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

Heatercathodeshort · 5th Feb 2018, 8:42 pm

Change the frame output valve. These lines were known as 'telegraph wires, and were very common with the N379/PL84 valve. It is called bachxxxxxxI can't spell it oscillation!

The main smoothing block has probably deteriorated causing the snaking.

John.

5th Feb 2018, 8:42 pm	#6
Heatercathodeshort Dekatron Join Date: Jun 2005 Location: Warnham, West Sussex. 10 miles south of DORKING. Posts: 9,147	Re: GEC BT336 possible tube change Change the frame output valve. These lines were known as 'telegraph wires, and were very common with the N379/PL84 valve. It is called bachxxxxxxI can't spell it oscillation! The main smoothing block has probably deteriorated causing the snaking. John.