|
Type: 12A5 , 12A7 , 12Z3 ( NOS and Used )
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 Preoctal Tubes
Quantity
Available | Tube
Type | Price
Each | Tube
Brand | Emission
Strength | Mutual
Conductance |
Description |
Notes
|
| 1 | 12A5E | $5.00 | Philco | 120% | 2300/1800Gm | ST - NOS (OB) | cat:401-83-1
| | 1 | 12A5E | $5.00 | Philco | 120% | 2400/1800Gm | ST - NOS (OB) | cat:401-83-2
| | 1 | 12A5E | $5.00 | Philco | 120% | 2450/1800Gm | ST - NOS (OB) | cat:401-83-3
| | 1 | 12A5 | $4.25 | Cunningham | 100% | 2400/1800Gm | ST - NOS (OB) | sealed in box
| | 1 | 12A5 | $4.25 | Cunningham | 100% | 2200/1800Gm | ST - NOS (OB) | sealed in box
| | 1 | 12A5 | $4.25 | Philco | 120% | 2600/1800Gm | ST - NOS (OB) | sealed in box
| | 1 | 12A5 | $4.25 | Philco | 120% | 2500/1800Gm | ST - NOS (OB) | sealed in box
| | 1 | 12A5 | $4.25 | Ken-Rad | untested | heater ok | ST - NOS (OB) | sealed in box
| | 1 | 12A5 | $4.00 | Philco | 120% | 2400/1800Gm | ST - used (ob) | engraved base - damaged box
| | 1 | 12A5 | $12.00 | Raytheon | 110% | 2200/1800Gm | ST - used (wb) | four pillar tube - engraved base - cat:403-333
| | 1 | 12A5 | $12.00 | Raytheon | 110% | 2250/1800Gm | ST - used (wb) | four pillar tube - engraved base
| | 1 | 12A5 | $3.00 | Philco | 120% | 2700/1800Gm | ST - used (L) | engraved base cat:402-344
| | 1 | 12A5 | $3.00 | Tung-Sol | 120% | 2550/1800Gm | ST - used (L) | engraved base cat:402-343
| | 1 | 12A7 | $6.00 | Delco | 130%: diode 110% | 1600/610Gm | ST - NOS (OB) | (H) sealed in box
| | 1 | 12A7 | $6.00 | Philco | 110%: diode 110% | 1200/610Gm | ST - NOS (OB) | (H) sealed in box
| | 1 | 12A7 | $5.50 | GE | 110%: diode 110% | 1350/610Gm | ST - NOS (OB) | (H) damaged box
| | 1 | 12A7 | $5.50 | National Union | 120%: diode 110% | 1250/610Gm | ST - NOS (wb) | (H) engraved base
| | 1 | 12A7 | $5.50 | National Union | 120%: diode 120% | 1500/610Gm | ST - NOS (OB) | (H)
| | 1 | 12A7 | $5.50 | National Union | 110%: diode 115% | 1400/610Gm | ST - NOS (OB) | (H)
| | 1 | 12A7 | $5.50 | Ken-Rad | 120%: diode 120% | 1500/610Gm | ST - NOS (OB) | (H) sealed in box - damaged box
| | 1 | 12A7 | $6.00 | Sylvania | 115%: diode 110% | 1250/610Gm | ST - NOS (OB) | (H) sealed in box
| | 1 | 12A7 | $6.00 | Sylvania | 110%: diode 120% | 1250/610Gm | ST - NOS (OB) | (H) sealed in box
| | 1 | 12A7 | $5.50 | Sylvania | 115%: diode 110% | 1250/610Gm | ST - NOS (wb) | (H)
| | 1 | 12A7 | $5.50 | RCA | 120%: diode 110% | 1500/610Gm | ST - NOS (OB) | (H)
| | 1 | 12A7 | $5.50 | RCA | 120%: diode 110% | 1500/610Gm | ST - NOS (wb) | (H) cat:402-338
| | 1 | 12A7 | $5.50 | GE | 110%: diode 110% | 1350/610Gm | ST - NOS (wb) | (H)
| | 1 | 12A7 | $5.50 | Raytheon | 120%: diode 120% | 1500/610Gm | ST - NOS (wb) | (H)
| | 1 | 12A7 | $6.00 | Raytheon | 120%: diode 120% | 1650/610Gm | ST - NOS (OB) | (H) sealed in box
| | 1 | 12A7 | $3.50 | GE | 130%: diode 120% | 1600/610Gm | ST - used (ob) | (H) loose base - cat:402-341
| | 1 | 12A7 | $3.50 | Sylvania | 120%: diode 120% | 1300/610Gm | ST - used (rb) | (H)
| | 1 | 12A7 | $3.50 | Arcturus | 120%: diode 110% | 1350/610Gm | ST - used (rb) | (H) engraved base - cat:312-55
| | 1 | 12A7 | $2.50 | Tung-Sol | 90%: diode 100% | 1300/610Gm | ST - used (L) | (H) engraved base
| | 1 | 12A7 | $3.25 | RCA | 120%: diode 110% | 1500/610Gm | ST - used (L) | (H)
| | 1 | 12A7 | $3.25 | Cunningham | 120%: diode 110% | 1450/610Gm | ST - used (L) | (H)
| | 1 | 12A7 | $3.00 | National Union | 100%: diode 110% | 1100/610Gm | ST - used (L) | (H) engraved base
| | 1 | 12Z3 | $4.25 | National Union | 100% | --- | ST - NOS (OB) | engraved base
| | 1 | 12Z3 | $5.00 | RCA | 110% | --- | ST - NOS (OB) | sealed in box
| | 1 | 12Z3 | $4.75 | Philco | 110% | --- | ST - NOS (OB) | sealed in box - damaged box
| | 1 | 12Z3 | $5.00 | Philco | 110% | --- | ST - NOS (OB) | sealed in box
| | 1 | 12Z3 | $5.00 | Philco | 110% | --- | ST - NOS (OB) | engraved base
| | 1 | 12Z3 | $5.00 | Philco | 110% | --- | ST - NOS (OB) | engraved base
| | 1 | 12Z3 | $5.00 | Philco | 110% | --- | ST - NOS (OB) | engraved base
| | 1 | 12Z3 | $4.75 | Philco | 110% | --- | ST - NOS (OB) | engraved base - box flap missing
| | 1 | 12Z3 | $4.75 | Philco | 110% | --- | ST - NOS (OB) | cat:401-84-1
| | 1 | 12Z3 | $4.75 | Philco | 110% | --- | ST - NOS (OB) | cat:401-84-2 - damaged box
| | 1 | 12Z3 | $4.75 | Philco | 110% | --- | ST - NOS (OB) | cat:401-84-3
| | 1 | 12Z3 | $4.75 | Sylvania | 110% | --- | ST - NOS (OB) | ---
| | 1 | 12Z3 | $4.75 | Sylvania | 110% | --- | ST - NOS (OB) | ---
| | 1 | 12Z3 | $4.75 | Sylvania | 110% | --- | ST - NOS (OB) | ---
| | 1 | 12Z3 | $4.75 | Sylvania | 110% | --- | ST - NOS (OB) | ---
| | 1 | 12Z3 | $4.75 | Sylvania | 110% | --- | ST - NOS (OB) | ---
| | 1 | 12Z3 | $4.50 | Sylvania | 110% | --- | ST - NOS (OB) | water damaged box
| | 1 | 12Z3 | $4.50 | Sylvania | 110% | --- | ST - NOS (OB) | water damaged box
| | 1 | 12Z3 | $4.50 | Sylvania | 110% | --- | ST - NOS (OB) | water damaged box
| | 1 | 12Z3 | $4.50 | Sylvania | 110% | --- | ST - NOS (OB) | water damaged box
| | 1 | 12Z3 | $4.50 | Sylvania | 110% | --- | ST - NOS (OB) | water damaged box
| | 1 | 12Z3 | $4.50 | Sylvania | 110% | --- | ST - NOS (OB) | box flap missing
| | 1 | 12Z3 | $4.75 | Tung-Sol | 110% | --- | ST - NOS (OB) | ---
| | 1 | 12Z3 | $4.75 | Tung-Sol | 110% | --- | ST - NOS (OB) | ---
| | 1 | 12Z3 | $4.75 | Raytheon | 110% | --- | ST - NOS (OB) | cat:401-559
| | 1 | 12Z3 | $4.75 | Raytheon | 110% | --- | ST - NOS (OB) | cat:401-567
| | 1 | 12Z3 | $5.00 | RCA Victor | 110% | --- | ST - NOS (OB) | box flap missing
| | 1 | 12Z3 | $4.75 | National Union | 110% | --- | ST - NOS (OB) | ---
| | 1 | 12Z3 | $3.00 | Sylvania | 110% | --- | ST - used wb> | ---
| | 1 | 12Z3 | $3.00 | Hytron | 110% | --- | ST - used (wb) | ---
| | 1 | 12Z3 | $2.00 | RCA | 100% | --- | ST - used (L) | ---
| | 1 | 12Z3 | $2.00 | Super Silvertone | 100% | --- | ST - used (L) | ---
| | 1 | 12Z3 | $2.50 | Admiral | 110% | --- | ST - used (L) | cat:403-325
|
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, 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 preoctal 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.
Go back to the TOP
Preoctal and Globe/Balloon Vacuum Tube List
Shipping and Handling Information
MDB Ventures Home
Don't forget to visit our Discount Bargain Packs for more savings!
|
|