Is there a working website or does someone have the schematics for the cooler crawler throttle. I thought I would like to build one. Thanks.
have you tried a google search for cooler crawler throttle?
looks like the Paisley Cool Crawler Throttle Pared Down has a corrected version with current limiting
You might find additional useful material, including a discussion of the circuitry here in 2008, if you search on “Tractronics Articles”.
It is sobering to note the various ‘permanent’ reference collections of these articles that are 404’d or unknown…