Antique radios, Old Time Radios
GM4
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Country:
Great Britain (UK)
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| Identical to |
GM4
= CV2138
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| Similar
Tubes |
Normally replaceable-slightly different:
GM2
Other class quality (otherwise equal):
GM4LB
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| Predecessor Tubes |
GM2
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| Base |
SPECIAL TUBEBASE in general
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| Was used by |
Technology / Measurement |
| Filament |
--/-- |
| Description |
Organically (Ethyl Formate)quenched detector primarily for Beta radiation detection but also suitable for Gamma and X-rays.
Operating Voltage 1250-1450.
Useful life >6x108 Counts.
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Dimensions (WHD)
incl. pins / tip |
30 x 122 x mm / 1.18 x 4.80 x inch |
| Information source |
- - Manufacturers Literature July 1961
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| Data Compliance |
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