A
all facts
Guest
buzzer to a 500 hotline phone.
Building a batphone.
the LED should light up Simultaneously to the buzzer sounding which should happen when a call comes in Using power off the phone circuit.
I had a set of instructions from Millionaire playboy but they do not jive.
Building a batphone.
the LED should light up Simultaneously to the buzzer sounding which should happen when a call comes in Using power off the phone circuit.
I had a set of instructions from Millionaire playboy but they do not jive.