Welcome to MDB Ventures
Audio Tube Store
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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
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| 1 | 6EY6 | $5.00 | RCA | 110% | 4400:4400 / 2000Gm | NOS (OB) | --- |
| 1 | 6EY6 | $5.00 | GE | 110% | 5000:4400 / 2000Gm | NOS (OB) | --- |
| 1 | 6EY6 | $5.00 | GE | 110% | 4600:4400 / 2000Gm | NOS (OB) | --- |
| 1 | 6EY6 | $5.00 | Motorola | 110% | 4800:4400 / 2000Gm | NOS (OB) | --- |
| 1 | 6EY6 | $5.00 | Tung-Sol | 110% | 4800:4400 / 2000Gm | NOS (OB) | --- |
| 1 | 6EY6 | $2.50 | RCA | 120% | 4800:4400 / 2000Gm | used (wb) | --- |
| 1 | 6EY6 | $2.50 | RCA | 110% | 5000:4400 / 2000Gm | used (rb) | --- |
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| 1 | 6EZ5 | $5.00 | Raytheon | 110% | 5000:4100Gm | NOS (OB) | grid clip |
| 1 | 6EZ5 | $5.00 | GE | 120% | 5000:4100Gm | NOS (OB) | white lettering - grid clip |
| 1 | 6EZ5 | $5.00 | GE | 110% | 5000:4100Gm | NOS (OB) | white lettering - grid clip |
| 1 | 6EZ5 | $5.00 | GE | 115% | 5500:4100Gm | NOS (OB) | white lettering - grid clip |
| 1 | 6EZ5 | $5.00 | Sylvania | 110% | 5250:4100Gm | NOS (OB) | yellow lettering - grid clip |
| 1 | 6EZ5 | $5.00 | Zenith | 110% | 5500:4100Gm | NOS (OB) | grid clip |
| 1 | 6EZ5 | $5.00 | Zenith | 110% | 5500:4100Gm | NOS (OB) | grid clip |
| 1 | 6EZ5 | $5.00 | International Servicemaster | 120% | 5500:4100Gm | NOS (OB) | grid clip |
| 1 | 6EZ5 | $2.00 | Zenith | 100% | 3000:4100Gm | used (rb) | --- |
| 1 | 6EZ5 | $2.00 | RCA | 110% | 4400:4100Gm | used (OB) | red lettering - grid clip |
| 1 | 6EZ5 | $2.00 | GE | 100% | 4600:4100Gm | used (rb) | white lettering - grid clip |
| 1 | 6EZ5 | $2.00 | Sylvania | 120% | 4600:4100Gm | used (L) | yellow lettering - grid clip |
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| 1 | 6FE5 | $5.00 | RCA | 110% | 10000:9500 / 2000 | NOS (OB) | --- |
| 1 | 6FE5 | $2.50 | RCA | 100% | 8000:9500 / 2000 | used (OB) | --- |
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| 1 | 12AH7-GT / VT-207 | $4.00 | Ken-Rad | 130% / 110% | 2650:2400 / 2000 | NOS (OB) | JAN - sealed in box |
| 1 | 12AH7-GT / VT-207 | $4.00 | Ken-Rad | 110% / 110% | 2150:2250 / 2000 | NOS (OB) | JAN - sealed in box |
| 1 | 12AH7-GT / VT-207 | $4.00 | Ken-Rad | 110% / 110% | 2300:2400 / 2000 | NOS (OB) | JAN |
| 1 | 12AH7-GT | $4.00 | CBS / Hytron | 110% / 110% | 2100:2100 / 2000 | NOS (OB) | --- |
| 1 | 12AH7-GT | $4.00 | CBS / Hytron | 110% / 110% | 2250:2250 / 2000 | NOS (OB) | --- |
| 1 | 12AH7-GT | $4.00 | CBS / Hytron | 110% / 110% | 2200:2200 / 2000 | NOS (OB) | --- |
| 1 | 12AH7-GT | $4.00 | CBS / Hytron | 110% / 110% | 2200:2250 / 2000 | NOS (OB) | --- |
| 1 | 12AH7-GT | $4.00 | CBS / Hytron | 110% / 110% | 2200:2150 / 2000 | NOS (OB) | --- |
| 1 | 12AH7-GT | $4.00 | CBS / Hytron | 100% / 110% | 2200:2200 / 2000 | NOS (OB) | --- |
| 1 | 12AH7-GT | $4.00 | CBS / Hytron | 120% / 120% | 2400:2500 / 2000 | NOS (OB) | --- |
| 1 | 12AH7-GT | $4.00 | CBS / Hytron | 120% / 110% | 2300:2200 / 2000 | NOS (OB) | --- |
| 1 | 12AH7-GT | $4.00 | CBS / Hytron | 110% / 110% | 2200:2300 / 2000 | NOS (OB) | --- |
| 1 | 12AH7-GT | $4.00 | CBS / Hytron | 110% / 110% | 2200:2200 / 2000 | NOS (OB) | --- |
| 1 | 12AH7-GT | $4.00 | CBS / Hytron | 110% / 110% | 2200:2200 / 2000 | NOS (OB) | --- |
| 1 | 12AH7-GT | $4.00 | CBS / Hytron | 110% / 110% | 2150:2150 / 2000 | NOS (OB) | --- |
| 1 | 12AH7-GT | $4.00 | Hytron | 110% / 110% | 2050:2100 / 2000 | NOS (OB) | --- |
| 1 | 12AH7-GT | $4.00 | GE | 120% / 120% | 2350:2400 / 2000 | NOS (OB) | sealed in box |
| 1 | 12AH7-GT | $4.00 | GE | 120% / 110% | 2300:2200 / 2000 | NOS (OB) | sealed in box |
| 1 | 12AH7-GT | $4.00 | Cunningham | 120% / 120% | 2500:2600 / 2000 | NOS (OB) | --- |
| 1 | 12AH7-GT | $4.00 | Ken-Rad | 130% / 130% | 2600:2700 / 2000 | NOS (OB) | --- |
| 1 | 12AH7-GT | $4.00 | Ken-Rad | 120% / 110% | 2350:2150 / 2000 | NOS (OB) | --- |
| 1 | 12AH7-GT | $4.00 | RCA | 110% / 115% | 2250:2450 / 2000 | NOS (OB) | --- |
| 1 | 12AH7-GT | $4.00 | RCA | 110% / 110% | 2000:2000 / 2000 | NOS (OB) | --- |
| 1 | 12AH7-GT | $4.00 | RCA | 100% / 100% | 2000:2000 / 2000 | NOS (OB) | --- |
| 1 | 12AH7-GT | $4.00 | RCA | 100% / 100% | 2050:2050 / 2000 | NOS (OB) | --- |
| 1 | 12AH7-GT | $4.00 | RCA | 110% / 110% | 2150:2200 / 2000 | NOS (OB) | --- |
| 1 | 12AH7-GT | $4.00 | RCA | 110% / 120% | 2100:2200 / 2000 | NOS (OB) | --- |
| 1 | 12AH7-GT | $4.00 | RCA | 110% / 110% | 2100:2050 / 2000 | NOS (OB) | --- |
| 1 | 12AH7-GT | $4.00 | RCA | 100% / 110% | 1950:2100 / 2000 | NOS (OB) | --- |
| 1 | 12AH7-GT | $4.00 | RCA | 110% / 110% | 2100:2100 / 2000 | NOS (OB) | --- |
| 1 | 12AH7-GT | $4.00 | RCA | 100% / 100% | 2050:2050 / 2000 | NOS (OB) | --- |
| 1 | 12AH7-GT | $4.00 | RCA | 100% / 100% | 2100:2100 / 2000 | NOS (OB) | --- |
| 1 | 12AH7-GT | $4.00 | RCA | 120% / 120% | 2500:2500 / 2000 | NOS (wb) | (cat:403-330-3) |
| 1 | 12AH7-GT | $4.00 | RCA | 110% / 110% | 2100:2100 / 2000 | NOS (OB) | missing box flap |
| 1 | 12AH7-GT | $4.00 | Sylvania | 140% / 130% | 2500:2250 / 2000 | NOS (wb) | green lettering |
| 1 | 12AH7-GT | $4.00 | Sylvania | 110% / 120% | 2100:2200 / 2000 | NOS (OB) | green lettering |
| 1 | 12AH7-GT / VT-207 | $2.00 | RCA | 105% / 110% | 2150:2300 / 2000 | used (rb) | JAN |
| 1 | 12AH7-GT / VT-207 | $2.00 | RCA | 100% / 100% | 2000:2000 / 2000 | used (rb) | JAN |
| 1 | 12AH7-GT / VT-207 | $2.00 | RCA | 110% / 110% | 2200:2200 / 2000 | used (rb) | US Army |
| 1 | 12AH7-GT | $2.00 | RCA | 110% / 100% | 2100:2000 / 2000 | used (OB) | --- |
| 1 | 12AH7-GT | $2.00 | RCA | 110% / 100% | 2100:2000 / 2000 | used (OB) | --- |
| 1 | 12AH7-GT | $2.00 | RCA | 100% / 100% | 2000:2100 / 2000 | used (rb) | --- |
| 1 | 12AH7-GT | $2.00 | Ken-Rad | 120% / 120% | 2200:2300 / 2000 | used (rb) | --- |
| 1 | 12AH7-GT | $2.00 | Ken-Rad | 130% / 120% | 2600:2700 / 2000 | used (wb) | --- |
| 1 | 12AH7-GT | $2.00 | Ken-Rad | 110% / 115% | 2250:2300 / 2000 | used (rb) | --- |
| 1 | 12AH7-GT / VT-207 | $2.00 | RCA | 110% / 110% | 2150:2150 / 2000 | used (L) | JAN |
| 1 | 12AH7-GT / VT-207 | $2.00 | RCA | 120% / 115% | 2200:2100 / 2000 | used (L) | JAN |
| 1 | 12AH7-GT / VT-207 | $2.00 | RCA | 100% / 120% | 2000:2150 / 2000 | used (L) | JAN |
| 1 | 12AH7-GT / VT-207 | $2.00 | RCA | 120% / 110% | 2300:2200 / 2000 | used (L) | JAN |
| 1 | 12AH7-GT / VT-207 | $2.00 | RCA | 100% / 100% | 2000:2000 / 2000 | used (L) | JAN |
| 1 | 12AH7-GT / VT-207 | $2.00 | RCA | 110% / 100% | 2050:1900 / 2000 | used (L) | JAN |
| 1 | 12AH7-GT / VT-207 | $2.00 | RCA | 100% / 105% | 2000:2050 / 2000 | used (L) | JAN |
| 1 | 12AH7-GT | $2.00 | RCA | 120% / 120% | 2350:2400 / 2000Gm | used (L) | bottom getter - round black plates - cat:403-330-1 |
| 1 | 12AH7-GT | $2.00 | RCA | 110% / 110% | 2000:2000 / 2000Gm | used (L) | bottom getter - round black plates - cat:403-342-4 |
| 1 | 12AH7-GT | $2.00 | Ken-Rad | 110% / 110% | 2100:2000 / 2000Gm | used (L) | bottom getter - round black plates - cat: 403-329-1 |
| 1 | 12AH7-GT | $2.00 | RCA | 100% / 100% | 2000:2000 / 2000Gm | used (L) | bottom getter - round black plates - cat:403-342-1 |
| 1 | 12AH7-GT / VT-207 | $2.00 | Ken-Rad | 110% / 120% | 2150:2350 / 2000 | used (L) | JAN |
| 1 | 12AH7-GT / VT-207 | $2.00 | Ken-Rad | 100% / 100% | 1900:2200 / 2000 | used (L) | US Army |
| 1 | 12AH7-GT | $2.00 | RCA | 110% / 100% | 2050:1950 / 2000 | used (L) | JAN |
| 1 | 12AH7-GT | $2.00 | RCA | 100% / 100% | 1950:2000 / 2000 | used (L) | JAN |
| 1 | 12AH7-GT | $2.00 | Ken-Rad | 120% / 120% | 2400:2400 / 2000 | used (L) | --- |
| 1 | 12AH7-GT | $2.00 | Sylvania | 130% / 120% | 4200:2300 / 2000 | used (L) | --- |
| 1 | 12AH7-GT | $2.00 | GE | 130% / 130% | 2550:2550 / 2000 | used (L) | --- |
| 1 | 12AH7-GT | $2.00 | RCA | 110% / 110% | 2100:2150 / 2000 | used (L) | --- |
| 1 | 12AH7-GT | $2.00 | RCA | 100% / 110% | 2000:2000 / 2000 | used (L) | --- |
| 1 | 12AH7-GT / VT-207 | $1.00 | RCA | 105% / 90% | 2000:1750 / 2000 | used (L) | JAN |
| 1 | 12AH7-GT / VT-207 | $1.00 | RCA | 90% / 100% | 2050:2000 / 2000 | used (rb) | JAN |
| 1 | 12AH7-GT / VT-207 | $1.00 | Ken-Rad | 90% / 100% | 2100:2250 / 2000 | used (L) | JAN |
| 1 | 12AH7-GT | $2.00 | RCA | 90% / 100% | 1850:2050 / 2000Gm | used (L) | bottom getter - round black plates |
| 1 | 12AH7-GT | $1.00 | unknown | 90% / 90% | 1900:1950 / 2000 | used (L) | --- |
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| 1 | 1644 / 12L8-GT | $5.00 | RCA | 140% / 110% | 3000:2500 / 1700 | NOS (OB) | part#803697 |
| 1 | 1644 / 12L8-GT | $5.00 | RCA | 130% / 120% | 3000:2000 / 1700 | NOS (OB) | part#803697 |
| 1 | 1644 / 12L8-GT | $5.00 | RCA | 140% / 120% | 3000:2000 / 1700 | NOS (OB) | part#803697 |
| 1 | 1644 / 12L8-GT | $5.00 | RCA | 120% / 140% | 2250:2700 / 1700 | NOS (OB) | part#803697 |
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| 1 | 1635 | $10.00 | RCA | 120% / 120% | 900:900 / 800Gm | used (OB) | gray coat - JAN |
| 1 | 1635 | $5.00 | RCA | 120% / 125% | 900:950 / 800Gm | used (wb) | gray coat |
| 1 | 1635 | $5.00 | RCA | 120% / 120% | 950:950 / 800Gm | used (wb) | JAN |
| 1 | 1635 | $5.00 | RCA | 120% / 120% | 800:800 / 800Gm | used (wb) | gray coat |
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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Don't forget to visit our
Discount Bargain Packs
and
Bargain Bin
for more savings!
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