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

Andy - G8MNM · 13th Sep 2011, 7:04 pm

Hi Col,

I'm enjoying reading part two of your TV restoration journey.
As you now have EHT and as yet no first light you could check the boost HT feed to the 1st Anode on the CRT base connector. I think you will find it quite a high value resistor which can go very high in value and result in no raster.
As I am not familiar with the set or the circuit I cannot be more specific than that. If you let me know what Tube you have in the set I could tell you the pin number to check on the tube.
I remember when I used to round the TV shops as a youngster asking for old TVs and was given one with a supposedly duff tube. It turned out the resistor feeding the 1st anode on the tube had gone sky high resulting in little or no voltage on the CRT resulting in no raster.
Good luck. You are doing great with your first TV!

Regards

Andy

13th Sep 2011, 7:04 pm	#107
Andy - G8MNM Hexode Join Date: Apr 2008 Location: Perigord Noir, France Posts: 352	Re: Restorers dream part 2 the chassis. Hi Col, I'm enjoying reading part two of your TV restoration journey. As you now have EHT and as yet no first light you could check the boost HT feed to the 1st Anode on the CRT base connector. I think you will find it quite a high value resistor which can go very high in value and result in no raster. As I am not familiar with the set or the circuit I cannot be more specific than that. If you let me know what Tube you have in the set I could tell you the pin number to check on the tube. I remember when I used to round the TV shops as a youngster asking for old TVs and was given one with a supposedly duff tube. It turned out the resistor feeding the 1st anode on the tube had gone sky high resulting in little or no voltage on the CRT resulting in no raster. Good luck. You are doing great with your first TV! Regards Andy __________________ Member BVWS https://www.lushanda.com/