[jamesinnewcastl]

Hi Alan, thanks for your best wishes.

Apparently many of these receivers sold on the amateur market for conversion to car radios and I assume for other projects such as yours. I spent many weekends wandering Lisle Street looking at what would have been brand new ex-Mod kit, pity Dad never bought any.

My receiver is in a heavy cast enclosure while there was a 'portable' version of the SBA system with everything mounted inside a single crate and that used a lighter variant of the receiver which I suspect you have described, see pic. Does that look familiar? The first variants of the main receiver used a dual flexible drive to turn a switch through preset frequencies while later versions were fully variable via a single drive

Cheers
James