At 02:24 PM 1/26/2007, Bee Walton wrote:
>Anyone know a source for the Selsyn transformers for the Telrex rotor and
>control box? Fair Radio or SSof NE do not have them. Details and specs
>can be provided if required.
Selsyn is a trade name for a synchro. (GE, I think).. so googling
for synchro might find more info.
These things are fairly standardized, in terms of size (i.e. is it a
size 23 or something else) and voltages and impedances. C&H Sales in
Pasadena, CA, used to carry a fairly large selection of them
(transmitters, receivers, funky transformers, etc.) but I have heard
that C&H is going out of business (after many decades) so they might
not have any left.
try here:
http://www.candhsales.biz/cgi-bin/shop991/shop.pl/SID=735924848/page=TSYN.htm#SYN109
And, of course, you can buy new ones (Check the Thomas Register to
find mfrs.. I think Moog is one http://www.polysci.com/ ) or get the
old one repaired. A company called Windings, Inc.
Windings Inc
New Ulm, MN 56073
ph (800)795-8533 fax (507)354-5383
does this.
Synchros are widely used as position encoders, and there's a raft of
special purpose ICs or modules that take the three phase AC signal
from the synchro and turn it into a digital word. Companies like DDC
make them.
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