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One critical tip with these old computers: Don't just plug them in without checking first that the power supply isn't giving out bad voltages. Not sure about t
by rwmj 3y ago
One critical tip with these old computers: Don't just plug them in without checking first that the power supply isn't giving out bad voltages. Not sure about the Amiga specifically, but older power supplies can fail in a way that they deliver excess voltage.
- vardump 3y agoVery important advice, especially for C64 (and same era devices).
- rwmj 3y agoThe ZX81 has the older RAM chip (just one!) that required an extra -5V bias voltage. A failure mode is that either the non-switch-mode power brick and/or the internal voltage regulator can fail and deliver 9V or more into this pin, with very unhappy results.