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- Fri Mar 13, 2020 9:56 pm
- Forum: JLM Audio Kits
- Topic: LA500A opto comp leveling amp BUILD THREAD 500/51X
- Replies: 169
- Views: 137775
Greetings. Quick question. I've built a single LA500A. Great kit, great instructions. It went together pretty quickly and easily. The problem I've run into and can't seem to solve has to do with an issue I discovered when calibrating my unit. 1Khz tone passes through and I can measure 1.23vac on out...