My Workshop Portable Radio Index Manufacturers Index Radiograms-Record Player Crystal Sets Links Component Data Getting Started For Sale and Wants EMail
More Valve Data for Portable Radios
DM70 ValveThis is a wire ended valve used as a tuning indicator in valve portables from the 1950's.
Wireout is:1 Grid. 4 Filament. 5 Filament. 8 Anode.
Filament Voltage = 1.4v. Filament Current = 25ma
Anode Voltage = 60 to 90v
The grid is connected to the detector circuit of the Radio
Equivalent Types. 1M3
EZ41 ValveA rectifier valve which was quite common in the early 50's in portables (Vidor,Bush etc) used in an internal power supply as an alternative to batteries.
Last updated 3.7.2004