02-07-2020, 06:45 AM
Apart from checking for loose wires & making sure heater wires are out of the way of IP's etc or you could fit a humdinger and or elevate the chassis ground by putting a 10r in instead of the black wire. On mine getting rid of the combined on/off SW and volume control improved things a lot. Fitting a humdinger reduced hum too, the 10r between chassis and gnd nothing.
Andy.
Andy.







