kungfujews
Active member
A desparate question from a MKIV short body combo user...I've recently noticed a worrying trait on my amp. When I'm playing, after dialing in my tone I've noticed the graphic seems to fade out and the tone changes to a 'boxy' 'honky' middley tone. I've switched the graphic off - changed channels and switched it back - only to find the graphic - and nice tone return. The volume doesn't decrease though. This has happened a few times in the past week and it's causing me sleepless nights. I've tried changing the valves - replaced the V1 as well as swapping the 6L6s from my younger F100 - I thought this had cured the problem, but it has since happened again. Can anybody advise me? :?