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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
|
| 1 | 3B22 | $20.00 | Dumont | 110% | --- | NOS (OB) | (cat:K2)
| | 1 | 3B24 | $10.00 | Raytheon | 150% | --- | NOS (OB) | JAN (cat:K2)
| | 1 | 24 | $5.00 | Heintz Kaufman | 100% | --- | used (L) | (cat:Ka) - similar to 3C24
| | 1 | 3C45/HP45 | $5.00 | Kuthe Laboratories | 120% | --- | used (rb) | (cat:K2)
| | 1 | 3CX100A5/7289 | $40.00 | Eimac | untested | heater ok | NOS (OB) | (cat:K1) see 2C39WA
| | 1 | 4-125 | $20.00 | Eimac | untested | heater ok | used (wb) | (cat:K2)
| | 1 | 4CX250B/7203 | $50.00 | Eimac | untested | heater ok | NOS (OB) | (cat:K1) JAN
| | 1 | 4CX250B | $20.00 | Eimac | untested | heater ok | used (L) | (cat:K1)
| | 1 | 4CX350FJ/8904 | $15.00 | Eimac | untested | heater ok | used (L) | clean (cat:K1)
| | 1 | 4CX350FJ/8904 | $15.00 | Eimac | untested | heater ok | used (L) | clean (cat:K1)
| | 1 | 4PR60A | $40.00 | Eimac | untested | heater ok | used (L) | (cat:K1)
| | 1 | 4X150A/7034 | $40.00 | Eimac | 120% | --- | NOS (ob) | (cat:K2)
| | 1 | 4X150A/7034 | $40.00 | Eimac | 140% | --- | NOS (ob) | (cat:K2)
| | 1 | 4X150A | $40.00 | unknown | untested | sealed | NOS (ob) | JAN - sealed in foil packet - no box (cat:K2)
| | 1 | 4X150A | $10.00 | Eimac | 110% | --- | used (wb) | (cat:K2)
| | 1 | 4X150A/7034 | $10.00 | Eimac | 140% | --- | used (wb) | (cat:K2)
| | 1 | 4X150A | $10.00 | Eimac | 100% | --- | used (L) | (cat:K2 - bx)
| | 1 | 4X150A | $10.00 | Eimac | 110% | --- | used (L) | (cat:K2 - bx)
| | 1 | 4X150A | $10.00 | RCA | 110% | --- | used (L) | (cat:K1-bg : 504-9)
| | 1 | 4X150A | $10.00 | RCA | 120% | --- | used (L) | (cat:K1-bg : 504-11)
| | 1 | 4X150A | $5.00 | Eimac | 110% | --- | used (L) | (cat:K1-bg : 504-12) - slight dent in radiator shell
| | 1 | 4X150A | $5.00 | Eimac | 120% | --- | used (L) | (cat:K1-bg : 504-13) - slight dent in radiator shell
| | 1 | 4X150A | $5.00 | unknown | 105% | --- | used (L) | (cat:K1-bg : 504-15) JAN
| | 1 | 4X150A | $5.00 | unknown | 90% | --- | used (L) | (cat:K1-bg : 504-14) JAN
| | 1 | 4X150A | $5.00 | unknown | untested | heater ok | used (L) | (cat:K2)
| | 1 | 313C | $5.00 | Western Electric | untested | --- | NOS (OB) | (cat:K2) thyratron
| | 1 | 313C | $1.00 | Western Electric | untested | --- | used (L) | (cat:K2) thyratron
| | 1 | 416A | $2.00 | Western Electric | untested | heater ok | used (L) | (cat:K1)
| | 1 | 416A | $2.00 | Western Electric | untested | heater ok | used (L) | (cat:K1)
| | 1 | 416A | $2.00 | Western Electric | untested | heater ok | used (L) | (cat:K1)
| | 1 | 416A | $2.00 | Western Electric | untested | heater ok | used (L) | (cat:K1)
| | 1 | 416A | $2.00 | Western Electric | untested | heater ok | used (L) | (cat:K1)
| | 1 | 416A | $2.00 | Western Electric | untested | heater ok | used (L) | (cat:K1)
| | 1 | 416B | $2.00 | Western Electric | untested | heater ok | used (L) | (cat:K1)
| | 1 | 416B | $2.00 | Western Electric | untested | heater ok | used (L) | (cat:K1)
| | 1 | 416B | $2.00 | Western Electric | untested | heater ok | used (L) | (cat:K1)
| | 1 | 416B | $2.00 | Western Electric | untested | heater ok | used (L) | (cat:K1)
| | 1 | 416B | $2.00 | Western Electric | untested | heater ok | used (L) | (cat:K1)
| | 1 | 416B | $2.00 | Western Electric | untested | heater ok | used (L) | (cat:K1)
| | 1 | 416B | $2.00 | Western Electric | untested | heater ok | used (L) | (cat:K1)
| | 1 | 416B | $2.00 | Western Electric | untested | heater ok | used (L) | (cat:K1)
| | 1 | WL-532 | $5.00 | Westinghouse | untested | spark gap | NOS (OB) | (cat:K1)
| | 1 | WL-532 | $5.00 | Westinghouse | untested | spark gap | NOS (OB) | (cat:K1)
| | 1 | WL-532 | $5.00 | Westinghouse | untested | spark gap | NOS (OB) | (cat:K1)
| | 1 | WL-532-A | $1.00 | Westinghouse | untested | spark gap | used (L) | (cat:K1)
| | 1 | WL-532-A | $1.00 | Westinghouse | untested | spark gap | used (L) | (cat:K1)
| | 1 | 703A | $25.00 | Tung-Sol | untested | heater ok | used (ob) | (cat:k1 : 504-21) "UFO" tube
| | 1 | 715B | $15.00 | Raytheon | untested | heater ok | used (L) | (cat:K1)
| | 1 | 715B | $15.00 | Raytheon | untested | heater ok | used (L) | (cat:K1)
| | 1 | 715B | $15.00 | Raytheon | untested | heater ok | used (L) | (cat:K1)
| | 1 | 715B | $15.00 | Raytheon | untested | heater ok | used (L) | (cat:K1)
| | 1 | 715B | $15.00 | Raytheon | untested | heater ok | used (L) | (cat:K1)
| | 1 | 715B | $15.00 | Raytheon | untested | heater ok | used (L) | (cat:K1)
| | 1 | 812-A | $20.00 | RCA | 95% | 2100/2200Gm | used (L) | (cat:K2)
| | 1 | 830-B | $50.00 | Amperex | 110% | --- | NOS (wb) | (cat:K2) graphite plate - brown base - bayonet
| | 1 | 830-B | $45.00 | Continental Electric | 110% | --- | NOS (wb) | JAN (cat:Lo) graphite plate - black base - bayonet
| | 1 | 830-B | $45.00 | United Electronics | 110% | --- | NOS (wb) | JAN (cat:Lo) graphite plate - brown base - bayonet
| | 1 | 5894 | $20.00 | Philips | 150%/120% | --- | used (rb) | (cat:K2)
| | 1 | 5894 | $20.00 | Philips | 120%/120% | --- | used (rb) | (cat:K2)
| | 1 | 5946 | $20.00 | RCA | untested | heater ok | used (L) | (cat:K1) ceramic tube
| | 1 | 5946 | $20.00 | RCA | untested | heater ok | used (L) | (cat:K1) ceramic tube
| | 1 | 5946 | $20.00 | RCA | untested | heater ok | used (L) | (cat:K1) ceramic tube
| | 1 | 5946 | $20.00 | RCA | untested | heater ok | used (L) | (cat:K1) ceramic tube
| | 1 | 6524 | $5.00 | RCA | untested | heater ok | used (rb) | (cat:K2)
| | 1 | 7901/MPT-13 | $5.00 | Metcom | untested | spark gap | used (L) | (cat:K1) similar to BLT004A - gas switching TR
| | 1 | 8013A | $18.00 | Cetron | 100% | --- | NOS (OB) | JAN (cat:K2)
| | 1 | 8025A | $40.00 | Slater | 120% | NOS (OB) | JAN (cat:K2) damaged box |
| | 1 | 8560A | $10.00 | Amperex | untested | heater ok | used (L) | (cat:K1)
| | 1 | 8560A | $15.00 | Amperex | 120% | --- | used (L) | (cat:K1 : 504-5)
| | 1 | D-178461 | $50.00 | Western Electric | untested | heater ok | looks NOS (OB) | (cat:K2) Klystron
| | 1 | 2K25 | $50.00 | Klystronics for Future Electronics | untested | heater ok | looks NOS (OB) | (cat:K2 - 401-243) Klystron
| | 1 | HY-65 | $20.00 | Hytron | 110% | --- | NOS (OB) | (cat:K2) JAN ceramic base
| | 1 | HY-65 | $10.00 | Hytron | 110% | --- | used (rb) | (cat:K2) ceramic base
| | 1 | HY-65 | $5.00 | Hytron | 90% | --- | used (L) | (cat:K2) ceramic base - broken locator pin
| | 1 | RK-20 | $45.00 | Raytheon | 100% | --- | used (L) | cat:k1 - 401-399) ceramic base
| | 1 | RK-72 | $10.00 | Raytheon | 100% | --- | NOS (wb) | (cat:K2 - 401-243)
| | 1 | RSA0021 | $5.00 | Huges | untested | --- | used (L) | 925316-1 (cat:K1) 64-16 ser.no.C651
|
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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