At practice last night my amp volume kept tailing off and losing a lot of gain and every now and then would just burst back into life. I'm using an ADA MP-1 and Alesis Quadraverb GT running into the return loop on a 1990 100w twin channel/reverb JCM900 as a power amp. The power valves were changed in the Marshall about 4 months ago and I beleive the MP-1 valves were changed just before I got it (maybe 8 months ago, not sure). The MP-1 is standard apart from the batteryless mod. I didn't get a chance to go through everything last night as it was really late when I picked up on it.
Any ideas guys?
Thanks
Tony
Any ideas guys?
Thanks
Tony
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