Hi Gang,
Before I tried anything else (as the install is mostly done), I figured I'd swap out the LM for a verified new LM-3S, just in case. Guess what? No issues with a new LM-3S!
Looks like the LM-2S is buggered. I can't recall if I pulled this from a loco that's been disposed of, or if it's a used one I picked up. I'm guessing the later, especially as the other used one I got was dumping excessive voltage through the speaker when connected. Cooked 2 speakers figuring that one out! It works good for driving my turntable though.
Do you think Tim Ring would work on it (for a fee), or do I just chalk it up to lesson learned? The cost of repair (including postage) might exceed a new LM-3S.
Thoughts?