San Diego, CA
LOL!! So true!
Quoted from rufessor:The Oompa Loopas don’t like their pictures taken!!
(Topic ID: 212391)
Quoted from PACMAN:A little further along. Speaker grill cleaned right up. Removed the rust and gunk without losing any of the finish.
What process did you use to clean the speaker grill?
Quoted from PACMAN:I could do that but it would take considerably more time I've done it on a few in the past, i'll think about doing it again. Might be easier to just shoot video of the actual work.
I'm not saying you should detail *everything*. I imagine documenting these threads already takes a lot of time and effort. Just a few tidbits/pointers on certain things here and there would be great. It's always nice to learn wherever possible.
Its actually FORMICA. The art is screen printed directly to the cabinet.
Quoted from RCA1:Is the cabinet painted, or is that some sort of laminate?
(Awesome work as always!)
Used an ultra fine wire wheel/brush. With a fast drill, not a cordless.
Quoted from PM_Jeremy:What process did you use to clean the speaker grill?
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Yeah, its pretty time consuming but i'll try to throw in some more tips and tricks.
Quoted from RobertWinter:I'm not saying you should detail *everything*. I imagine documenting these threads already takes a lot of time and effort. Just a few tidbits/pointers on certain things here and there would be great. It's always nice to learn wherever possible.
Ocean floor as clean as its going to get. Just used water, don't want to risk using any chemicals on these. The colors are a bit faded from the black lights but not much can be done about that. Only option would be to hand paint every section with florescent paints. Check out the orange mushroom underwater city.
Quoted from PACMAN:No love for the Sonar?
Much love here I don't always comment or post all the time, But your restorations are some of the best post on this forum.
I love seeing the restoration and repair threads here.
Thanks! I'll keep putting them up, until my back gives out anyway 
Quoted from kuelman:Much love here I don't always comment or post all the time, But your restorations are some of the best post on this forum.
I love seeing the restoration and repair threads here.
Replaced the spinning bubbler motor. Was 7.5/9.1 RPMs before. I had a 10RPM motor from China on hand - close enough!
This spins a canister that has random holes poked in it. Inside the canister is a bright light that projects "bubbles" onto the scene below.
Duisburg
3 weeks later
3 weeks later
4 months later
You need to find originals- the size is part of the sound!
Good luck! I am jokingly serious. I have actually been to more than one electronics store digging through bins looking for the same rectifier found in a mid 70’s EM. Found some eventually and bought a few and no noe one will know its been redone. Caps do age but if you find a well stored unused one I bet it works for a good long while.
But modern is the fix and forget solution....
Quoted from PACMAN:I’m quickly getting to the point where I just want it to work. These EMs are really draining my will to live.
I’ll get some numbers off of them and hope for the best but I’m open to suggestion on modernizing a bit.
Depending on their value and size of the modern replacement part you may be able to tuck new ones inside the chassis. "Usually" caps like that don't totally fail. They will slowly loose their capacitance but will still work in a circuit with reduced efficiency. If you have totally lost sound the issue may be elsewhere.
Ok. Replaced the Caps but still no sound!! Suggestions?
Quoted from PM_Jeremy:Depending on their value and size of the modern replacement part you may be able to tuck new ones inside the chassis. "Usually" caps like that don't totally fail. They will slowly loose their capacitance but will still work in a circuit with reduced efficiency. If you have totally lost sound the issue may be elsewhere.
Nice work! The number of components is small. I would consider shot-gunning all the resistors & transistors. You could troubleshoot it with a scope, signal tracer or mulitmeter. But the components should be cheap. You should spend the time cleaning & testing the adjustment pots.
Have you cleaned & checked the circuit board to metal chassis connectors?
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