Just purchased an older PTEK FM-500 off ebay. Power level control was replace by a non standard Trimpot which has no way to be mounted. Rather than wrap this in electrical tape and have to open the cover to adjust, I would like to put in the right replacement.
PTEK support had me send pictures of the unit but replied that they don't have any schematics or parts list for it.
Does any one have a schematic they could share or an idea of where to find one?
FM does it with frequency!
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