This video shows how to modify a soundboard from https://www.bigdawgsgreetings.com for use with scale models. It is a step by step guide to installing sound files on the board and modifying it to be used with an external power supply and eliminate the onboard batteries.

It’s a good all-around board for basic sound FX and with a total cost of $12 for everything used here, it’s a good value for modelers on a limited budget.

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