Rusty-Pye 2 - Son of Rusty-Pye - Page 2 - UK Vintage Radio Repair and Restoration Discussion Forum

Mikey405 · 26th Jul 2013, 7:02 am

Thanks everyone for your kind replies. I've now brought everything back up to Solihull; I'll have a crack at some of it on Saturday and report back the results.

Thanks all.

Kind regards.

From Mike.

Focus Diode · 26th Jul 2013, 11:12 am

Certainly restoration isn't impossible. It helps that the frame, decoder and CDA panels are roughly similar to versions used in later single standard models so spares shouldn't be a problem here. My main concern is the lack of X-Ray shield which houses the GY501 and PD500. If all else fails re getting a suitable replacement there's always tripler conversion to consider.

Many may recall Chas E Miller's tale about a GEC 2028 which had been abandoned in a shed when its LOPT failed, it got filled up to the brim with seed which attracted mice who "lived" in the set chewing cables galore not forgetting the mess they left behind. It was placed next to a working identical set where Chas' friend got to work. With much time and patience the set was restored to full health!

Good luck with the set. Looking forward to hearing more.

Cheers,
Brian

Tazman1966 · 26th Jul 2013, 9:10 pm

Looking forward to the next installment Mike

AC/HL · 26th Jul 2013, 11:56 pm

Quote:

Originally Posted by Focus Diode

My main concern is the lack of X-Ray shield which houses the GY501 and PD500.

It wasn't uncommon to find missing screens, or rather not to find them

Mikey405 · 27th Jul 2013, 9:25 am

Hi Brian, Tas and AC/HL.

Don't worry - I'll not be using it without the screens Brian. If I can find a whole new or second-hand tower then I may take the cowards way out and just replace it completely.

And thanks Tas for the encouragement. I've washed the CDA panel and have started replacing any duff components. No idea where to get stand-offish valve holders though. I may have to replace them with standard ones.

Kind regards.

From Mike.

Alan Stepney · 27th Jul 2013, 11:25 am

There is just a chance that I might have some stand-ff valve holders.
Not sure, or if I have, where they are, but if I come across them, I'll let you know.

Mike Phelan · 27th Jul 2013, 3:52 pm

Don't forget to lower the values of the grid leaks on the CDA panel to save PCL 84's, Mike.

Dedication, eh?

bobbyball · 27th Jul 2013, 5:23 pm

I've got a nice "solid state" CDA panel going spare if you like, no more pesky valves

Seriously, I might have the odd stand off one too if I can find them...

Philips210 · 27th Jul 2013, 5:34 pm

This looks to be a really challenging and interesting project. I'd love to have a go at renovating one of these Pye D/S colour TVs. I did though, enjoy having had some experience with The Philips G6 and GEC 2028 D/S sets.

My main experience with the Pyes was with the S/S versions. The earliest being a 25" 691 chassis with fully hand wire line timebase unit which of course had a tripler rather than the GY501/PD500 eht valves. I much preferred the early Pye hybrids to the later versions with that horrible printed timebase board.
I must admit that the LOPT on the S/S sets that I handled all seemed to soldier on quite well and remember only replacing just one transformer. No doubt in the D/S version the 25kV eht over-winding is the main concern. I wonder how the Pye D/S LOPT compares to the other D/S makes for reliability.

Good luck with your set Mike.

Regards
Symon.

Focus Diode · 29th Jul 2013, 6:32 pm

Quote:

Originally Posted by Mike Phelan

Don't forget to lower the values of the grid leaks on the CDA panel to save PCL 84's, Mike.

I second that Mike. Your advice to reduce the PCL84 grid leak resistors from 2M2 to 680K several years ago does considerably improve reliability. This also cured a fading red problem I had on a CT205 without having to replace the relevant valve with no further problems over a long period.

Brian

26th Jul 2013, 7:02 am	#21
Mikey405 Octode Join Date: Jul 2006 Location: Solihull, West Midlands and Beaford, Devon Posts: 1,626	Re: Rusty-Pye 2 - Son of Rusty-Pye Thanks everyone for your kind replies. I've now brought everything back up to Solihull; I'll have a crack at some of it on Saturday and report back the results. Thanks all. Kind regards. From Mike. __________________ G7TRF

26th Jul 2013, 11:12 am	#22
Focus Diode Octode Join Date: Jan 2006 Location: Borough of Gateshead, UK. Posts: 1,420	Re: Rusty-Pye 2 - Son of Rusty-Pye Certainly restoration isn't impossible. It helps that the frame, decoder and CDA panels are roughly similar to versions used in later single standard models so spares shouldn't be a problem here. My main concern is the lack of X-Ray shield which houses the GY501 and PD500. If all else fails re getting a suitable replacement there's always tripler conversion to consider. Many may recall Chas E Miller's tale about a GEC 2028 which had been abandoned in a shed when its LOPT failed, it got filled up to the brim with seed which attracted mice who "lived" in the set chewing cables galore not forgetting the mess they left behind. It was placed next to a working identical set where Chas' friend got to work. With much time and patience the set was restored to full health! Good luck with the set. Looking forward to hearing more. Cheers, Brian

26th Jul 2013, 9:10 pm	#23
Tazman1966 Nonode Join Date: May 2006 Location: St Albans, Herts, UK. Posts: 2,193	Re: Rusty-Pye 2 - Son of Rusty-Pye Looking forward to the next installment Mike __________________ All the very best, Tas

27th Jul 2013, 9:25 am	#25
Mikey405 Octode Join Date: Jul 2006 Location: Solihull, West Midlands and Beaford, Devon Posts: 1,626	Re: Rusty-Pye 2 - Son of Rusty-Pye Hi Brian, Tas and AC/HL. Don't worry - I'll not be using it without the screens Brian. If I can find a whole new or second-hand tower then I may take the cowards way out and just replace it completely. And thanks Tas for the encouragement. I've washed the CDA panel and have started replacing any duff components. No idea where to get stand-offish valve holders though. I may have to replace them with standard ones. Kind regards. From Mike. __________________ G7TRF

27th Jul 2013, 11:25 am	#26
Alan Stepney Rest in Peace Join Date: Feb 2008 Location: Dorset, UK. Posts: 947	Re: Rusty-Pye 2 - Son of Rusty-Pye There is just a chance that I might have some stand-ff valve holders. Not sure, or if I have, where they are, but if I come across them, I'll let you know.

27th Jul 2013, 3:52 pm	#27
Mike Phelan Dekatron Join Date: Nov 2003 Location: Near Leeds, West Yorkshire, UK Posts: 4,609	Re: Rusty-Pye 2 - Son of Rusty-Pye Don't forget to lower the values of the grid leaks on the CDA panel to save PCL 84's, Mike. Dedication, eh? __________________ Mike.

27th Jul 2013, 5:23 pm	#28
bobbyball Octode Join Date: Jul 2011 Location: Stockport, Greater Manchester Posts: 1,217	Re: Rusty-Pye 2 - Son of Rusty-Pye I've got a nice "solid state" CDA panel going spare if you like, no more pesky valves Seriously, I might have the odd stand off one too if I can find them... __________________ Robert

27th Jul 2013, 5:34 pm	#29
Philips210 Nonode Join Date: May 2007 Location: Redruth, Cornwall, UK. Posts: 2,580	Re: Rusty-Pye 2 - Son of Rusty-Pye This looks to be a really challenging and interesting project. I'd love to have a go at renovating one of these Pye D/S colour TVs. I did though, enjoy having had some experience with The Philips G6 and GEC 2028 D/S sets. My main experience with the Pyes was with the S/S versions. The earliest being a 25" 691 chassis with fully hand wire line timebase unit which of course had a tripler rather than the GY501/PD500 eht valves. I much preferred the early Pye hybrids to the later versions with that horrible printed timebase board. I must admit that the LOPT on the S/S sets that I handled all seemed to soldier on quite well and remember only replacing just one transformer. No doubt in the D/S version the 25kV eht over-winding is the main concern. I wonder how the Pye D/S LOPT compares to the other D/S makes for reliability. Good luck with your set Mike. Regards Symon.