I replaced the 12AX7 with a Chinese tube and that got rid of some of the background hum, but not all, sounds like the part that got eliminated is of a lower frequency. I've looked at all 3 circuit boards for bad solder joints and re-soldered a couple that seemed dodgy but it seems to have been of no consequence as the symptoms remain. In this scenario holding the guitar cable and moving it around affects the amount of noise and the "reception", like the cable is an antenna. If I plug a guitar cable in there is additional hum and RF (local country station) especially if I turn the volume pot to zero or turn up the reverb pot. I'm thinking maybe filter caps but I haven't gotten to swapping them out. It has a steady background hum that is not affected by any of the controls. Problem z wzmacniaczem marshall valvestate vs100.Hey guys, I'm working on a Marshall VS 265, stereo power amps with chorus which has potentially a number of issues (different symptoms at any rate). Vs65 valvestate circuit vs100 schematy drtube esquema firmowe schemat tremolo potencia Marshall Presenta La Nuova Linea DSL dsl suono fornito jcm2000 conserva ammiraglia valvola diverso intatto precedente Marshall Valve State VS265 Schematic dokumen.tips Vintage Schematics marshall schematics watt solid state Vintage Schematics schematic schematics jtm mosfet dsl shareware watt jcm Problem Z Wzmacniaczem Marshall Valvestate VS100 - valvestate vs100 wzmacniaczem elektroda Marshall Valvestate Vs100 Circuit Diagram - Diagram Wiring Power Amp Marshall amps 34k Marshall Conversions - Gallery - MARSHALL CONVERSIONS .uk Valvestate wiring 80v schematics Marshall VS100-2, Service Manual, Repair Schematics vs100 Index Of /2-SCHEMATICS/Music-amps/Marshall Schematics wiring bluesbreaker jtm tremolo schematy firmowe 177k How To Repair Marshall VS65R Valvestate Combo Guitar Amp Fix D-lab - YouTube marshall valvestate amp guitar fix repair combo Marshall Valvestate 80v 8080 Manual Index Of /2-SCHEMATICS/Music-amps/Marshall 12 Pics about Index of /2-SCHEMATICS/Music-amps/Marshall : Marshall Valvestate Vs100 Circuit Diagram - diagram wiring power amp, Marshall VS100-2, Service Manual, Repair Schematics and also Marshall Valvestate Vs100 Circuit Diagram - diagram wiring power amp. Index of /2-SCHEMATICS/Music-amps/Marshall.
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