[SteveCG]

We had one (a 25 inch) at home. The biggest challenge was keeping it converged. I don't know how many times I had the back off and the convergence panel up, turning those 'rough' preset pots. You would finally get it as good as it was going to get, turn the set off, turn it on again later and you'd be back to square one...

Anyway, the standard change switch finally did for it - although I was not there to see what happened. I was away and when I retuned it had gone and had been replaced with a Single Standard 3000 set. Shame, I liked 405 line, especially with all the associated big Band I and III aerials.

FYI: The set was fed on UHF with a signal from a J. Beam PBM18 group C aerial pointed to Winter Hill transmitter on Channel 62 (BBC2) initially.

I thought the picture quality was good in terms of colour when compared to other hybrid sets I saw. So I hope your restoration goes well, the set is worth it in my opinion.