Sperti 473384-2 Vacuum Relay Tube  
Written by AnubisTTP on 2006-10-11  


This device, which functions as a vacuum relay, consists of a spark gap bridged by a pivoting metal contact mounted on a glass bead. The entire mechanism is sealed in a complex T-shaped vacuum envelope. The underside of the tube is sealed with a flexible metal plate, allowing the contacts to be mechanically opened and closed by pressing the terminal exiting the bottom of the tube.


Sperti Vacuum Relay Tube
Sperti vacuum relay tube.

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