MDB Ventures "G" Style Radio Vacuum Tubes
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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/loktal, miniature, subminature, metal, power, transmitter tubes and many more.
MDB Ventures "G" Style Radio Tubes
Qty
Avail | Tube
Type | Price
Each | Tube
Brand | Emission
Strength | Mutual
Conduct |
Desc |
Notes
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| 1 | 6V7-G | $5.00 | Philco | 100% diodes:110% / 110% | 1250 / 975Gm | NOS (OB) | (ST) sealed in box |
| 1 | 6V7-G | $5.00 | Super Silvertone | 100% diodes:115% / 120% | 1150 / 975Gm | NOS (OB) | (ST) --- |
| 1 | 6V7-G | $5.00 | RCA | 130% diodes:115% / 120% | 1350 / 975Gm | NOS (OB) | (ST) (cat:403-97) damaged box |
| 1 | 6V7-G | $3.00 | Wards Super Airline | 110% diodes:120% / 120% | 1050 / 975Gm | used (L) | (ST) --- |
| 1 | 6V7-G | $1.00 | Raytheon | 140% diodes:120% / 120% | 1300 / 975Gm | used leaky (1M) (L) | (ST) --- |
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| 1 | 6W3-G | $10.00 | National Union | 110% | --- | NOS (OB) | (ST) small cap |
| 1 | 6W3-G | $10.00 | National Union | 110% | --- | NOS (OB) | (ST) small cap |
| 1 | 6W3-G | $10.00 | National Union | 110% | --- | NOS (OB) | (ST) large cap |
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| 1 | 6W5-G | $10.00 | Raytheon | 100% / 100% | --- | used (wb) | (ST) --- |
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| 1 | 6W7-G | $6.00 | Sylvania | 140% | 1900 / 1225Gm | NOS (OB) | (ST) --- |
| 1 | 6W7-G | $6.00 | RCA Victor | 110% | 1500 / 1225Gm | NOS (OB) | (ST) --- |
| 1 | 6W7-G | $6.00 | RCA Victor | 110% | 1500 / 1225Gm | NOS (wb) | (ST) --- |
| 1 | 6W7-G | $6.00 | RCA | 110% | 1500 / 1225Gm | NOS (OB) | (ST) --- |
| 1 | 6W7-G | $6.00 | Philco | 110% | 1500 / 1225Gm | NOS (OB) | (ST) --- |
| 1 | 6W7-G | $6.00 | Philco | 110% | 1500 / 1225Gm | NOS (OB) | (ST) missing box flap |
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| 1 | 6Z7-G | $10.00 | National Union | 110% / 110% | 1300:1350 / 1200Gm | NOS (OB) | (ST) round black plates - gray coat |
| 1 | 6Z7-G | $10.00 | National Union | 110% / 110% | 1350:1300 / 1200Gm | NOS (OB) | (ST) round black plates - gray coat |
| 1 | 6Z7-G | $10.00 | Sylvania | 115% / 115% | 1300:1350 / 1200Gm | NOS (OB) | (ST) round black plates - gray coat - torn box flap |
| 1 | 6Z7-G | $10.00 | Sylvania | 115% / 115% | 1300:1400 / 1200Gm | NOS (wb) | (ST) round black plates - gray coat |
| 1 | 6Z7-G | $7.50 | Raytheon | 100% / 110% | 1300:1450 / 1200Gm | used (wb) | (ST) round black plates - clear glass - US Navy |
| 1 | 6Z7-G | $5.00 | GM | 100% / 115% | 1200:1300 / 1200Gm | used (wb) | (ST) round black plates - clear glass |
| 1 | 6Z7-G | $5.00 | RCA Victor | 100% / 100% | 1200:1200 / 1200Gm | used (rb) | (ST) round black plates - gray coat |
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| 1 | 6ZY5-G | $6.00 | Philco | 120% / 120% | --- | NOS (wb) | (ST) --- |
| 1 | 6ZY5-G | $6.00 | Sylvania | 110% / 130% | --- | NOS (OB) | (ST) --- |
| 1 | 6ZY5-G | $6.00 | Sylvania | 140% / 130% | --- | NOS (OB) | (ST) --- |
| 1 | 6ZY5-G | $6.00 | Sylvania | 140% / 140% | --- | NOS (OB) | (ST) --- |
| 1 | 6ZY5-G | $6.00 | Sylvania | 140% / 110% | --- | NOS (OB) | (ST) --- |
| 1 | 6ZY5-G | $6.00 | National Union | 120% / 120% | --- | NOS (OB) | (ST) damaged box |
| 1 | 6ZY5-G | $6.00 | Super Silvertone | 130% / 130% | --- | NOS (OB) | (ST) engraved base - missing box flap |
| 1 | 6ZY5-G | $3.00 | Sylvania | 100% / 105% | --- | used (L) | (ST) --- |
| 1 | 6ZY5-G | $3.00 | RCA | 100% / 105% | --- | used (L) | (ST) --- |
| 1 | 6ZY5-G | $3.00 | Zenith | 100% / 100% | --- | used (L) | (ST) engraved base |
| 1 | 6ZY5-G | $3.00 | Cunningham | 110% / 110% | --- | used (L) | (ST) --- |
| 1 | 6ZY5-G | $2.00 | Wizard | 90% / 100% | --- | used (L) | (ST) --- |
| 1 | 6ZY5-G | $2.00 | Wards Super Airline | 100% / 90% | --- | used (rb) | (ST) --- |
| 1 | 6ZY5-G | $2.00 | Wards Super Airline | 95% / 90% | --- | used (L) | (ST) pin 1 ground strap |
| 1 | 6ZY5-G | $2.00 | Wards Super Airline | 90% / 90% | --- | used (L) | (ST) pin 1 ground strap |
| 1 | 6ZY5-G | $2.00 | Sylvania | 90% / 85% | --- | used (L) | (ST) (pl) |
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| 1 | 12A8-G | $5.00 | Sylvania | 150% / 110% | 1550 / 1000:650 / 300Gm | NOS (OB) | (ST) --- |
| 1 | 12A8-G | $5.00 | Sylvania | 140% / 100% | 1450 / 1000:550 / 300Gm | NOS (OB) | (ST) --- |
| 1 | 12A8-G | $5.00 | Sylvania | 140% / 120% | 1450 / 1000:700 / 300Gm | NOS (OB) | (ST) --- |
| 1 | 12A8-G | $2.50 | Zenith | 120% / 100% | 1350 / 1000:500 / 300Gm | used (L) | (ST) --- |
| 1 | 12A8-G | $1.00 | National Union | 70% / 110% | 1000 / 1000:350 / 300Gm | used (L) | (ST) --- |
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| 1 | 12B6-G | $10.00 | Rogers | 90%: diodes 120% / 120% | 600 / 750Gm | used (wb) | (ST) --- |
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| 1 | 12J7-G | $5.00 | Zenith | 115% | 1100 / 1225Gm | used (rb) | (ST) --- |
| 1 | 12J7-G | $5.00 | Zenith | 130% | 1250 / 1225Gm | used (L) | (ST) --- |
| 1 | 12J7-G | $5.00 | Philco | 125% | 1300 / 1225Gm | used (L) | (ST) --- |
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| 1 | 12K7-G | $5.00 | Zenith | 130% | 1900 / 1450Gm | NOS (wb) | (ST) --- |
| 1 | 12K7-G | $5.00 | CBS | 120% | 1600 / 1450Gm | NOS (OB) | (ST) torn box flap |
| 1 | 12K7-G | $5.00 | Sylvania | 120% | 1700 / 1450Gm | NOS (wb) | (ST) --- |
| 1 | 12K7-G | $5.00 | Sylvania | 120% | 1650 / 1450Gm | NOS (OB) | (ST) damaged box |
| 1 | 12K7-G | $5.00 | Sylvania | 130% | 1850 / 1450Gm | NOS (OB) | (ST) --- |
| 1 | 12K7-G | $3.50 | Zenith | 110% | 1600 / 1450Gm | used (rb) | (ST) --- |
| 1 | 12K7-G | $3.50 | Sylvania | 110% | 1500 / 1450Gm | used (rb) | (ST) --- |
| 1 | 12K7-G | $2.50 | Zenith | 125% | 1850 / 1450Gm | used (L) | (ST) --- |
| 1 | 12K7-G | $2.50 | Zenith | 130% | 1700 / 1450Gm | used (L) | (ST) --- |
| 1 | 12K7-G | $2.50 | Zenith | 120% | 1750 / 1450Gm | used (L) | (ST) --- |
| 1 | 12K7-G | $2.50 | Zenith | 100% | 1450 / 1450Gm | used (L) | (ST) --- |
| 1 | 12K7-G | $1.00 | Zenith | 70% | 950 / 1450Gm | used (L) | (ST) cat:312-391 |
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| 1 | 12Q7-G | $5.00 | Sylvania | 120% diodes:100% / 110% | 1000 / 800Gm | NOS (OB) | (ST) damaged box |
| 1 | 12Q7-G | $5.00 | Sylvania | 140% diodes:110% / 110% | 1000 / 800Gm | NOS (OB) | (ST) damaged box |
| 1 | 12Q7-G | $5.00 | Sylvania | 130% diodes:110% / 110% | 1000 / 800Gm | NOS (OB) | (ST) --- |
| 1 | 12Q7-G | $5.00 | Sylvania | 140% diodes:110% / 120% | 1100 / 800Gm | NOS (OB) | (ST) --- |
| 1 | 12Q7-G | $3.50 | Philco | 130% diodes:150% / 150% | 900 / 800Gm | used (L) | (ST) --- |
| 1 | 12Q7-G | $3.50 | Zenith | 130% diodes:130% / 140% | 1000 / 800Gm | used (L) | (ST) (cat:401-225) |
| 1 | 12Q7-G | $3.50 | Zenith | 115% diodes:140% / 130% | 900 / 800Gm | used (L) | (ST) --- |
| 1 | 12Q7-G | $3.50 | Zenith | 150% diodes:120% / 150% | 1200 / 800Gm | used (L) | (ST) --- |
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| 1 | 12SA7-G | $10.00 | Zenith | 140% / 140% | 3900 / 3000Gm | used (L) | (ST) --- |
| 1 | 12SA7-G | $10.00 | Zenith | 130% / 150% | 3900 / 3000Gm | used (L) | (ST) --- |
| 1 | 12SA7-G | $10.00 | Zenith | 140% / 150% | 3800 / 3000Gm | used (L) | (ST) --- |
| 1 | 12SA7-G | $10.00 | Zenith | 120% / 150% | 4200 / 3000Gm | used (L) | (ST) --- |
| 1 | 12SA7-G | $10.00 | Zenith | 100% / 140% | 3000 / 3000Gm | used (L) | (ST) --- |
| 1 | 12SA7-G | $5.00 | Zenith | 80% / 150% | 3100 / 3000Gm | used (L) | (ST) --- |
| 1 | 12SA7-G | $5.00 | Micro Electron | 110% / 125% | 3200 / 3000Gm | used (L) | (ST) --- |
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| 1 | 35Z6-G | $10.00 | National Union | 120% / 120% | --- | NOS (OB) | (ST) --- |
| 1 | 35Z6-G | $10.00 | National Union | 120% / 120% | --- | NOS (OB) | (ST) --- |
| 1 | 35Z6-G | $10.00 | National Union | 120% / 120% | --- | NOS (OB) | (ST) --- |
| 1 | 35Z6-G | $10.00 | National Union | 120% / 120% | --- | NOS (OB) | (ST) --- |
| 1 | 35Z6-G | $10.00 | National Union | 120% / 120% | --- | NOS (OB) | (ST) --- |
| 1 | 35Z6-G | $10.00 | National Union | 120% / 120% | --- | NOS (OB) | (ST) --- |
| 1 | 35Z6-G | $10.00 | National Union | 120% / 120% | --- | NOS (OB) | (ST) --- |
| 1 | 35Z6-G | $10.00 | National Union | 120% / 120% | --- | NOS (OB) | (ST) --- |
| 1 | 35Z6-G | $10.00 | National Union | 120% / 120% | --- | NOS (OB) | (ST) --- |
| 1 | 35Z6-G | $10.00 | National Union | 120% / 120% | --- | NOS (OB) | (ST) --- |
| 1 | 35Z6-G | $10.00 | National Union | 120% / 120% | --- | NOS (wb) | (ST) --- |
| 1 | 35Z6-G | $10.00 | GE | 110% / 110% | --- | NOS (OB) | (ST) --- |
| 1 | 35Z6-G | $10.00 | Raytheon | 120% / 120% | --- | NOS (OB) | (ST) --- |
| 1 | 35Z6-G | $10.00 | Raytheon | 130% / 130% | --- | NOS (ob) | (ST) damaged box |
| 1 | 35Z6-G | $6.00 | GE | 120% / 120% | --- | used (rb) | (ST) --- |
| 1 | 35Z6-G | $6.00 | National Union | 110% / 110% | --- | used (L) | (ST) --- |
| 1 | 35Z6-G | $6.00 | National Union | 110% / 110% | --- | used (L) | (ST) --- |
| 1 | 35Z6-G | $6.00 | National Union | 110% / 110% | --- | used (L) | (ST) --- |
| 1 | 35Z6-G | $6.00 | National Union | 115% / 110% | --- | used (L) | (ST) --- |
| 1 | 35Z6-G | $6.00 | National Union | 120% / 120% | --- | used (L) | (ST) --- |
| 1 | 35Z6-G | $6.00 | National Union | 120% / 120% | --- | used (L) | (ST) --- |
| 1 | 35Z6-G | $6.00 | National Union | 120% / 120% | --- | used (L) | (ST) --- |
| 1 | 35Z6-G | $6.00 | National Union | 120% / 120% | --- | used (L) | (ST) --- |
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| 1 | 117Z6-G | $6.00 | Zenith | 115% / 115% | --- | used (L) | (TT) --- |
| 1 | 117Z6-G | $6.00 | Zenith | 110% / 110% | --- | used (L) | (TT) --- |
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, TT=Tall Tubular Style, GT=GT Style, 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 "G" Style Radio 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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