Re: Midland 14-623 4 transistor 9v amplifier
Posted by induction on Apr 01, 2022; 5:26am
URL: http://guitar-fx-layouts.238.s1.nabble.com/Midland-14-623-4-transistor-9v-amplifier-tp50491p50492.html
If those electrolytics are also from the 60s, I'd start by swapping them all out.
I also see a couple of solder joints near the ground wire that look cold.
Sorry, I don't have any other info or a schematic, but it looks like it should be pretty easy to trace.