MDB Ventures Industrial, Ham Radio Transmitter and Power 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 Industrial, Ham Radio Transmitter and Power Tubes
Qty
Avail
Tube
Type
Price
Each
Tube
Brand
Emission
Strength
Mutual
Conduct

Desc

Notes
1 3B22 $20.00 Dumont 110% --- NOS (OB) (cat:K2)
1 3B24 $10.00 Raytheon 150% --- NOS (OB) JAN (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 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 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)
1 830-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 452A $25.00 Klystron by Western Electric untested heater ok looks NOS (OB) (cat:K2) Klystron - ID=D-178461 - Ser#=11561
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, (TT)=Tall Tubular, (M7)=7pin miniature, (M9)=9pin miniature, (A)=Acorn, (N)=Nuvistor, (SM)=subminiature, 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.

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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Contact MDB Ventures
sales@mdbventures.com
or
sales@fourwater.com