With the new parts from amazing digi-key and my coddled bits, I prototyped the dew heater controller circuit with the IC 556. Or one half of it anyway. That is, I set up one potentiometer for one of the channels. It seemed to be working with the LED flashing at different rates. The pot changed the duty cycle. Good, in general, all the parts were working! I saw volts on the heater net, flicking on and off with the duty cycle. Curiously, I did not observe amps registering. Weird. I stepped away.
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Next: considered physical layout.
Saturday, January 26, 2019
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