The Sinclair QL Forum

Hi All,
I have done some translation in English language.
http://www.savel.org/2020/12/19/sinclai ... for-eprom/

Pay a visit

A just a bit similar, but 27C512 use A15 pin and it is hard connected to Vcc on QL mainboard. This mod is connecting EPROM without bent legs and any hanging PCB or other items. Must work with original ROMs too.

I am not history lover. I am planing to modify QL to accept generic "wall brick". Modern technologies will fit DC/DC converters on small part of heatsink. This mod will give "any" (6...16+V) center positive input and generate +5V, -12V and +12V internally. It is only about 5W of power for bare QL. I ...

Hi All,
I resurrected QL issue 5 (version with 3 EPROMs) from dead state (bad ROM!) and converted to single 27C512 ROM usage. There is few small modifications and one very hard- need to cut A15 pin on EPROM connected to Vcc on PCB under the socket.
I have all documented in Lithuanian language at my ...