Antique radios, Old Time Radios
254
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Country:
United States of America (USA)
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| Identical to |
254
= 254W
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| Base |
Jumbo 4-pin bayonet (1918) (Codex=Bz)
Sidecontact and top contact.
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 5 Volts / If 7.5 Ampere / Direct / Specified voltage AND current AC/DC |
| Description |
The HK-254 is a 100 watt dissipation triode originally made by Heintz and Kaufman (Gammatron series) with a mu of 25 and a maximum frequency of 175 MHz for full ratings. Early versions had an open anode and no shield around the press. Tantalum plate and hard-glass, nonex envelope. 4-pin jumbo base.
Similar tubes were later made by:
Lewis and Kaufman (LK-254)
Eimac (254W)
Penta Labs (PL-254W)
Vacuum Tube Prod. Co. (254W)
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Dimensions (WHD)
incl. pins / tip |
x 184 x 62 mm / x 7.24 x 2.44 inch |
| Weight |
190 g / 6.70 oz |
| Information source |
- - Manufacturers Literature Undated data sheets
-- Original prospect or advert Electronics, June 1938
Taschenbuch zum Röhren-Codex 1948/49
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254: ARRL Handbook 1972
Anonymous 10 Collector
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Just Qvigstad
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254: Fin Stewart
Fin Stewart
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