Please click your language flag. Bitte Sprachflagge klicken.


Information - Help 
ID = 50758
United States of America (USA)
Brand: Moorhead Laboratories (Pacific); San Francisco
Developer: Moorhead Laboratories (Pacific); San Francisco 
Tube type:  Gas Triode   Detector 
  <1925 rare.
Identical to ER_Moorhead-1917
First year Jan.1917 Saga of the Vacuum Tube, Tyne page 169.
Predecessor Tubes ER_Moorhead  
Successor Tubes ER_Moorhead-Edison  

Base Wires
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.94 Ampere / Direct / Battery =

The 1917 version of the ER was normally supplied with a dual filament, but some single filament versions have been seen. See also the version with an edison base on one end.

Dimensions (WHD)
incl. pins / tip
95 x x 22 mm / 3.74 x x 0.87 inch
Tube prices 1 Tube prices (visible for members only)
Information source Saga of the Vacuum Tube, Tyne   Page 170
-- Collector info (Sammler)   

Usage in Models 3= 1917

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):3

Collection of



You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]

Data Compliance More Information