Antique radios, Old Time Radios
5641
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| Tube type: |
Half-Wave Vacuum Rectifier Power-supply |
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| Identical to |
5641
= CV473
= EY70
= SN954
= CV5211
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| First Source
(s) |
25.Feb.1948 : Electron Tube Registration List
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| Predecessor Tubes |
SN954
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| Base |
Wires only.
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| Filament |
Vf 6.3 Volts / If 0.45 Ampere / Indirect |
| Description |
250 V max rms, 300 V rms with chocke input, 45 mA max DC current. Insulation between cathode and heater raised from 425 V of the first series to 450 V for the 8-pin base, since December 1948.
The 4-pin 'Jumbled' base reported in the early documentation, February 1947, was replaced by the 8-pin base 6CJ in December 1948. The photo loaded by Heinz Höger gives the evidence of production lots with the four pin base.
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| Tube prices |
1 Tube prices (visible for members
only)
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| Information source |
Essential Characteristics, GE 1973
- - Manufacturers Literature
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5641: Essential characteristics
Peter Hoddow
More ...
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5641: Manufacturer's Literature
Emilio Ciardiello
More ...
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