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PJL · 8th Apr 2020, 11:35 am

Looks like the new rectifier has improved the HT. Suggest you measure V5 anode, screen and cathode voltages to check all is well. The audio output valve can cause major damage to mains and output transformers so it is important to check it is working to specification.

8th Apr 2020, 11:35 am	#61
PJL Dekatron Join Date: Sep 2005 Location: Seaford, East Sussex, UK. Posts: 5,997	Re: Pilot U650 Looks like the new rectifier has improved the HT. Suggest you measure V5 anode, screen and cathode voltages to check all is well. The audio output valve can cause major damage to mains and output transformers so it is important to check it is working to specification.