Quote:
Originally Posted by ct92404
Dags, thank you for drawing that schematic! That definitely helps!
I had another quick question - in general, how reliable are the capacitors in these old telephones? Should I replace it? When I've worked on antique radios, I usually had to replace several capacitors, especially electrolytic filtering ("smoothing") caps and wax ones. If I do replace the capacitor, I'll leave it installed for historical purposes and just clip the wires and put a new cap across them. But should I bother with that, or do you think the original capacitor might still work?
Oh, and I just tested the ringer. I hooked up one telephone to the other...when I cranked the first one, the bell rang on them both! So at least I'm getting there!
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The set is provided with an anti sidetone network, and a 6 bar magneto.
This phone is used on long, or populated lines. The network is a bridge
which has an arm that is the line.
Whatever the specifics of the original capacitor, the phone company
would have matched the capacitor. Pacing a new capacitor, with a radically
different D factor, will alter the sidetone.