Antique radios, Old Time Radios
M4205E
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Country:
Great Britain (UK)
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| Identical to |
M4205E
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| Similar
Tubes |
Normally replaceable-slightly different:
205D
; 4205E
; R205-D
Other base and data slightly different:
205
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| Base |
UV-Base (4 Pins+Bayonet, USA 1914 WE)
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| Was used by |
Industrial |
| Filament |
Vf 4.5 Volts / If 1.6 Ampere / Direct / Specified voltage AND current AC/DC |
| Description |
The M4205 tube is similar to the 4205E but has the grid and anode specially treated to reduce secondary emission. It was first made with a nickel plated base but this was later changed to Bakelite. Under safe operating conditions, the maximum anode voltage is 400 and anode dissipation 15 watts.
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Dimensions (WHD)
incl. pins / tip |
x 108 x 64 mm / x 4.25 x 2.52 inch |
| Weight |
65 g / 2.29 oz |
| Information source |
- - Manufacturers Literature Data sheet dated November 1937
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M4205E: Fin Stewart
Fin Stewart
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Just Qvigstad
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Collection of
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| Data Compliance |
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