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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, subminature, metal, power, transmitter tubes and many more.
If you need a tube you don't see here, just send us an email
and we will let you know what we have and the prices.
We have both NOS and used tubes available for most of the tube numbers.
MDB Ventures Radio Tubes
Quantity
Available | Tube
Type | Price
Each | Tube
Brand | Emission
Strength | Mutual
Conductance |
Description |
Notes
|
| 1 | 6SB7-Y | $5.00 | RCA | 120%/120% | 4600/4000Gm | NOS (OB) | metal - JAN - brown base
| | 1 | 6SB7-Y | $5.00 | RCA | 120%/110% | 4300/4000Gm | NOS (OB) | metal - silver lettering - brown base
| | 1 | 6SB7-Y | $5.00 | RCA | 120%/130% | 5000/4000Gm | NOS (OB) | metal - silver lettering - brown base
| | 1 | 6SB7-Y | $5.00 | RCA | 120%/130% | 4800/4000Gm | NOS (OB) | metal - red lettering - brown base
| | 1 | 6SB7-Y | $5.00 | RCA | 110%/120% | 4500/4000Gm | NOS (OB) | metal - red lettering - brown base
| | 1 | 6SB7-Y | $5.00 | RCA | 120%/130% | 5000/4000Gm | NOS (OB) | metal - red lettering - brown base
| | 1 | 6SB7-Y | $5.00 | RCA | 100%/110% | 4500/4000Gm | NOS (OB) | metal - red lettering - brown base
| | 1 | 6SB7-Y | $5.00 | Admiral | 120%/120% | 4800/4000Gm | NOS (OB) | metal - brown base - missing box flap
| | 1 | 6SB7-Y | $5.00 | Admiral | 110%/130% | 4700/4000Gm | NOS (OB) | metal - brown base
| | 1 | 6SB7-Y | $5.00 | Admiral | 110%/130% | 4800/4000Gm | NOS (OB) | metal - brown base
| | 1 | 6SB7-Y | $5.00 | Philco | 110%/120% | 4400/4000Gm | NOS (OB) | metal - brown base
| | 1 | 6SB7-Y | $5.00 | Raytheon | 110%/120% | 4500/4000Gm | NOS (OB) | metal - brown base
| | 1 | 6SB7-Y | $5.00 | Sylvania | 120%/130% | 4500/4000Gm | NOS (OB) | metal - brown base - yellow lettering
| | 1 | 6SB7-Y | $2.50 | RCA | 120%/140% | 5000/4000Gm | used (OB) | metal - silver lettering - brown base
| | 1 | 6SB7-Y | $2.50 | Sylvania | 100%/120% | 4500/4000Gm | used (OB) | metal - green lettering - brown base
| | 1 | 6SB7-Y | $1.00 | Admiral | 110%/90% | 3700/4000Gm | used (OB) | metal - brown base
| | 1 | 6SB7-Y | $1.00 | RCA | 90%/100% | 5000/4000Gm | used (rb) | metal - silver lettering - brown base
| | 1 | 6SG7-GT | $5.00 | National Union | 100% | 4000/3300Gm | NOS (OB) | metal base band - JAN
| | 1 | 6SG7-Y | $6.00 | RCA | 110% | 4400/3300Gm | NOS (OB) | metal - JAN - brown base
| | 1 | 6SG7-Y | $6.00 | RCA | 120% | 4300/3300Gm | NOS (wb) | metal - JAN - brown base
| | 1 | 6SG7/VT-211 | $6.00 | RCA | 120% | 4100/3300Gm | NOS (wb) | metal - JAN
| | 1 | 6SG7/VT-211 | $6.00 | RCA | 130% | 3900/3300Gm | NOS (OB) | metal - JAN
| | 1 | 6SG7/VT-211 | $6.00 | RCA | 110% | 3800/3300Gm | NOS (OB) | metal - JAN
| | 1 | 6SG7/VT-211 | $6.00 | RCA | 120% | 3800/3300Gm | NOS (OB) | metal - JAN
| | 1 | 6SG7/VT-211 | $6.00 | RCA | 120% | 3700/3300Gm | NOS (OB) | metal - JAN
| | 1 | 6SG7/VT-211 | $6.00 | RCA | 110% | 3600/3300Gm | NOS (OB) | metal - JAN
| | 1 | 6SG7/VT-211 | $6.00 | Ken-Rad | 120% | 3800/3300Gm | NOS (OB) | metal - JAN
| | 1 | 6SG7 | $5.00 | RCA | 120% | 3800/3300Gm | NOS (OB) | metal - silver lettering
| | 1 | 6SG7 | $5.00 | RCA | 120% | 4500/3300Gm | NOS (OB) | metal - silver lettering
| | 1 | 6SG7 | $5.00 | RCA | 120% | 4400/3300Gm | NOS (OB) | metal - silver lettering
| | 1 | 6SG7 | $5.00 | RCA | 120% | 4600/3300Gm | NOS (OB) | metal - silver lettering
| | 1 | 6SG7 | $5.00 | RCA | 120% | 4400/3300Gm | NOS (OB) | metal - silver lettering
| | 1 | 6SG7 | $5.00 | RCA | 120% | 4300/3300Gm | NOS (OB) | metal - silver lettering
| | 1 | 6SG7 | $5.00 | RCA | 110% | 4200/3300Gm | NOS (OB) | metal - silver lettering
| | 1 | 6SG7 | $5.00 | RCA | 120% | 4500/3300Gm | NOS (OB) | metal - silver lettering
| | 1 | 6SG7 | $5.00 | RCA | 120% | 3900/3300Gm | NOS (OB) | metal - silver lettering
| | 1 | 6SG7 | $5.00 | RCA | 130% | 4500/3300Gm | NOS (OB) | metal - silver lettering
| | 1 | 6SG7 | $5.00 | RCA | 125% | 4600/3300Gm | NOS (OB) | metal - silver lettering
| | 1 | 6SG7 | $5.00 | RCA | 120% | 4400/3300Gm | NOS (OB) | metal - red lettering
| | 1 | 6SG7 | $5.00 | Raytheon | 130% | 4500/3300Gm | NOS (OB) | metal
| | 1 | 6SG7 | $5.00 | Raytheon | 110% | 3900/3300Gm | NOS (OB) | metal
| | 1 | 6SG7 | $5.00 | Raytheon | 115% | 3500/3300Gm | NOS (OB) | metal
| | 1 | 6SG7 | $5.00 | Ken-Rad | 120% | 4100/3300Gm | NOS (OB) | metal
| | 1 | 6SG7 | $5.00 | Philco | 110% | 3600/3300Gm | NOS (OB) | metal - torn box flap
| | 1 | 6SG7 | $5.00 | Philco | 120% | 4600/3300Gm | NOS (OB) | metal
| | 1 | 6SG7 | $5.00 | Motorola | 140% | 5000/3300Gm | NOS (OB) | metal
| | 1 | 6SG7 | $5.00 | Motorola | 130% | 4500/3300Gm | NOS (OB) | metal
| | 1 | 6SG7 | $5.00 | Westinghouse | 120% | 3900/3300Gm | NOS (OB) | metal
| | 1 | 6SG7 | $5.00 | Zenith | 120% | 4400/3300Gm | NOS (OB) | metal
| | 1 | 6SG7 | $5.00 | Tung-Sol | 130% | 4500/3300Gm | NOS (OB) | metal
| | 1 | 6SG7 | $5.00 | GE | 110% | 3600/3300Gm | NOS (OB) | metal - white lettering
| | 1 | 6SG7 | $5.00 | GE | 120% | 3800/3300Gm | NOS (OB) | metal - white lettering
| | 1 | 6SG7 | $5.00 | Sylvania | 110% | 4100/3300Gm | NOS (OB) | metal - yellow lettering
| | 1 | 6SG7 | $5.00 | Sylvania | 130% | 3900/3300Gm | NOS (OB) | metal - yellow lettering
| | 1 | 6SG7 | $5.00 | Sylvania | 110% | 3500/3300Gm | NOS (OB) | metal - yellow lettering
| | 1 | 6SG7 | $5.00 | Sylvania | 110% | 3700/3300Gm | NOS (OB) | metal - green lettering
| | 1 | 6SG7 | $5.00 | Sylvania | 110% | 3700/3300Gm | NOS (OB) | metal - green lettering
| | 1 | 6SG7-GT | $2.50 | National Union | 100% | 2600/3300Gm | used (wb) | metal base band - JAN
| | 1 | 6SG7-GT | $2.50 | National Union | 100% | 2800/3300Gm | used (wb) | metal base band
| | 1 | 6SG7-Y | $2.50 | RCA | 110% | 4100/3300Gm | used (wb) | metal - JAN - brown base
| | 1 | 6SG7-Y | $2.50 | RCA | 120% | 4000/3300Gm | used (wb) | metal - JAN - brown base
| | 1 | 6SG7/VT-211 | $2.50 | RCA | 110% | 3800/3300Gm | used (rb) | metal - JAN
| | 1 | 6SG7/VT-211 | $2.50 | RCA | 110% | 3900/3300Gm | used (rb) | metal - JAN
| | 1 | 6SG7/VT-211 | $2.50 | RCA | 105% | 3400/3300Gm | used (rb) | metal - JAN
| | 1 | 6SG7/VT-211 | $2.50 | RCA | 110% | 3600/3300Gm | used (rb) | metal - JAN
| | 1 | 6SG7/VT-211 | $2.50 | Ken-Rad | 120% | 4000/3300Gm | used (rb) | metal
| | 1 | 6SG7/VT-211 | $2.00 | RCA | 105% | 3800/3300Gm | used (L) | metal - JAN
| | 1 | 6SG7 | $2.00 | RCA | 115% | 3800/3300Gm | used (rb) | metal - US Navy
| | 1 | 6SG7 | $2.00 | RCA | 100% | 3800/3300Gm | used (rb) | metal - silver lettering
| | 1 | 6SG7 | $2.00 | RCA | 110% | 3800/3300Gm | used (rb) | metal - silver lettering
| | 1 | 6SG7 | $2.00 | RCA | 110% | 3400/3300Gm | used (rb) | metal - silver lettering
| | 1 | 6SG7 | $2.00 | RCA | 100% | 3300/3300Gm | used (wb) | metal - silver lettering
| | 1 | 6SG7 | $2.00 | RCA Victor | 100% | 3400/3300Gm | used (ob) | metal
| | 1 | 6SG7 | $2.00 | GE | 120% | 3000/3300Gm | used (ob) | metal - white lettering
| | 1 | 6SG7 | $2.00 | GE | 110% | 3800/3300Gm | used (rb) | metal - white lettering
| | 1 | 6SG7 | $2.00 | GE | 110% | 3600/3300Gm | used (rb) | metal - white lettering
| | 1 | 6SG7 | $2.00 | GE | 105% | 3500/3300Gm | used (rb) | metal - white lettering
| | 1 | 6SG7 | $2.00 | Sylvania | 105% | 3200/3300Gm | used (rb) | metal - yellow lettering
| | 1 | 6SG7 | $2.00 | Sylvania | 110% | 3700/3300Gm | used (rb) | metal - green lettering
| | 1 | 6SG7 | $2.00 | Magnavox | 100% | 3000/3300Gm | used (rb) | metal
| | 1 | 6SG7 | $2.00 | Cunningham | 115% | 3400/3300Gm | used (rb) | metal
| | 1 | 6SG7/VT-211 | $2.00 | RCA | 105% | 3800/3300Gm | used (L) | metal - JAN
| | 1 | 6SG7 | $2.00 | RCA | 110% | 3800/3300Gm | used (L) | metal - silver lettering
| | 1 | 6SG7 | $2.00 | RCA | 100% | 3400/3300Gm | used (L) | metal - silver lettering - JAN
| | 1 | 6SG7 | $2.00 | RCA | 105% | 2700/3300Gm | used (L) | metal - silver lettering
| | 1 | 6SG7 | $2.00 | GE | 100% | 3600/3300Gm | used (L) | metal - white lettering
| | 1 | 6SG7 | $2.00 | CBS | 100% | 4000/3300Gm | used (L) | metal
| | 1 | 6SG7 | $2.00 | Admiral | 100% | 3500/3300Gm | used (L) | metal
| | 1 | 6SG7/VT-211 | $1.00 | RCA | 90% | 2800/3300Gm | used (L) | metal - JAN
| | 1 | 6SG7 | $1.00 | RCA | 90% | 3000/3300Gm | used (L) | metal - silver lettering
| | 1 | 6SG7 | $1.00 | RCA | 90% | 3200/3300Gm | used (L) | metal - silver lettering
| | 1 | 6SG7 | $1.00 | GE | 90% | 2800/3300Gm | used (L) | metal - white lettering
| | 1 | 6SG7 | $1.00 | GE | 90% | 2800/3300Gm | used (L) | metal - white lettering
| | 1 | 6SG7 | $1.00 | Ken-Rad | 90% | 3000/3300Gm | used (L) | metal - JAN
| | 1 | 6SG7 | $1.00 | Westinghouse | 90% | 3300/3300Gm | used (L) | metal
| | 1 | 6SG7 | $0.50 | GE | 85% | 2600/3300Gm | used (L) | metal - white lettering
| | 1 | 6SG7 | $0.50 | Cbs/Hytron | 130% | 2800/3300Gm | used (ob) | metal
| | 1 | 6SG7 | $0.50 | RCA | 100% | 3500/3300Gm | used (L) | metal - silver lettering - minor rust on tube
| | 1 | 12SG7-Y | $5.00 | RCA | 120% | 4700/3300Gm | NOS (OB) | metal - JAN - brown base
| | 1 | 12SG7-Y | $5.00 | RCA | 120% | 4500/3300Gm | NOS (OB) | metal - JAN - brown base
| | 1 | 12SG7-Y | $5.00 | RCA | 115% | 5200/3300Gm | NOS (OB) | metal - JAN - brown base
| | 1 | 12SG7-Y | $5.00 | RCA | 115% | 4300/3300Gm | NOS (OB) | metal - JAN - brown base
| | 1 | 12SG7-Y | $5.00 | RCA | 115% | 4200/3300Gm | NOS (OB) | metal - JAN - brown base
| | 1 | 12SG7-Y | $5.00 | GE | 110% | 3600/3300Gm | NOS (OB) | metal - JAN - brown base
| | 1 | 12SG7-Y | $5.00 | Ken-Rad | 120% | 3800/3300Gm | NOS (OB) | metal - JAN - brown base
| | 1 | 12SG7/VT209 | $5.00 | RCA | 120% | 4200/3300Gm | NOS (OB) | metal - JAN
| | 1 | 12SG7/VT209 | $5.00 | RCA | 110% | 4100/3300Gm | NOS (OB) | metal - JAN
| | 1 | 12SG7/VT209 | $5.00 | RCA | 120% | 4100/3300Gm | NOS (OB) | metal - JAN
| | 1 | 12SG7/VT209 | $5.00 | RCA | 110% | 4000/3300Gm | NOS (OB) | metal - JAN
| | 1 | 12SG7/VT209 | $5.00 | RCA | 110% | 3800/3300Gm | NOS (OB) | metal - JAN
| | 1 | 12SG7/VT209 | $5.00 | RCA | 110% | 3800/3300Gm | NOS (OB) | metal - JAN
| | 1 | 12SG7/VT209 | $5.00 | RCA | 110% | 4000/3300Gm | NOS (OB) | metal - JAN
| | 1 | 12SG7/VT209 | $5.00 | RCA | 110% | 3800/3300Gm | NOS (OB) | metal - JAN
| | 1 | 12SG7/VT209 | $5.00 | RCA | 120% | 4100/3300Gm | NOS (OB) | metal - JAN
| | 1 | 12SG7/VT209 | $5.00 | RCA | 130% | 3600/3300Gm | NOS (OB) | metal - JAN
| | 1 | 12SG7/VT209 | $5.00 | RCA | 115% | 3900/3300Gm | NOS (OB) | metal - JAN
| | 1 | 12SG7 | $4.00 | RCA Victor | 120% | 4100/3300Gm | NOS (OB) | metal - missing box flap
| | 1 | 12SG7 | $4.00 | RCA | 130% | 5000/3300Gm | NOS (OB) | metal - silver lettering
| | 1 | 12SG7 | $4.00 | Ken-Rad | 110% | 3800/3300Gm | NOS (OB) | metal - sealed in box
| | 1 | 12SG7 | $4.00 | GE | 110% | 4200/3300Gm | NOS (OB) | metal - white lettering
| | 1 | 12SG7 | $4.00 | GE | 110% | 4000/3300Gm | NOS (OB) | metal - white lettering
| | 1 | 12SG7 | $4.00 | GE | 110% | 4000/3300Gm | NOS (OB) | metal - white lettering
| | 1 | 12SG7 | $4.00 | GE | 110% | 4000/3300Gm | NOS (OB) | metal - white lettering
| | 1 | 12SG7 | $4.00 | GE | 110% | 3900/3300Gm | NOS (OB) | metal - white lettering
| | 1 | 12SG7 | $4.00 | GE | 110% | 3900/3300Gm | NOS (OB) | metal - white lettering
| | 1 | 12SG7 | $4.00 | GE | 110% | 3800/3300Gm | NOS (OB) | metal - white lettering
| | 1 | 12SG7 | $4.00 | RCA | 120% | 4200/3300Gm | NOS (OB) | metal - red lettering
| | 1 | 12SG7 | $4.00 | RCA | 120% | 4200/3300Gm | NOS (OB) | metal - silver lettering
| | 1 | 12SG7 | $4.00 | RCA | 110% | 4200/3300Gm | NOS (OB) | metal - red lettering
| | 1 | 12SG7 | $4.00 | RCA | 120% | 4500/3300Gm | NOS (OB) | metal - red lettering
| | 1 | 12SG7 | $4.00 | Philco | 110% | 3400/3300Gm | NOS (OB) | metal
| | 1 | 12SG7 | $4.00 | Dumont | 110% | 3300/3300Gm | NOS (OB) | metal
| | 1 | 12SG7 | $4.00 | Raytheon | 110% | 4200/3300Gm | NOS (OB) | metal
| | 1 | 12SG7 | $4.00 | Raytheon | 120% | 4600/3300Gm | NOS (OB) | metal
| | 1 | 12SG7 | $4.00 | Westinghouse | 110% | 4200/3300Gm | NOS (OB) | metal
| | 1 | 12SG7 | $4.00 | Tung-Sol | 110% | 3400/3300Gm | NOS (OB) | metal
| | 1 | 12SG7 | $4.00 | Tung-Sol | 110% | 3600/3300Gm | NOS (OB) | metal
| | 1 | 12SG7 | $4.00 | Tung-Sol | 110% | 4000/3300Gm | NOS (OB) | metal
| | 1 | 12SG7 | $4.00 | Tung-Sol | 110% | 4800/3300Gm | NOS (OB) | metal
| | 1 | 12SG7 | $4.00 | Sylvania | 120% | 4500/3300Gm | NOS (OB) | metal - yellow lettering
| | 1 | 12SG7 | $4.00 | Sylvania | 110% | 4500/3300Gm | NOS (OB) | metal - yellow lettering
| | 1 | 12SG7 | $4.00 | Sylvania | 110% | 4200/3300Gm | NOS (OB) | metal - yellow lettering
| | 1 | 12SG7-Y | $2.50 | RCA | 110% | 4400/3300Gm | used (wb) | metal - JAN - brown base
| | 1 | 12SG7-Y | $2.50 | RCA | 125% | 4800/3300Gm | used (wb) | metal - JAN - brown base
| | 1 | 12SG7-Y | $2.50 | GE | 110% | 3600/3300Gm | used (wb) | metal - JAN - brown base
| | 1 | 12SG7-Y | $2.50 | GE | 100% | 3500/3300Gm | used (OB) | metal - JAN - brown base
| | 1 | 12SG7-Y | $2.50 | GE | 120% | 3300/3300Gm | used (wb) | metal - JAN - brown base
| | 1 | 12SG7/VT209 | $2.00 | RCA | 120% | 4400/3300Gm | used (rb) | metal - JAN
| | 1 | 12SG7/VT209 | $2.00 | RCA | 100% | 3800/3300Gm | used (OB) | metal - JAN
| | 1 | 12SG7/VT209 | $2.00 | RCA | 105% | 4000/3300Gm | used (OB) | metal - JAN
| | 1 | 12SG7/VT209 | $2.00 | RCA | 105% | 3800/3300Gm | used (OB) | metal - JAN
| | 1 | 12SG7/VT209 | $2.00 | RCA | 120% | 4100/3300Gm | used (OB) | metal - JAN
| | 1 | 12SG7/VT209 | $2.00 | RCA | 130% | 4200/3300Gm | used (OB) | metal - JAN
| | 1 | 12SG7/VT209 | $2.00 | RCA | 100% | 3800/3300Gm | used (wb) | metal - US Army
| | 1 | 12SG7/VT209 | $2.00 | RCA | 100% | 3500/3300Gm | used (wb) | metal - JAN
| | 1 | 12SG7/VT209 | $2.00 | RCA | 100% | 3800/3300Gm | used (OB) | metal - US Army
| | 1 | 12SG7/VT209 | $2.00 | RCA | 110% | 3800/3300Gm | used (rb) | metal - JAN - minor rust on tube
| | 1 | 12SG7/VT209 | $2.00 | RCA | 100% | 3600/3300Gm | used (wb) | metal - JAN
| | 1 | 12SG7/VT209 | $2.00 | RCA | 100% | 3400/3300Gm | used (wb) | metal - JAN
| | 1 | 12SG7/VT209 | $2.00 | Ken-Rad | 110% | 3600/3300Gm | used (OB) | metal
| | 1 | 12SG7/VT209 | $2.00 | Ken-Rad | 110% | 4000/3300Gm | used (OB) | metal - JAN
| | 1 | 12SG7/VT209 | $2.00 | Ken-Rad | 100% | 3600/3300Gm | used (OB) | metal
| | 1 | 12SG7/VT209 | $2.00 | Ken-Rad | 120% | 3100/3300Gm | used (OB) | metal - JAN
| | 1 | 12SG7/VT209 | $2.00 | Ken-Rad | 110% | 4000/3300Gm | used (OB) | metal - JAN
| | 1 | 12SG7/VT209 | $2.00 | Ken-Rad | 105% | 3800/3300Gm | used (wb) | metal
| | 1 | 12SG7 | $2.00 | Sylvania | 110% | 3000/3300Gm | used (OB) | metal - yellow lettering
| | 1 | 12SG7 | $2.00 | Sylvania | 110% | 3300/3300Gm | used (OB) | metal - green lettering
| | 1 | 12SG7 | $2.00 | Wards Airline | 100% | 3400/3300Gm | used (rb) | metal
| | 1 | 12SG7 | $2.00 | Hallicrafters | 110% | 4200/3300Gm | used (rb) | metal
| | 1 | 12SG7 | $2.00 | Ken-Rad | 120% | 4100/3300Gm | used (rb) | metal
| | 1 | 12SG7 | $2.00 | GE | 110% | 3400/3300Gm | used (rb) | metal - white lettering
| | 1 | 12SG7 | $2.00 | GE | 105% | 3600/3300Gm | used (rb) | metal - orange lettering
| | 1 | 12SG7 | $2.00 | GE | 120% | 3300/3300Gm | used (wb) | metal - red lettering
| | 1 | 12SG7 | $2.00 | GE | 110% | 3600/3300Gm | used (rb) | metal - white lettering
| | 1 | 12SG7 | $0.50 | GE | 90% | 3000/3300Gm | used (rb) | metal - white lettering
| | 1 | 12SG7 | $0.50 | Western Union | 90% | 3000/3300Gm | used (rb) | metal
| | 1 | 12SG7 | $0.50 | Sylvania | 90% | 3000/3300Gm | used (OB) | metal - yellow lettering
| | 1 | 12SG7 | $0.50 | Sylvania | 115% | 2500/3300Gm | used (OB) | metal - green lettering
| | 1 | 12SG7/VT209 | $2.00 | Ken-Rad | 110% | 3600/3300Gm | used (L) | metal - US Army
| | 1 | 12SG7/VT209 | $2.00 | Ken-Rad | 110% | 4000/3300Gm | used (L) | metal - US Army
| | 1 | 12SG7/VT209 | $2.00 | Ken-Rad | 110% | 3700/3300Gm | used (L) | metal - US Army
| | 1 | 12SG7/VT209 | $2.00 | GE | 100% | 3800/3300Gm | used (L) | metal - white lettering
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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 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.
Contact MDB Ventures sales@mdbventures.com
Due to the highly volatile nature of the tube business, all Prices are subject to change without notice.
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