The Sinclair QL Forum

Hi,

Shortly after the release of the OPD, ICL issued an upgrade to the power supply as Capacitor C10 was failing. This was changed from 10v to 16v.

I have also had lately several supplies fail when Capacitor C1 goes 'pop' rather alarmingly , smoke and al'.

This is a
EVOX RIFA PME271M610M 0.1uF 100nF 250VAC CLASS X2 275VAC CAPACITOR - Singer

Also used in the Kenwood Chef mixer and it looks like Singer sewing machines.

About £3.50 each unless you want a big pile of them

David

The OPD power supply is a pretty standard Astec unit.

C10 would be the start-up capacitor.

As for C1, it's a RIFA delayed smoke generator. Don't replace it like-for-like, use a polythene X2 0.1uF capacitor instead. While you're at it replace the two 0.01uF ones as well as they'll go foom too.

All pretty standard stuff these days.