Goldentone single valve guitar amp troubleshoot

Yes, I guess I am lucky to live in the coutryside in France. Lots of old folks here who have lived in the same place all of their lives, and when they start to clean out (or their kids) the treasures appear... and very few people seem to be interested in the old stuff, or they just don't know what to do with it. Old french radios from the thirties often have american type tubes in them, I think you would love it!