Thanks, guys, for comments and suggestions. I'm trying to view this as a prototype--another term for for messy first run. But it should work as long as the fans keep the heatsinks cool enough.
I've sketched out a simple schematic that uses two 20 amp switches so that the inside fan can be run by itself but will always be running whenever the peltiers are on. No biggie.
Quote: Would there be any benefit to installing a peltier cooler on the side of the OTA tube instead?
Aaron, Are you talking about the side of the OTA (curved) or the back plate? No doubt a 9.25 with active cooling would be a real planet killer.
-------------------- Jim Fisher
If you're not part of the solution, you're part of the precipitate.
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