Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!orion.oac.uci.edu!envy.eng.uci.edu!refling
From: refling@envy.eng.uci.edu (John Refling)
Newsgroups: sci.electronics
Subject: wanted info on big white ceramic vacuum tube 8614/hy-5
Message-ID: <283A02CD.20752@orion.oac.uci.edu>
Date: 22 May 91 05:34:05 GMT
Reply-To: refling@envy.eng.uci.edu (John Refling)
Distribution: usa
Organization: Dept. of Electrical & Computer Engineering, U.C. Irvine
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Does anyone have any idea on this device: 4 inch diameter, 7 inch long,
white ceramic, 3 terminals with 1/2 inch standoffs on one end which went
to a low voltage hi current transformer (filament?), large rings
surrounding each end are major current/voltage conductors, small ring
around center is probably control electrode.  This was used to switch
30kV, hi current.  Manufacturer: EG&G.  8614 / HY-5.  7337.

My guess is an ignitron or similar.  If you know what this is,
please tell me --- thanks!