" wrote:
Joseph Meehan wrote:
wrote:
The system uses a 24V transformer. I am not sure of the current draw.
I have extra 24 gauge wires available from an old phone system and I'd
like to use them (I won't have to rip open any walls.) I'm guessing
24 gauge is "probably" okay but not the best. (I can't pull the old
phone wires and install a new 18 gauge (???) cable, there are too many
staples along the path.)
What is the normal wire size for this situation?
It is more a factor of distance than current. If you have a long run
that 24 gauge may have too much voltage loss and the bell may not function
properly.
--
Joseph Meehan
Dia duit
Greetings,
If you have too much voltage drop simply use an 18 V buzzer or even a
12 V buzzer instead of the 24 V buzzer you were originally going to
install. It is a lot easier to substitute a different buzzer than to
open the walls.
One can add a simple circuit, consisting a resistor, diode, and a
2000-5000mfd 35vdc capacitor.
A single diode to convert the 16vac into DC, to charge the capacitor. A
tens of ohms to limit the current thru the diode.
Connect the door bell circuit to the capacitor, it will ring with real
authority, as the capacitor discharges. The capacitor will take a
second or so to recharge before it is ready to ring again.
The values of the electronics parts isn't critical, so you can use what
ever is available.