UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Marconi TF 995 B/5 weird waveform need schematic

peter1an · 30th Nov 2017, 3:14 pm

I have measured component values and resistors are 10-20% higher and some caps 10% low, the tripler rather dampened.
However , by increasing the HT3a by 18v and twiddling ,
I have improved the waveform enough to say that will do.
[the dampening is not noticed on higher order outputs]
Thanks for everyones efforts and now to the next problem.
(but I'll keep an eye on this waveform )
ttfn

ps how do i close this thread?

30th Nov 2017, 3:14 pm	#9
peter1an Retired Dormant Member Join Date: Sep 2017 Location: Stoke-on-Trent, Staffordshire, UK. Posts: 6	Re: Marconi TF 995 B/5 weird waveform need schematic I have measured component values and resistors are 10-20% higher and some caps 10% low, the tripler rather dampened. However , by increasing the HT3a by 18v and twiddling , I have improved the waveform enough to say that will do. [the dampening is not noticed on higher order outputs] Thanks for everyones efforts and now to the next problem. (but I'll keep an eye on this waveform ) ttfn ps how do i close this thread?