Look around, can probably find a decent used one.
Nice job Jim, looks cracking’ to me.Piddlin' while waiting on parts...
The speedo has been on my "dread" list from day one. It worked when I tested it a few yrs ago but it looked like hell.... and stunk of dead critters.
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Decided to tackle it today. Woof... what a mess. the rubber isolator was hard and cracked. Draganfly.co.uk has 'em in stock for under 20 bucks. A 57 yr old piece is still available... unbelievable. Anyway...
Inside the isolator, between it and the instrument was packed with mud dauber nests and larvae goo. No other way to explain it really, just a dirty, stinky mess. I had to cut it off in pieces.
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After that it was just a matter of using WD40 and wood scrapers and patiently cleaning the speedo up.
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And here we are... can't really call it "good as new" 'cause the bezel has a ding in it. Other than that, it looks good as new.... the side you see anyway. I'm callin' this one a win. I'll take it.
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Yep, the new power supply I got for plating will work for testing. And yes, I plan on doing that. The manual even has a procedure for testing iirc.Have you bench tested the Zeener. I'm pretty sure you have the right stuff to do it.