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Old December 26th 08, 04:19 AM posted to sci.electronics.equipment,rec.radio.amateur.boatanchors,rec.antiques.radio+phono
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First recorded activity by RadioBanter: Aug 2006
Posts: 154
Default Six position band switch for Heathkit IG-102 RF signal generator ...


You need to look again. That wafer A, rear section is used to short
out the coils for the bands that are not in use. It is a very special
switch, and the basic design was used in multiple brands of low end
signal generators.


The same type of "open circuit seeking" switch was also used as an input
selector in Hi-Fi preamps and amplifiers.

--
Regards,

John Byrns


Well, the OCS switch was used in a lot of places. Every Ledex switch ever
made had one in it to stop the rotation when the selected position was
satisfied.

The schematic I find, is very difficult to read, but importing it into
Photoshop where I can blow it up, I see now that the wafer pins are numbered
to tie to the front section. Sorry M0, I can't help you.

W4ZCB


 
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