UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

matspar · 6th Mar 2012, 8:36 pm

Hi Lloyd,

I'm still in the dark ages using a system A modulator and 405 tapes, played through a nice early VHS player. I do want to buy an Aurora this year so I can run my old sets properly.
The tuner is on Channel 1 to match the modulators output, and I normally have a 6db attenuator between the two. Cheers for the suggestion though, much appreciated!

Hi John,

The picture does indeed have the hovering effect, and like you say will not lock fully. Good news about the sensitivity pot I shall leave this alone now. The caps are all new in this area but I'll double check they're all in the right place and then go through those resistors.
Something else I was thinking - could the EHT (now derived from a tripler) upset this part of the set if the volts are too high? When I first got a picture the width and height had crept right in possibly suggesting high EHT. I put a 270pf cap from the PL81 top cap down to deck and the picture now fills the entire screen. Didn't change the appearance of it though!
Thanks again for your time John

Matt

6th Mar 2012, 8:36 pm	#45
matspar Pentode Join Date: Aug 2009 Location: Portsmouth, Hampshire, UK. Posts: 230	Re: Pye VT2 EHT problems Hi Lloyd, I'm still in the dark ages using a system A modulator and 405 tapes, played through a nice early VHS player. I do want to buy an Aurora this year so I can run my old sets properly. The tuner is on Channel 1 to match the modulators output, and I normally have a 6db attenuator between the two. Cheers for the suggestion though, much appreciated! Hi John, The picture does indeed have the hovering effect, and like you say will not lock fully. Good news about the sensitivity pot I shall leave this alone now. The caps are all new in this area but I'll double check they're all in the right place and then go through those resistors. Something else I was thinking - could the EHT (now derived from a tripler) upset this part of the set if the volts are too high? When I first got a picture the width and height had crept right in possibly suggesting high EHT. I put a 270pf cap from the PL81 top cap down to deck and the picture now fills the entire screen. Didn't change the appearance of it though! Thanks again for your time John Matt