Antique radios, Old Time Radios
PTT203
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Country:
France
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| Identical to |
PTT203
= R123
|
| Similar
Tubes |
Other base and data slightly different:
PTT205
|
| Base |
Octal (Int.Octal, IO) K8A, USA 1935
Top contact with a cap.
|
| Filament |
Vf 18 Volts / If 0.4 Ampere / Indirect / Specified voltage AC/DC |
| Description |
Long life pentode for power amplification.
The PTT203 is equivalent to the PTT205 except for the heater and the suppressor directly connected to the cathode.
Text in other
languages (may
differ)
|
| Information source |
Taschenbuch zum Röhren-Codex 1948/49
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PTT203: Technique de l'ingénieur
Patrice Zeissloff
More ...
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Just Qvigstad
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PTT203: Technique de l'ingénieur
Patrice Zeissloff
More ...
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