7501/8501 Processors (was RE: 6510 and 8500 differences)

From: COPLIN, Nicholas. (ncoplin_at_orbeng.com.au)
Date: 2000-08-02 08:59:44

> Better said: does anyone have such machine with a still working 7501?!
> :-(
[COPLIN, Nicholas.]  I would have to agree that the 7501/8501 would have to
be to most failure prone semi-conductor ever made. 2/3 of my Plus4 machines
are toast and the remaining one works for all of 5mins before it
"overheats", whilst the 3/3 of my C16's seem to work!

Is the problem model specific? Does anyone know of any fixes to help prolong
their life (Heat sinks? cooling fan?) 

Can a more robust 6502 be fitted?

- Nick

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