Antique radios, Old Time Radios
HL210
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Country:
Great Britain (UK)
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Brand:
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| Tube type: |
Triode, vacuum Universal |
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| Identical to |
HL210
= 210HF_Cossor
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| Similar
Tubes |
Normally replaceable-slightly different:
AR4_EA
; CV1303
Other class quality (otherwise equal):
CV3500
Heater and shape different:
HL410
Other base:
HL210_UX
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| First year |
Oct.1928
- - Manufacturers Literature Date of Marconi Publication No. 520A.
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 2 Volts / If 0.1 Ampere / Direct / Battery = |
| Description |
Mazda and Osram/Marconi manufactured. Mazda had the option of plain or metallised bulb. Suggested by Marconi as an alternative to the HL2 which had a higher gain and could cause instability. Va max 150V, Gm 0.87mA/V at Ia =1 to 5mA. -Vg 0 to 6. Osram recommends use as grid leak or anode bend detector and LF or HF amplifier.
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| Information source |
L'ABCDaire des lampes de TSF des jeunes années p. 77
Taschenbuch zum Röhren-Codex 1948/49
- - Manufacturers Literature
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HL210: rtt
Anonymous 10 Collector
More ...
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Just Qvigstad
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HL210: osram wireless guide 1931
Giuseppe Antonio Tusini
More ...
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):35
Collection of
Collection of a member from D |
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