UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - My first foray into Old model TV repairs. Ferguson 991T.

Heatercathodeshort · 17th Oct 2020, 2:05 pm

Agree. I did mention earlier that it is a fringe model designed to give a picture under very poor conditions such as operation in a very low signal area or a location where excessive interference [motor car ignition or heavy industry] would probably unlock the timebases under severe conditions. It has probably been aligned for gain rather than definition. reducing the bandwidth can eliminate the majority of fine grain [noise] a common feature of fringe area viewing. J.

Realignment is dodgy unless you have a very accurate signal generator paired with a frequency counter. I would be tempted to leave it alone unless you have the equipment.

17th Oct 2020, 2:05 pm	#128
Heatercathodeshort Dekatron Join Date: Jun 2005 Location: Warnham, West Sussex. 10 miles south of DORKING. Posts: 9,147	Re: My first foray into Old model TV repairs. Ferguson 991T. Agree. I did mention earlier that it is a fringe model designed to give a picture under very poor conditions such as operation in a very low signal area or a location where excessive interference [motor car ignition or heavy industry] would probably unlock the timebases under severe conditions. It has probably been aligned for gain rather than definition. reducing the bandwidth can eliminate the majority of fine grain [noise] a common feature of fringe area viewing. J. Realignment is dodgy unless you have a very accurate signal generator paired with a frequency counter. I would be tempted to leave it alone unless you have the equipment.