Thanks to all for your helpful suggestions. The amp had a "two wire plug" . I changed it to a three wire plug and connected the ground wire to the steelThanks to all for your helpful suggestions. The amp had a "two wire plug" . I changed it to a three wire plug and connected the ground wire to the steel
to the steel chassis holding the circuit board. The "hum" is gone. slience is golden!to the steel chassis holding the circuit board. The "hum" is gone. slience is golden!
AnonymousMar 30, 2014
specifications for a peavey backstage plus reverb tankspecifications for a peavey backstage plus reverb tank
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You can get the best answer from Peavey directly. here's their link- Peavey com
If you decide to send itto them for service, here's that info- Peavey com
If it has a effects loop output and input on the p.a. head and a in and out on the reverb effects processor, then yes you can, just run the effects loop output signal into the input on your reverb processor, out of the output back into the input effects loop on the p.a. head, kinda like you would a effects pedal thru the effects loop of a guitar amplifier. hope this helps!
Could be a couple things. Check grounds. Make sure cables do not have broken conductors, Make sure all tubes are fully seated. look for broken wires on chassis, spray a little contact cleaner into the jacks and insert and pull out plug a few times to clean the interrupts. Check the tubes for heater to cathode shorts,
Check for florescent lighting and similar noise sources with an AM/MW transistor radio, and if nothing is found externally, then you need to look at the condition of the filter caps in the power supply. The filter caps "may" show signs of failure, such as bulging, or leaking a black ooze, but they can also fail with no outward evidence.
The problem is LIKELY a broken solder joint right at where the leads of the volume pot come through the circuit board. The broken joint will ozidize overnight and then when vibration rattles it it will punch through the oxide. INSPECT all solder for the pot leads. Lood for a TINY grey line in the menicus of the solder where the lead comes through the board.
Thanks to all for your helpful suggestions. The amp had a "two wire plug" . I changed it to a three wire plug and connected the ground wire to the steel
to the steel chassis holding the circuit board. The "hum" is gone. slience is golden!
specifications for a peavey backstage plus reverb tank
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