Will the PS2 G gauge board power these 2 8ohm speakers wires in parallel?? I believe the first one inside the shell is a Lionel Fatboy?
the one in the tank came from another engine
finally, look at the size of the tank and motor from a MTH VO1000 G gauge engine's smoke unit!
I'm expecting big smoke and long run times from this baby!
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If memory serves the DCS board drives a 8 ohm speaker normally.
2 of them in parallel is 4 ohms and will smoke the sound chip.
You have room in the engine, Run the sound output of the PS2/3 board to an op amp and boost it for the second speaker. Put the op amp input and speaker #1 in parallel. This won't hurt the PS2 board as op amps have very high input impedance.
Power for the op amp needs to be dual polarity for best sound.
Russell,
If memory serves the DCS board drives a 8 ohm speaker normally.
2 of them in parallel is 4 ohms and will smoke the sound chip.
The 5 volt board drives a 16 ohm speaker and should be able to handle 2 8 ohm speakers wired in series,
The 3 volt board drives a 4 ohm speaker should be able to handle 2 8 ohm spaekers wired in parallel.
Well... here she is...
for now
two speakers...nice and loud. I think the newer G scale boards are louder
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