[Radioroslyn]

Ok so if the caps are good then it would seem that the 5Y4 is very weak. This is what to do. Replace the 5Y4 and connect a voltmeter from the chassis (-) and to pin 8 of the 5Y4 socket (+). Monitor the dc hv when you turn it on. If all is well the voltage start @ 0 and quickly build up to 350vdc or so. Then it will start to drop down to abt 250v or so. The important part is when you 1st turn it on if the hv doesn't rise quickly up and just stays @ 50or so volts turn it off after 15sec. If you don't the plates in the 5Y4 will get RED and VERY ANGRY which is not good.