03-07-2009, 05:04 PM
Hi,
By adding the 10K resistor you may have effectively isolated the spurious RF signals that were being filtered out by the last power supply cap. Could move the 10K resistor between the choke and rectifier tube or add a 0.1 uF poly cap after the 10K resistor, connect negative end to the B- bus not chassis.
Saw you got the hum problem solved too. Nice work!
Richard
By adding the 10K resistor you may have effectively isolated the spurious RF signals that were being filtered out by the last power supply cap. Could move the 10K resistor between the choke and rectifier tube or add a 0.1 uF poly cap after the 10K resistor, connect negative end to the B- bus not chassis.
Saw you got the hum problem solved too. Nice work!
Richard
