Swapped the old tubes each other's sockets?
Stuff that sits for awhile sounds better than stuff recently moved. Maybe your disturbing the pins caused it. Or the wiring? I notice the wires if moved take time to regain "composure"
OR maybe you aquired a clump of earwax? (soounds silly, but ti has happened)
Stuff that sits for awhile sounds better than stuff recently moved. Maybe your disturbing the pins caused it. Or the wiring? I notice the wires if moved take time to regain "composure"
OR maybe you aquired a clump of earwax? (soounds silly, but ti has happened)