Hi everyone, I just finished building a Trinity 18 kit, and it sounds great overall, but I’m getting a noticeable hum when the volume is above 5 even with nothing plugged into the input. I’ve double-checked my grounding and lead dress, but I’m still fairly new to amp builds, so I might be missing something subtle. Could this be related to heater wiring or maybe a grounding loop specific to this model? Any advice on where to troubleshoot
Meowdoku next would be really appreciated.
Discussions like this are really valuable for anyone working on or maintaining tube amplifiers. It's always interesting to learn from real-world troubleshooting and different approaches.