00 Westinghouse 115% / 110% 2500:2400 / 2000Gm NOS (OB) top getter - rectangular ribbed black plates
1 12SN7GTA $10.00 Westinghouse 125% / 125% 3000:3000 / 2000Gm NOS (OB) top getter - rectangular ribbed black plates
1 12SN7GTA $10.00 GE 110% / 120% 2300:2500 / 2000Gm NOS (OB) side getter - rectangular gray plates - white lettering (cat:402-354)
1 12SN7GTA $10.00 GE 125% / 140% 2700:3000 / 2000Gm NOS (OB) side getter - rectangular gray plates - white lettering (cat:402-349)
1 12SN7GTA $10.00 GE 120% / 120% 2400:2500 / 2000Gm NOS (OB) side getter - rectangular gray plates - white lettering (cat:402-348) - torn box flap
1 12SN7GTA $10.00 GE 110% / 110% 2700:2600 / 2000Gm NOS (OB) side getter - rectangular gray plates - white lettering
1 12SN7GTA $10.00 GE 120% / 115% 2750:2600 / 2000Gm NOS (OB) side getter - rectangular gray plates - white lettering
1 12SN7GTA $10.00 GE 110% / 110% 2500:2500 / 2000Gm NOS (OB) side getter - rectangular gray plates - white lettering
1 12SN7GTA $10.00 GE 125% / 115% 2900:2700 / 2000Gm NOS (OB) side getter - rectangular gray plates - white lettering
1 12SN7GTA $10.00 GE 110% / 110% 2450:2500 / 2000Gm NOS (OB) side getter - rectangular gray plates - white lettering
1 12SN7GTA $10.00 GE 115% / 120% 2550:2750 / 2000Gm NOS (OB) side getter - rectangular gray plates - white lettering
1 12SN7GTA $10.00 GE 110% / 120% 2500:2600 / 2000Gm NOS (OB) side getter - rectangular gray plates - white lettering
1 12SN7GTA $10.00 GE 120% / 120% 2700:2800 / 2000Gm NOS (OB) side getter - rectangular gray plates - white lettering
1 12SN7GTA $10.00 GE 120% / 125% 2700:2800 / 2000Gm NOS (OB) side getter - rectangular gray plates - white lettering
1 12SN7GTA $10.00 GE 110% / 110% 2500:2400 / 2000Gm NOS (OB) side getter - rectangular gray plates - red lettering
1 12SN7GTA $10.00 GE 120% / 115% 2650:2600 / 2000Gm NOS (OB) top getter - square black plates - white lettering
1 12SN7GT $10.00 Viking 115% / 115% 2650:2700 / 2000Gm NOS (OB) bottom getter - square black plates
1 12SN7GT $10.00 Viking 130% / 110% 3000:2600 / 2000Gm NOS (OB) bottom getter - square black plates
1 12SN7GT $10.00 Viking 125% / 130% 3000:3100 / 2000Gm NOS (OB) bottom getter - square black plates
1 12SN7GT $10.00 Viking 110% / 115% 2650:2800 / 2000Gm NOS (OB) top getter - square black plates
1 12SN7GT $10.00 Viking 140% / 120% 3400:2750 / 2000Gm NOS (OB) bottom getter - square gray plates - mica mouse ear supports - missing box flap
1 12SN7GTA $10.00 Sylvania 120% / 120% 2500:2600 / 2000Gm NOS (OB) top getter - square black plates - yellow lettering (cat:402-351)
1 12SN7GT $10.00 Sylvania 110% / 110% 2500:2550 / 2000Gm NOS (OB) top getter - square black plates - yellow lettering
1 12SN7GT $10.00 Sylvania 115% / 115% 2800:2800 / 2000Gm NOS (OB) top getter - square black plates - yellow lettering
1 12SN7GT $10.00 Sylvania 120% / 125% 2800:2900 / 2000Gm NOS (OB) top getter - square black plates - yellow lettering
1 12SN7GT $10.00 Sylvania 110% / 110% 2600:2700 / 2000Gm NOS (OB) top getter - square black plates - yellow lettering
1 12SN7GT $10.00 Sylvania 110% / 110% 2700:2700 / 2000Gm NOS (OB) top getter - square black plates - yellow lettering
1 12SN7GT $10.00 Sylvania 120% / 120% 2800:2900 / 2000Gm NOS (OB) top getter - square black plates - yellow lettering
1 12SN7GT $10.00 Sylvania 120% / 120% 2900:2900 / 2000Gm NOS (OB) top getter - square black plates - yellow lettering
1 12SN7GT $10.00 Sylvania 110% / 110% 2550:2600 / 2000Gm NOS (OB) top getter - square black plates - yellow lettering
1 12SN7GT $10.00 Sylvania 110% / 110% 2600:2700 / 2000Gm NOS (OB) top getter - square black plates - yellow lettering
1 12SN7GT $10.00 Sylvania 120% / 120% 2700:2800 / 2000Gm NOS (OB) top getter - square black plates - yellow lettering
1 12SN7GT $10.00 Sylvania 115% / 110% 2700:2700 / 2000Gm NOS (OB) top getter - square black plates - yellow lettering
1 12SN7GT $10.00 Sylvania 110% / 110% 2600:2600 / 2000Gm NOS (OB) top getter - square black plates - yellow lettering
1 12SN7GT $10.00 Sylvania 120% / 120% 2800:2800 / 2000Gm NOS (OB) top getter - square black plates - yellow lettering
1 12SN7GT $10.00 Sylvania 110% / 110% 2500:2550 / 2000Gm NOS (OB) top getter - square black plates - yellow lettering
1 12SN7GT $10.00 Sylvania 110% / 120% 2800:2900 / 2000Gm NOS (OB) top getter - square black plates - yellow lettering
1 12SN7GT $10.00 Sylvania 120% / 120% 2850:2850 / 2000Gm NOS (OB) top getter - square black plates - yellow lettering
1 12SN7GT $10.00 Sylvania 115% / 115% 2700:2700 / 2000Gm NOS (OB) top getter - square black plates - yellow lettering
1 12SN7GT $10.00 Sylvania 115% / 115% 2700:2700 / 2000Gm NOS (OB) top getter - square black plates - green lettering
1 12SN7GT $10.00 Sylvania 125% / 125% 2900:2900 / 2000Gm NOS (OB) top getter - square black plates - green lettering - missing box flap
1 12SN7GT $10.00 Sylvania 130% / 125% 2950:2850 / 2000Gm NOS (wb) bottom getter - square black plates - white lettering
1 12SN7GT $10.00 Sylvania 125% / 125% 2900:2900 / 2000Gm NOS (OB) top getter - square black plates - green lettering
1 12SN7GTA $10.00 Sylvania 115% / 125% 2800:2900 / 2000Gm NOS (OB) top getter - square black plates - yellow lettering
1 12SN7GTA $10.00 Sylvania 110% / 110% 2600:2600 / 2000Gm NOS (OB) top getter - square black plates - yellow lettering
1 12SN7GTA $10.00 Rad-Tel 120% / 115% 2700:2600 / 2000Gm NOS (OB) top getter - rectangular black plates - damaged box
1 12SN7GTA $10.00 Rad-Tel 120% / 120% 2700:2600 / 2000Gm NOS (OB) top getter - rectangular black plates
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