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Trying to fix a jittery function generator and uploading its manual to @archive.org as you do.

Thermal cameras are handy. That pass transistor is ~*hot*~!

#FixingThingsIsCool
Thermal image of a circuit board. Several parts are glowing bright yellow. There are small crosses marking the temperature of the center of the image (31.6°C) and the hottest component, a PNP transistor running at 92.5°C. Schematic diagram of the power supply for the function generator.
November 5, 2025 at 2:20 AM