Good lessons there David......
Batteries do fail....even new from the package.
Digital is fine to a point...... when it goes South there is no fixing....
and how quick we get used to instant results........ old radios were famous for taking it time to warm up....anything with tubes need patience.....which years ago did not seem to bother us...... You are one of the few left who exudes of patience, persistence and problem solving skills with the old electronic radios....
My old tube tester instructs in bold character to allow the instrument to reach room temperature than 10 minutes for proper warm up....... and then to proceed with an item of known value before testing components.
Always enjoy reading your trials and tribulations........
Bob C
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Bob Carriere....B.T.B
C15a Cab 11
Hammond, Ontario
Canada
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