radiomuseum.org

 
Please click your language flag. Bitte Sprachflagge klicken.

EM-4

Information - Help 
ID = 77924
       
Country:
United States of America (USA)
Brand: Clare, C.P. & Company; Chicago, IL
Tube type:  Relay in glass (not Relay Triode) 
Identical to EM-4

Filament
Description

Mercury displacement contactor, DPST.

Mercury displacement and mercury wetted relays were sometimes used as high-speed pulse generators due to their unique feature of making and breaking circuits in very few tens of picoseconds with no bouncing.

 
 
em_4_clare_02.jpg
EM-4: Private collection
Emilio Ciardiello

 


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]
  
rmXorg