Antique radios, Old Time Radios
5691
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Tube type: |
Double Triode Audio Frequency |
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Tube ID = 5873 |
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| Identical to |
5691
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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 / -: Parallel / series 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 |
2 Tube prices (visible for members
only)
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| Literature |
Essential Characteristics, GE 1973
Röhren-Taschen-Tabelle 14.A, (Franzis RTT)
- - Manufacturers Literature
Tube Lore, Sibley, USA 1996
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collection JR
Jacob Roschy
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RTT Schwandt
Günther Stabe
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Manufacturer's Literature
Emilio Ciardiello
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| No further Information
for |
5691 |
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