[thejazzageuk]

Thanks Techman- super clear advice once again.

I clipped the mains capacitors and removed the rectifier and then plugged in. All valves show orange glow so the heaters appear to be working, and the 2 PX4 look like they have all element working- see photo.

Next step to put in rectifier and monitor the HT. By the first smoother after the rectifier I think you mean C47 (or C48?). I've shown a photo of this capacitor-I just need to confirm which tab (red or yellow) is C47 before powering up with a lamp limiter for short periods, I think this will be written on the capacitor but I cant see it without unbolting it from its mounting. Will confirm this next.