Valve amp with the three main lumps made by the same manufacturer and the same sort of 0.05 mm soft white plastic part labels on the outside , so PVC or polythene perhaps. Output Tx label as original , choke just starting to show signs of ruckling/cockling, and the mains transformer noticably ruckled , still same white and footprint is the same ie the edges are in the original position. So mains Tx has got the hottest presumably, any guesses as to what sort of temperatures, and what if the label was seriously ruckled with distorted or unreadable script or discoloured and shrunken footprint ?
-- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on
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