Max operating voltage for Annie sound board

Discussion in 'Getting Started' started by Eugene157, Apr 7, 2007.

  1. Eugene157

    Eugene157 New Member

    Jan 31, 2007
    Likes Received:
    I have a Bachmann Annie and the sound level is anemic when used out doors. Since I am planning to use a Dallee sound board at some point in the future, I felt that there was nothing to loose by turning the voltage up. The capacitors are all rated at 16V, that would be the absolute max.
    The Annie will operate on battery power in the future, a combine is used as the battery car, using 10 NIMH batteries, the voltage close to 13V.

    Testing the soundboard with a variable power supply, no problems occurred, running for a while at 16V.

    Had the Annie sound board from the battery pack at app 13V for an hour w/o problems. The sound level more than doubled.

    Useful information and a schematic diagram can be found here