Antique radios, Old Time Radios
M300
|
Country:
Netherlands
|
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| Identical to |
M300
|
| Similar
Tubes |
Normally replaceable-slightly different:
A409
; G407
; L308_Marathon
|
| First year |
1927
Tube leaflet collection E.Erb Analysis by original leaflets
|
| First Source
(s) |
16.Oct.1925 : Radio-Expres, Netherlands
|
| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
|
| Filament |
Vf 4 Volts / If 0.06 Ampere / Direct / Battery = |
| Description |
HF, LF, Det.
|
Dimensions (WHD)
incl. pins / tip |
40 x 87 x 31 mm / 1.57 x 3.43 x 1.22 inch |
| Weight |
35 g / 1.23 oz |
| Information source |
- - Manufacturers Literature
Taschenbuch zum Röhren-Codex 1948/49
|
|
M300: Tabu Röhren-Codex, 1948
Anonymous 15 Collector
|
Just Qvigstad
|
M300: own collection
Peter den Boer † 2025
More ...
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1
Collection of
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