Quote:
Originally Posted by ortek_service
Yes, just beat me to posting an extract of the schematic from that earlier photo (Now attached)
- Where I could see it was actually for the Softy-2 and confirmed my thoughts on the PSU and that the programming voltage unregulated input voltage was +30Vdc.
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And here's the Vpp Programming-supply regulator - Where, as I'd presumed, they had used a 78L05 regulator 'jacked-up' with a 20V zener (which they shorted-out with a transistor, to set output back to +5V for Vpp in read-mode)