Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!iuvax!uxc.cso.uiuc.edu!ux1.cso.uiuc.edu!tuna.cso.uiuc.edu!kline
From: kline@tuna.cso.uiuc.edu (Charley Kline)
Newsgroups: sci.electronics
Subject: Need help locating a part
Message-ID: <1989Sep17.195512.4723@ux1.cso.uiuc.edu>
Date: 17 Sep 89 19:55:12 GMT
Organization: University of Illinois at Urbana-Champaign
Lines: 29

channel. The offending part is of course the triac, which is shorted. I
could easily replace it, if I could find one. The part is labeled
"TG25E40 7B   SanRex  JAPAN". I know it's a triac both from context in
the circuit and by the fact that the terminals are labeled "T1", "T2",
and "G".

I need not only an equivalent triac with the same characteristics, but
I need one with the same (odd) packaging: A plastic square 3/4 inch on
a side, with three flat terminals protruding, bonded to a 1/16 inch
metal plate the same size as the plastic but with triangular ears with
a mounting hole in each. The things are all mounted by machine screws
to one thick rectangular metal tube which the pack's cooling fan blows
through. Kind of an interesting heat dissipation scheme, I thought.
Connections are not soldered, but are made through open-barrel
disconnects on the terminals of the triac. Apparently the manufacturer
expected these to fail often.

Can anyone help me track down a source for these parts? Help a
non-profit community theater out: the local ripoff head band lighting
and sound joint wants $40 apiece for these, and you can't just buy
them; you have to make a service call and pay for their labor too.

Thanks in advance!

_____
Charley Kline, Assistant TD, Celebration Company at the Station Theater
c-kline@uiuc.edu
uunet!uiucuxc!kline
(217) 333-3339