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Thanks again everyone, as soon as I get a chance I will reflow the preamp and see if that helps. Given the intermittent nature of the failure prior to it dying completely that sounds like a very probable culprit. The actual amp itself seems to be working fine - if I take a signal into the return from the amp effects loop both sides are working well so I hope the whole problem is in the preamp. The vibrato light had been lighting up and now is not so that also makes me think the problem is there.

I had seen that about the stress on connectors and when I get a chance to open up the amp itself I will drop some hot glue on there to beef up the connection.

i was pretty sure that's what you meant but on the SMC parts I've worked on re flowing means something different. Thanks.

I've never really worked on a circuit board this old. Would I stick the whole thing in an oven to reflow it?

Ok all, again I'm new here. The preamp on my '77 suitcase was sort of working but now seems to have died totally. Of course I can still get output from the harp or the accessory 1 jack. Before it went it would occasionally have really low output (like 5%) at full volume. Checking inside the preamp the caps seem to be pretty old. The main power lamp will still light but the vibrato no longer will (it was working fine). I figure that new caps are the place to start but I didn't know if there are any other known problem areas there. Thanks!

Worked perfectly

Thanks, I'll give that a try - I forgot about that bolt. Thanks!

Hello all, this is my first post. I am a a first time Rhodes owner of a 1977 Mk1 Suitcase Eighty Eight. It sounds OK right off the bat and is in pretty good shape. There are a bunch of little things that I think need some work. One of the first things I noticed is that the low A (note 0) has a pretty off center tine. Looking at the adjustment screws I'm not sure there is enough play to straighten it out correctly and the tone from that key isn't great. Is there a good way to straighten it out? Thanks in advance.