Quote:
Originally Posted by Findm-Keepm
Vacuum tube - probably a thyratron? I can't imagine the need for a traditional vacuum tube of any sort. 2D21/PL21 tubes were commonly used in controllers in the late 50s/early 60s.
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There was a tube specifically made for electric blanket controllers, the GL-1367 fused thyratron made by GE. It was later EIA registered as the type 5662.
It had 2 cathode pins, with a fusible link connecting them. If the current through the link exceeded 2.25 A, it would open, cutting off the power.
12-26-2015, 01:34 PM
Hybrid Mode
