Antique radios, Old Time Radios
CV1048
| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
Top contact with a cap.
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| Filament |
Vf 2 Volts / If 0.1 Ampere / Direct / Battery = |
| Description |
No manufacturers' information has been found for the 210SG. It is mentioned in some CV registers as equivalent to the CV1048 and also in some circuit details. Later, the CV1048 is recorded as a selected 215SG (CV1018).
It is probable that the 210SG was in limited production by Cossor for their radio kits of about 1928. However, it seems not to have been advertised or sold separately. The requirement for the CV1048 was met by selection from the 215SG (CV1018).
CV spec gives the CV1048 as a set of three 215SG/CV1018 tetrode tubes matched for the same anode to other electrodes capacitance, for use in the W1117 wavemeter. Each tube carries a W letter followed by a three-digit serial number common to the other two tubes of the set.
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| Information source |
-- Collector info (Sammler)
-- Original-techn. papers.
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CV1048: rtt
Anonymous 10 Collector
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Just Qvigstad
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