Amp Building/Technical/Repair
Hello!
AMP: Peavey 6505MH
The problem:
After few seconds, when I switch on my amp, it begins to hum (50HZ). The hum is emitted by outputs (speaker, and headphones), but not by „send”.
- The hum isn’t there above 230V, but if the voltage is lower than 230V
- The hum is stronger if the voltage...