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Old 2nd May 2021, 12:22 pm   #5
Timbucus
Octode
 
Join Date: Mar 2019
Location: Barry, Vale of Glamorgan, Wales, UK.
Posts: 1,362
Default Re: Sinclair ZX81 AKA door stop

You said the regulator was working - hopefully you measured it - when I was fitting one of the little CCB units to mine to get a good quality Composite and Back Porch I did not notice that it was working but producing around 8V the ULA lasted about 30 minutes...
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