Originally posted by bobo1960:
just what exactly does the cap do?
bob
When I was in tech school the Instructor told us as far as the telephone was concerned capacitors were for blocking dc voltage.
Which the capacitor does in fact keep the ringer from being directly connected to Tip & Ring since ring voltage is AC.
But I think connecting the ringer directly to Tip & Ring (Bridged ringing) was only a problem in the dial pulse days. In those days if you did connect the ringer directly to Tip & Ring you often got bell "claps" when you dialed a number.
But if you reversed the bell leads the problem went away in most cases.
I learned all of these tricks when I was in the Air Force over seas and we just had to make do with what we had on hand to "get 'er done".
