When a coin was dropped in the slot it would travel down
the chute into the hopper where it would cause a momentary break in a
connection putting a resistance on the line for a split second. That
would tell the central office that the coin was inserted. The coin was
not held in escrow as in a prepay circuit, it fell directly into the
coin box. There was no way of returning a coin, the only time a coin
would be returned was when it was dropped into the wrong slot.
I want to thank James Cheshareck for hisassistance in
completing this article.