No, it's not aginst the rules to post a schematic but SST already did. That's the "official" one I have right out of the Bell System Practices.

It doesn't matter what you have, every 500 and 2500 was the same as far as the ringer goes. Check the cap if you wish but I doubt it is a problem. By the way, disconnect the slate and slate/red and connect them to your test cap, don't just bridge it across A & K. Otherwise you will have .2uF. Not a bad thing but not right either.

-Hal


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