Antique radios, Old Time Radios
5691
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Country:
United States of America (USA)
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| Identical to |
5691
= 33S29
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| Similar
Tubes |
Heater different:
6113
; 6SL7GT
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| Base |
Octal (Int.Octal, IO) K8A, USA 1935
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 6.3 Volts / If 0.6 Ampere / Indirect / Specified voltage AND current AC/DC |
| Description |
Dual triode, long-life variant of 6SL7GT. Heater current raised to 0.6A; heaters are series connected, to disable both sections in bridge circuits in case of a failure.
First introduced by RCA in its 'Special-Red' high-rel line. Also made by GE, Sylvania, Tung-Sol, Westinghouse.
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| Tube prices |
4 Tube prices (visible for members
only)
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| Information source |
Essential Characteristics, GE 1973
- - Manufacturers Literature
Tube Lore (I)
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5691: RTT Schwandt
Günther Stabe † 19.8.20
More ...
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Just Qvigstad
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5691: Manufacturer's Literature
Emilio Ciardiello
More ...
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Collection of
Collection of a member from FIN |
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