adam..........

[kevinsatterfield]

[adam666]

[kevinsatterfield]

yes there are a few things im not understanding and would love to understand but i cant visualize how everthing works without the parts in front of me,or a picture similar to the i have in my projects folder.

[adam666]

[Bob Boyce]

Close adam. Pressure is used to flow replacement water, but turning the pump on or off is done by one or more level sensors.

Being the gaskets are flexible PVC, it's not hard to drill a tiny hole in the top of the gasket, centered between plates, and insert a small diameter stainless steel wire to the depth you want. Make sure the hole is a little too small for the wire so it is a tight fit, and adding silicon sealer externally around the wire couldn't hurt. As long as the wire is in contact with the electrolyte, a current flow can be detected by lighting an LED using a series resistor to prevent LED burnout. When electrolyte level drops, the wire loses contact with the electrolyte and the LED goes out, letting you know it's time to give it a shot of water. The process could be automated as well if you design some safeties in.

Bob

[kevinsatterfield]

[kevinsatterfield]

[adam666]

[thrival]

[kevinsatterfield]

[Bob Boyce]

[thrival]

Bob:

Well it won't officially be a MOT but will contain MOT parts
(rectangular primaries) when I'm done with it. Could you
please explain why toroids are better and the frequency
limits of other shapes? thanks much.

[Bob Boyce]

Sorry it took so long to respond. I went to bed early, just got up for a restroom trip and decided to check on msgs.

It's not so much shape as it is core material. Laminated iron cores are better at low frequencies (typically 50/60 Hz), while the ferrite cores of toroidal transformers are typically better for higher frequencies. It's not an absolute because the actual various type of ferrite material can make a big difference in frequency response.

Bob

[thrival]

Bob, thanks for getting back to me. That's useful info. I was going to
go with a poured iron silicate core initially (from an old Henley recipe
for patching iron stoves), then opted for steel brads (which are a real
challenge to stack like a mini woodpile). The problem with lo-tech
poured cores is they're brittle, and difficult to impossible to get out
all the air-bubbles.

[chemelec]

I'm not sure what kind of a transformer you are trying to make and I don't see a link to the "Folder, mentioned by Trival".

I assume your trying to make a high frequency transformer?

Instead of a Torroid Core, Why not just use an "EI" Ferrite Core?
They are fairly common and chearper than Torroids.