A hobbyist that started in the '70s with tube, discrete transistor and 7400 series logic circuits. Love old test equipment.
This user joined on 10/04/2015.
Built Heathkit bench DVM and computer (H89A). Still have both!
Built a solid state scope with a 16x16 LED display and flash A/D converter, from the schematic in Popular Electronics, in the late '70s.
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