The little PRS 30w tube head here @shroprockdoctor…
The little PRS 30w tube head here @shroprockdoctor now has functioning reverb. Took a little investigation to reveal the root cause of the issue but the fix couldn’t have been more simple.
The reverb tray is
Quick check for tray functionality is measure the in/out resistance 2/200 ohm approx. All was good so on to circuit tracing with no schematics available, checking tubes as you go. Everything appears to be fine. Reconnect reverb tray to open chassis, still no reverb. OK remove the tray from its cover & all becomes… Mehr
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