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Mullard ME1401 / CV495 electrometer triode

Size This valve measures 42x9mm overall, plus the 4 leads.

 

Filament voltage 1.25V
Filament current 13mA
Max anode voltage 25V
Max anode current 250µA
Mutual conductance 80µA/V

See also CV2269 which is based on this valve.

 ME1401 CV495 label
Warning label Warning label Warning label