Have you tried the amp with KT66 or KT77 tubes?
Willsenton R35i Integrated Amp with EL34 tubes
When I turn my Amp on there is a 30 second delay from red to green light....Ready to Play.
Today, I left my Amp on... IDLE for 4 hours. Green light was on....but after 4 hours the light became red ,.... as if it went into protection / relay mode.
When I turned it back on, it went back into green and played fine.
My question: Is this NORMAL?