Vintage Simmons Drums (UK) Users Group

ok yes it has potentiometers but thay are vertical mounted presets i know i have two sds 1000s care must be taken when ever you repair any electronic parts with the top case off use the long nose pliers  squeeze together the ends behind the preset and at the same time with other spare hand pull the knob forward this is why the knobs dont just pull off thay have a long shaft on which goes through the preset and clamp to the wiper.