hi everybody
i hope my explanation is understandable!. Actually checked that i hadnt got an pog / higher octave setting switched on on my multi - effect at last nights rehearsal. Almost like a 12 string effect, but not nice!. The unit was in bypass.
my normally beautiful pure noted hot rod deluxe sounded like its notes had got an octave note above them, not loud, but annoying.
i changed the valves about 6 months ago. Only a few gigs and weekly playing since
i am going to try the valves but any tips on whether this a particularly characteristic type of defect would be greatly appreciated . Ive searched on this site but cant find anything similar ?
Its not wolftones from pickups , i tried other guitars.
Looking forward to any help
thanks
Comments
Have a look at the power valves and see if they’re glowing properly blue - easiest to see as you switch from standby to fully on.
If one isn’t, remove the other one and test the amp - if it’s now silent, the valve still in it may be dead.
The problem is that this fault can be caused by a blown resistor as well - either a power valve screen resistor or a phase inverter plate resistor.
Or it may be something else entirely...
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein
As above it's likely to be either valves or caps.
I've seen plenty of these amps with defective caps.
https://jpfamps.com/fender-hot-rod-deluxe-guitar-amp-repair-new-filter-caps/