[Luxman1050]

All valves and sockets where thoroughly cleaned on first obtaining the radio. All wiring has been checked and renewed where needed. All cold solder joints re done. All resistors checked as well as small capacitors all in spec. Wiring, valves, resistors, checked re checked. All wiring connections tested for continuity no breaks. RF checked, output transformer checked, tuning capacitor removed cleaned re wired re checked before re install, speaker checked for output all new main capacitors re placed, new tunning dial cord, new y2 caps installed on aerial connection, chasis thoroughly cleaned especially areas of rust. UCH21 removed installed in opposite socket same problem on tapping no difference made when tapping other valve installed on the other socket. So must be a short in the valve somewhere. These valves although look clean now where actual rust buckets until I cleaned them and don't forget their all original so firing them up and running for around 4 days caused problems and maybe that valve now being run in has started to fail. Just my assumption.

Cheers Chris