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Altair 8800 power supply capacitors

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  by Bill Degnan - 06/30/2009 23:19
Pictures of the large caps of the power supply controller, compare two 8800 models.

Capacitors for Serial Num 220043K
  • System not working
  • Incorrect voltages


    Capacitors for Serial Num 220744K
  • System is working
  • Correct voltages despite a large bubble on one of the caps. There is also a discoloration nearby, on the controller board. I am not sure if this was repaired yet left stained, but I plan to replace the affected area's diodes, etc too.


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