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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, Nuvistor, subminiature, metal, power, transmitter tubes and many more.
MDB Ventures Industrial, Ham Radio Transmitter and Power Tubes
Quantity Available | Tube Type | Price Each | Tube Brand | Emission Strength | Mutual Conductance | Description | Notes
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| 1 | 1A3 | $1.00 | RCA | 100% | --- | NOS (OB) | JAN - white lettering
| | 1 | 1A3 | $1.00 | RCA | 110% | --- | NOS (OB) | US Army/US Navy - white lettering (tx:3)
| | 1 | 1A3 | $1.00 | RCA | 110% | --- | NOS (OB) | US Army/US Navy - white lettering (tx:3)
| | 1 | 1A3 | $1.00 | RCA | 110% | --- | NOS (OB) | US Army/US Navy - white lettering (tx:3)
| | 1 | 1A3 | $1.00 | RCA | 110% | --- | NOS (OB) | US Army/US Navy - white lettering (tx:3)
| | 1 | 1A3 | $1.00 | RCA | 110% | --- | NOS (OB) | US Army/US Navy - white lettering (tx:3)
| | 1 | 1A3 | $1.00 | RCA | 110% | --- | NOS (OB) | US Army/US Navy - white lettering (tx:3)
| | 1 | 1A3 | $1.00 | RCA | 115% | --- | NOS (OB) | US Army/US Navy - white lettering (tx:3)
| | 1 | 1A3 | $1.00 | RCA | 115% | --- | NOS (OB) | US Army/US Navy - white lettering (tx:3)
| | 1 | 1A3 | $1.00 | RCA | 120% | --- | NOS (OB) | white lettering (tx:3)
| | 1 | 1A3 | $1.00 | RCA | 110% | --- | NOS (OB) | white lettering (tx:3)
| | 1 | 1A3 | $1.00 | RCA | 110% | --- | NOS (OB) | white lettering (tx:3)
| | 1 | 1A3 | $1.00 | RCA | 110% | --- | NOS (OB) | JAN - green lettering (tx:3)
| | 1 | 1A3 | $1.00 | RCA | 110% | --- | NOS (OB) | JAN - green lettering (tx:3)
| | 1 | 1A3 | $1.00 | RCA | 110% | --- | NOS (OB) | JAN - green lettering (tx:3)
| | 1 | 1A3 | $1.00 | RCA | 110% | --- | NOS (OB) | JAN - green lettering (tx:3)
| | 1 | 1A3 | $1.00 | RCA | 100% | --- | NOS (OB) | JAN - green lettering (tx:3)
| | 1 | 1A3 | $1.00 | National Union | 110% | --- | NOS (OB) | US Army/US Navy (tx:3)
| | 1 | 1A3 | $1.00 | National Union | 110% | --- | NOS (OB) | US Army/US Navy (tx:3)
| | 1 | 1A3 | $1.00 | National Union | 110% | --- | NOS (OB) | US Army/US Navy (tx:3)
| | 1 | 1A3 | $1.00 | National Union | 115% | --- | NOS (OB) | US Army/US Navy (tx:3)
| | 1 | 1A3 | $1.00 | National Union | 120% | --- | NOS (OB) | US Army/US Navy - damaged box (tx:3)
| | 1 | 1A3 | $1.00 | National Union | 115% | --- | NOS (wb) | JAN (tx:3)
| | 1 | 1A3 | $1.00 | National Union | 120% | --- | NOS (wb) | --- (tx:3)
| | 1 | 1A3 | $0.50 | RCA | 120% | --- | used (rb) | JAN - black lettering (tx:3)
| | 1 | 1A3 | $0.50 | RCA | 110% | --- | used (L) | --- (tx:3)
| | 1 | 1A3 | $0.50 | RCA | 110% | --- | used (L) | --- (tx:3)
| | 1 | 1A3 | $0.50 | Sylvania | 115% | --- | used (L) | --- (tx:3)
| | 1 | 1A3 | $0.50 | Sylvania | 120% | --- | used (L) | --- (tx:3)
| | 1 | 1A3 | $0.50 | Crosley | 110% | --- | used (L) | --- (tx:3)
| | 1 | 1A3 | $0.50 | Emerson | 115% | --- | used (L) | --- (tx:3)
| | 1 | 1A3 | $0.50 | unknown | 110% | --- | used (L) | --- (tx:3)
| | 1 | 1B23 | $1.00 | Western Electric | untested | spark gap | used (L) | mount ring bent - US Navy
| | 14 | 1B32/532A | $5.00 each | Westinghouse | untested | spark gap | NOS (OB) | JAN (cat:tx-3a)
| | 1 | 1B32/532A | $5.00 | Westinghouse | untested | spark gap | NOS (OB) | JAN - box flap missing (cat:tx-3a)
| | 1 | 1B40 | $20.00 | Bomac | untested | TR tube | NOS (OB) | JAN - sealed in foil pouch
| | 1 | 1B59/R1130B | $10.00 | Sylvania | untested | modulator lamp diode | used (wb) | black coat
| | 1 | 1B59/R1130B | $10.00 | Sylvania | untested | modulator lamp diode | used (wb) | black coat
| | 1 | 3B2 | $2.50 | RCA | 120% | --- | NOS (OB) | NOS (OB)
| | 1 | 3B22 | $20.00 | Electrons Inc | 120% | --- | NOS (OB) | for Collins Radio
| | 1 | 3B24-W | $10.00 | Raytheon | 120% | --- | NOS (OB) | brown base - cat:401-328
| | 1 | 3B24-W | $10.00 | Raytheon | 120% | --- | NOS (OB) | JAN - brown base - cat:401-331
| | 1 | 3B24-W | $10.00 | Lewis Electroncis | 120% | --- | NOS (OB) | JAN - brown base
| | 1 | 3B24-W | $10.00 | Lewis Electroncis | 120% | --- | NOS (OB) | JAN - brown base
| | 1 | 3B24-W | $10.00 | Cetron | 120% | --- | NOS (OB) | JAN - brown base - cat:401-380
| | 1 | 3B24 | $5.00 | Raytheon | 175% | --- | used (L) | JAN - cat:401-1
| | 1 | 3B24 | $5.00 | Raytheon | 175% | --- | used (L) | JAN - cat:401-10
| | 1 | CW-3B24 | $8.00 | Western Electric | 100% | --- | used (L) | engraved base cat:402-8
| | 1 | CW-3B24 | $5.00 | Western Electric | 60% | --- | used (L) | engraved base cat:401-458
| | 1 | 3B25 | $5.00 | RCA | 110% | --- | used (rb) | US Navy
| | 1 | 3B26 | $10.00 | Raytheon | 120% | --- | NOS (wb) | ---
| | 1 | 3B26 | $10.00 | Raytheon | 120% | --- | NOS (ob) | damaged box
| | 1 | 3B29 | $20.00 | United Electronics | 120% | --- | NOS (wb) | graphite plate
| | 1 | 3B29 | $10.00 | General Electronics | 120% | --- | used (rb) | metal plate
| | 1 | 3C45 | $10.00 | Kuthe Laboratories | untested | heater ok | used (L) | brown base (see 6130)
| | 1 | 3C45 | $5.00 | Kuthe Laboratories | untested | heater ok | used (L) | brown base (see 6130) white particles inside
| | 1 | 6CF | $10.00 | Electrons | Inc | untested | heater ok | used (L)
| | 1 | 583 | $20.00 | Chatham Electronics | 120% | --- | NOS (wb) | ---
| | 1 | 606/7016 | $20.00 | Westinghouse | untested | heater ok | used (L) | ---
| | 1 | 6130 | $10.00 | Kuthe Laboratories | untested | heater ok | used (L) | brown base (3C45 with extended plate cap)
| | 1 | 8013-A | $10.00 | RCA | untested | heater ok | used | ---
| | 1 | 8013 | $10.00 | RCA | untested | heater ok | used (rb) | (cat:Le)
| | 1 | FG-81A | $10.00 | G.E. | 100% | --- | used (L) | ---
| | 1 | GLC1A | $10.00 | G.E. | untested | filament ok | used (L) | fires ok
| | 1 | RK-62 | $10.00 | Raytheon | 100% | --- | used (L) | ---
| | 1 | RKR-73 | $25.00 | Raytheon | untested | heater ok | NOS (OB) | US Navy - 28 May 1943 - Includes Navy documents - damaged box
| | 1 | RKR-73 | $25.00 | Raytheon | untested | heater ok | NOS (OB) | US Navy - 7 May 1943
| | 1 | RX-233/2C33 | $4.50 | Ratheon | 100% | --- | used (L) | ---
| | 1 | RX-233A/2C33 | $4.50 | Ratheon | 120% | --- | used (L) | ---
| | 1 | WE-721A | $5.00 | Western Electric | untested | spark gap | used (L) | mount ring bent - US Navy
| | 1 | WE-721A | $5.00 | Western Electric | untested | spark gap | used (L) | mount ring bent - US Navy
| | 1 | WE-721A | $2.50 | unknown | untested | spark gap | used (L) | mount ring bent
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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, 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 Industrial, Ham Radio Transmitter and Power 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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