Fairlight-CMI

WT wrote:

> It doesn´t do this every time. Well, I think you cans ee it a little bit 
> always but sometimes it is worse. Like the picture shrinks 2cm each side.
> 
> Any thoughts ?
>

Power supply ripple, probably caused by dried-up electrolytics in the 
power supply.  This used to be common, but I haven't changed a faulty 
electrolytic capacitor for over 15 years - well, except one extremely 
cheap and nasty radio power supply.

Gordon MM0YEQ