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 4E27 / 257B $10.00 Heinz-Kaufman Gammatron untested heater ok used (rb) (cat:Lc)
1 4E27 / 257B $10.00 Heinz-Kaufman Gammatron untested heater ok used (rb) (cat:Lc)
1 705A $20.00 Tung-Sol untested heater ok unused (ob) appears to be unused (cat:Le) damaged box
1 705A $20.00 Lewis Kaufman untested heater ok used (L) (cat:Ka)
1 715B $20.00 Raytheon untested heater ok unused (ob) appears to be unused (cat:Lo) damaged box
1 725A $25.00 Western Electric untested heater ok NOS (OB) (cat:402-74:tx-k1) WWII Magnatron 9345 to 9405 MHz
1 802 $4.00 RCA / deForest 100% 1500 / 2000Gm used (L) (cat:Le) rattle - loose glass inside - bayonet pin
1 826 $20.00 Ken-Rad 110% --- NOS (ob) damaged box (cat:L1/tx16)
1 8000 $40.00 RCA untested heater ok used (OB) (cat:Lc)
1 8020 $20.00 GE 120% --- NOS (OB) (cat:Lo) US Navy
1 8020 $10.00 GE 130% --- used (ob) (cat:Lo) US Navy
1 8020 $8.00 GE 100% --- used (ob) (cat:Lo)
1 8462 $50.00 RCA untested heater ok NOS (OB) (cat:Lc)
1 CW-38412 $40.00 Western Electric 110% --- unused (L) appears unused (cat:Le) four pillar tube construction - US Navy - ser:2388 - ceramic base
1 HY-61 $10.00 Hytron 100% --- used (L) (cat:Le) ceramic base
1 HY-65 $20.00 Hytron 100% --- used (L) (cat:Lo)
1 HY-65 $20.00 Hytron 125% --- used (L) (cat:Le)
1 HY-69 $10.00 Hytron 110% --- used (L) (cat:Lo) ceramic base
1 HY-69 $10.00 Hytron 110% --- used (L) (cat:Lo) ceramic base
1 NL-5684 / C3J / A $10.00 National Electronics untested heater ok appears unused (ob) damaged box (cat:Lc)

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