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FERNSEH · 7th Nov 2017, 9:38 pm

In fact the frame output stage does already receive it’s HT via a 3.3Kohm resistor from the 360 volt supply. According to my notes the decoupled HT supplied to the transformer primary is 290 volts. I’ll take a chance and short out the 3.3K resistor and supply the frame output stage with the full HT. Let’s see what happens.

DFWB.

7th Nov 2017, 9:38 pm	#22
FERNSEH Dekatron Join Date: Mar 2005 Location: Gateshead, Tyne and Wear, UK. Posts: 7,444	Re: 405 colour on my Pye CTV In fact the frame output stage does already receive it’s HT via a 3.3Kohm resistor from the 360 volt supply. According to my notes the decoupled HT supplied to the transformer primary is 290 volts. I’ll take a chance and short out the 3.3K resistor and supply the frame output stage with the full HT. Let’s see what happens. DFWB.