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The Shaker Amp with Fan Controller
I took a couple weeks off around the Christmas holiday (2019) and was looking for a project. I wanted to replace the amp that powered my theater room seating shakers (Tactile Transducer Bass Shaker). I had a bunch of unused stuff around and decided to resurrect the old Gain Clone Amplifier boards. I had an old LTO-8 tape drive case. I had stripped out everything but the fan and power switch. The only issue with the case was it did not have a face plate. I discovered Front Panel Express (link), and was able to design and purchase a new front panel for under $50 US. I also wanted to control the fan based on heat sink temperature, so I designed and built a Thermistor based control circuit. Pictures and descriptions below:
Schematic for the Thermistor based fan control circuit: