Antique radios, Old Time Radios
HK257
|
Country:
United States of America (USA)
|
|
| Identical to |
HK257
= CV824
= 8001
|
| Similar
Tubes |
Normally replaceable-slightly different:
4E27
|
| Base |
(Codex=My)
Top contact with a cap.
|
| Was used by |
Transmittertube (Radio) |
| Filament |
Vf 5 Volts / If 7.5 Ampere / Direct |
| Description |
125W, 75MHz. Jumbo 7 pin base. Heintz & Kaufman coding for 4E27.
Note: Sibley gives 5 pin base for 4E27 and equivalent tubes (?).
|
Dimensions (WHD)
incl. pins / tip |
x 149 x 68 mm / x 5.87 x 2.68 inch |
| Information source |
Taschenbuch zum Röhren-Codex 1948/49
Tube Lore (I) p. 217
|
|
HK257: Tabu Röhren-Codex, 1948
Anonymous 15 Collector
More ...
|
|
|
|
|
|
|
You reach this tube or valve page from a search
after clicking the "tubes" tab or by clicking a tube
on a radio model page. You will find thousands
of tubes or valves with interesting links. You
even can look up radio models with a certain tube
line up.
[rmxtube-en]
| Data Compliance |
More Information |
|
|
|
