Hey!
I seem to have got one of the more rare A500 PSU designs out there since I can't find any references online.
It's a switching (light) model with 4.5A output on the 5v, says "Made in India" on the back.
I have concluded that the switching transistor is shorted. The type model is MJE18006 (
https://www.digikey.co.uk/en/product...E18006/1481813).
Mauser and Digikey got a replacement called MJE18008G but the shipping and handling is 10x the price of the transistor.
Happy for any suggestions.
Cheers