Author Topic: High-Pitched "Squeal" Coming From Amp Head (RD45H)  (Read 1855 times)

Offline bailey1593

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High-Pitched "Squeal" Coming From Amp Head (RD45H)
« on: April 04, 2015, 07:32:30 PM »
Hey, guys. I have an issue with my RD45H where there is absolutely no sound coming from the speaker, but when I turn the volume and gain all the way up, something near the input squeals. I've replaced all the preamp tubes with no luck, and the power tubes are brand new. Other than that, I really have no more information to give. Is there a way I can troubleshoot it, or is this a thing to let a tech look at? (It's still under warranty, so that won't be an issue. I also know a guy who is registered to work with Randall warranty claims.)

Update: I'm going to go ahead and assume it's a loose connection somewhere in the preamp section. Sound came back around 2 hours after I posted this, and it just went out again. Looks like it's shop time. =/
« Last Edit: April 05, 2015, 06:59:19 PM by bailey1593 »