Thread: Pye VT4.
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Old 12th Apr 2022, 11:46 pm   #10
radiograham
Hexode
 
Join Date: Oct 2017
Location: Manchester, UK.
Posts: 361
Default Re: Pye VT4.

Update,went through all the resistors in line/tb which were all high in value,replaced with 0.6 watt metal film types,also checked 100pf fixed mica and 100pf preset line hold trimmer ,the 3 12uf cap's have been replaced plus all the cap's in tb which were orrible unt's have been changed.The tb now seem's to be working but not very strongly there is a waveform at the line output valve grid but still no eht with a small spark from the ey51 anode.both the pl81 py81 and the ecl80 test 100 %
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