UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Oh no

Heatercathodeshort · 16th May 2010, 3:28 pm

Hello Dom,
If you only have 7kv the focus magnet will be at an extreme setting. When you manage to get the EHT up a bit you will find it focuses mid range. Looks very good so far. Check the screen feed resistor to pin 8 PL81 and the anode load resistor to the line oscillator for high resistance. Grand work. John.

16th May 2010, 3:28 pm	#45
Heatercathodeshort Dekatron Join Date: Jun 2005 Location: Warnham, West Sussex. 10 miles south of DORKING. Posts: 9,147	Re: Oh no - another V4! Hello Dom, If you only have 7kv the focus magnet will be at an extreme setting. When you manage to get the EHT up a bit you will find it focuses mid range. Looks very good so far. Check the screen feed resistor to pin 8 PL81 and the anode load resistor to the line oscillator for high resistance. Grand work. John.