Antique radios, Old Time Radios
CABL21
|
Country:
Netherlands
|
|
| Identical to |
CABL21
|
| Similar
Tubes |
Multiple differences or of other kind:
EABL21
; UBL21
|
|
Successor Tubes
|
1941
UBL21
|
| Base |
Loctal-9-Pin (B9G)
|
| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 42 Volts / If 0.2 Ampere / Indirect / Series, ~ = (AC/DC defined current) |
| Description |
The Philips 21- "Key Base" tubes were initially designed in 1940 with the 9-pin base B9G like the EF50. The later series production from 1942 on however was changed to the 8-pin Locktal-base B8G designed by Sylvania.
Instead of the later UBL21, the CABL21 was planned, containing 3 diodes especially for the then modern 3 diode- detector- circuit.
Text in other
languages (may
differ)
|
| Information source |
- - Manufacturers Literature 1940-1941
|
|
|
 |
|
CABL21: original Philips documents
Jacob Roschy
|
| |
|
CABL21: original Philips documents
Jacob Roschy
|
| |
|
CABL21: original Philips documents
Jacob Roschy
|
from Just Qvigstad
|
|
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