• Commodore 8bit Keyboard Tester

The Commodore 8bit Keyboard Tester can measure the resistance of every key of 8bit Commodore keyboards (requires a multimeter and two 4mm lab cables).

You can test the keyboards of the following Commodore machines:

  • C64
  • VIC-20
  • PET/CBM
  • C16
  • PLUS 4
  • C128
  • C128D
  • SX-64 (Requires a special cable)

Simply hook up your keyboard to the appropriate connector and connect your multimeter to measure the resistance of each key. A good impedance is between 0Ω and a few 100Ω. Anything higher than 600Ω should be inspected.

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Commodore 8bit Keyboard Tester

  • Brand: Retro Rewind
  • Product Code: R-64-KEYTES
  • Availability: In Stock
  • $22.00


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