Antique radios, Old Time Radios
T61D
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Country:
Great Britain (UK)
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| Identical to |
T61D
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| Base |
Top contact with a cap.
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| Filament |
Vf 6 Volts / If 4.25 Ampere / Direct / Specified voltage AC/DC |
| Description |
Large 4 pin base.
Pa <60W; Va <2000, Ra=4700, μ=21
For operation up to 30 MHz.
Price in 1931 was 6.50 GBP
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| Information source |
Experimental Wireless & Wireless Engineer Mullard Advertisement December 1931.
- - Manufacturers Literature
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1
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