CALAHAN Posted March 30, 2007 Report Share Posted March 30, 2007 Hi,I am trying to run a FRS radio (3 AAA's) and a simple printed on board chip sound effects circuit board (generally 2 AA's, but will work with 3 AAA's it seems without frying it, and it gives me added volume which I needed), off of the same 3 AAA power supply. I was told to use a 10 ohm resistor in line with the power end of the sound effects PCB off the positive battery post, and I get reduced volume and distortion. I was then told to use a silicone diode, and that resulted in reduced volume, and the radio not working at all (the radio is not hooked to any of these components by the way). I also tried a Zeener glass diode, and that seems to have fried the receive end of the FRS amplifier. I have tried a few different values of resistor and I can only get low and distorted sound out of the sound effects PCB (mind you that I am over volting this thing, and it is still too quite). Does anyone know what I can use and where to put it, so both of these devices can run off of one power source? The sound effects PCB does not run continuously when the radio is powered on, but it will be used intermittently on occasion when the FRS is on.Thanks for any help.Bruce Quote Link to comment Share on other sites More sharing options...
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