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That MSD noise filter is almost certainly a Nippon ChemiCon U36D series capactor (like [url=https://www.digikey.com/short/52pftq70]this one) with a red shrink-wrap over it and the price wildly inflate ...

The AeroElectric-List landing page loaded OK, but when I tried to click through to this thread, I got the error again. One reload attempt brought it up this time.

Matt, I've been seeing a lot of "phpBB : Critical Error" messages lately when viewing the AeroElectric-List web interface. Repeated forced-reloads will sometimes cause it to load, but it's ...

Unidirectional high voltage diodes like the CL01-12 in your oven, when paired with the HV capacitor, form a voltage-doubler that raises the transformer's ~2kV output to ~4kV to drive the magnetron. T ...

Stencils!
Amen. For one-off and prototype projects, I cheat and use a hot plate to reflow...
A good and basically free alternative to a hot plate is to put some fine sand into an old frying pan and ...

Those Chinese T-962 reflow ovens are well known in the hobbyist community for having hot and cold spots, sometimes poor internal wiring, and for not following [url=https://www.ipc.org/TOC/IPC-7801.pdf ...

I have no idea what brand of PIDG Alcor used. The ones I purchased look identical.
[url=https://www.te.com/usa-en/products/brands/pidg.html?tab=pgp-story]PIDG (Pre-Insulated Diamond Grip) is a tradem ...

There's a good alternative to Deutsch connectors. Amphenol make exact duplicates of the entire range of Deutsch parts. Every component is entirely interchangeable with the equivalent Deutsch parts a ...

Lucky catch on the backwards footprint. It all looks dandy to me now.

I'd be very interested to read what you have planned for temperature testing.

I had a PCB screw-up recently too. I failed ...

Jeff, what do you want to control with the S700-2-10, and how do you want it to work?

The S700 switches are not progressive. It's anyone's guess what the -2-50 actually is, as there's no option fo ...

Any assistance with making sure it wasn't a foggy day at this end is appreciated.
It looks to me that the layout matches the schematic perfectly. Just a few comments to offer:
Suggest not placing ...

Link returned a "400 Bad Request" error.

Try this: https://amz.run/7DJO

And, if you need to stand the wire bundle off from the structure, just cut a short length of rubber hose (1/4" ID works well) of exactly the length you need. Pass the zip tie through the rubber ...

How funny -- we were both working on this at the same time.

Here's what I came up with. LED is off under normal ops and illuminates if a phase goes missing.

-Eric

Thanks, Joe! I appreciate the confirmation.

-Eric

That would work too. I tend to gravitate toward a minimal parts count
utilizing as much off-the-shelf process as possible. The popped breaker is
inherently 'latching' and the current state of the CB ...

Those relays COULD be the ALT ON/OFF control devices powered through
a breaker just like the field of a wound-field alternator. The control switch
would pull to ground. The CBOVM module would tie t ...

That's very good advice, Joe. Screw it up and I'll have a crowbar whether I want one or not!

Wow! Thanks, Bob. That was WAY more than I expected. Sometimes
I feel like I should be making student loan payments for what I learn
on this forum.

The LM431 IS a zener. It's biased up thru 39 ...

Bob, did my questions about your Rev P1 schematic slip by unnoticed? See the second post in this thread: http://forums.matronics.com/viewtopic.php?t=16781079

My 2nd question is resolved by Rev P3 b ...