Free Abandoned HP 3478A 5-½ Digit DVM Repair

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  • Опубликовано: 6 фев 2025
  • We repair a classic HP 3478A 5-½ digit voltmeter, and admire its ultra complicated A to D converter.
    HP Multislope II ADC patent: patents.google...
    Ian Scott Johnston video on HP 3457 backlight mod: • No.042 - HP3457A Backl...
    Blacklight display mod: www.eevblog.co...
    LCD protocol reverse engineering: www.eevblog.co...
    OLED mod: www.eevblog.co...
    Ken Shirriff's Nanoprocessor reverse engineering: www.righto.com/...
    Ken Shirriff’s reverse engineering of the hybrid in Marco Reps’ HP 3458: x.com/kenshirr...
    Jeff Peletz amazing HP instrument pictures: hparchive.com/w...
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    "Elevator Music" Credit: Crinoline Dreams by Kevin MacLeod
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