CP90 PYE 15” TV, no power led or picture. Buzzing sound - Page 6 - UK Vintage Radio Repair and Restoration Discussion Forum

Maarten · 25th Apr 2020, 10:34 am

I don't know for this exact model and revision, but in general HR transformers were as reliable as the original. In this case, particular revisions of the original may last shorter than their equivalent but at least a good few years.

Kyle__B · 25th Apr 2020, 12:58 pm

It's not really possible to give a lifespan for something like this, it depends on too much. But if it's been 20 or 30 years and it breaks then you figure fair enough.

Red to black · 25th Apr 2020, 1:55 pm

I have come across HR/Diemen replacement transformers fail anywhere between 5 and about 8 years, which was often longer than the original lasted!!!
People hung on to stuff a lot longer, stuff also mostly lasted a lot longer.

It just goes to show how much things and build quality have changed over the years, even within the last one or two decades.

Heatercathodeshort · 25th Apr 2020, 2:22 pm

Agree but are you surprised when you can buy a 42" top name TV for £199. You cannot expect the best quality computer grade capacitors at this ridiculous price. If it lasts 5 years and used with care, [not remotes thrown at the screen] it probably will. That is only 80p per week. The last high spec 32" Toshiba CRT TV that I sold cost £1800 including £350 for the glass stand!
I have a feeling that most items are going to cost more in the future.

The replacement transformers had/have a good life. They were high spec and I can't remember actually replacing a faulty one. The K series Philips lopts and the G11 were very reliable. Has anyone who was around at the time had to replace a G11 transformer? John.

Tvnoob007 · 26th Apr 2020, 1:27 am

so essentially the Philips which might be old new stock should last similar to a HR.

that sounds good as this set will be rarely used anyway.

Heatercathodeshort · 26th Apr 2020, 11:53 am

It will probably see you 'out' as my old Gran used to say. John.

Welsh Anorak · 27th Apr 2020, 11:06 am

I did replace a G11 LOPT once as some idiot (!) dropped the line panel and broke the 'chimney' clean off. Hardly Philips' fault!
Luckily they were so reliable and hence unwanted that Sendz Components suppled a replacement for around a pound.
I wouldn't worry about the longevity of the new LOPT - keep the set warm and dry and I don't think you'll ever need to replace it again. It's probable that Philips improved the design of the transformer along the way.

25th Apr 2020, 10:34 am	#101
Maarten Dekatron Join Date: Dec 2007 Location: Haarlem, Netherlands Posts: 4,199	Re: CP90 PYE 15” TV, no power led or picture. Buzzing sound I don't know for this exact model and revision, but in general HR transformers were as reliable as the original. In this case, particular revisions of the original may last shorter than their equivalent but at least a good few years.

25th Apr 2020, 12:58 pm	#102
Kyle__B Banned Join Date: Mar 2020 Location: Nijmegen, Netherlands Posts: 142	Re: CP90 PYE 15” TV, no power led or picture. Buzzing sound It's not really possible to give a lifespan for something like this, it depends on too much. But if it's been 20 or 30 years and it breaks then you figure fair enough.

25th Apr 2020, 1:55 pm	#103
Red to black Nonode Join Date: Mar 2010 Location: Sunderland, Tyne and Wear, UK. Posts: 2,475	Re: CP90 PYE 15” TV, no power led or picture. Buzzing sound I have come across HR/Diemen replacement transformers fail anywhere between 5 and about 8 years, which was often longer than the original lasted!!! People hung on to stuff a lot longer, stuff also mostly lasted a lot longer. It just goes to show how much things and build quality have changed over the years, even within the last one or two decades. __________________ I don't suffer from Insanity. I enjoy every minute of it.

25th Apr 2020, 2:22 pm	#104
Heatercathodeshort Dekatron Join Date: Jun 2005 Location: Warnham, West Sussex. 10 miles south of DORKING. Posts: 9,147	Re: CP90 PYE 15” TV, no power led or picture. Buzzing sound Agree but are you surprised when you can buy a 42" top name TV for £199. You cannot expect the best quality computer grade capacitors at this ridiculous price. If it lasts 5 years and used with care, [not remotes thrown at the screen] it probably will. That is only 80p per week. The last high spec 32" Toshiba CRT TV that I sold cost £1800 including £350 for the glass stand! I have a feeling that most items are going to cost more in the future. The replacement transformers had/have a good life. They were high spec and I can't remember actually replacing a faulty one. The K series Philips lopts and the G11 were very reliable. Has anyone who was around at the time had to replace a G11 transformer? John.

26th Apr 2020, 1:27 am	#105
Tvnoob007 Tetrode Join Date: Apr 2020 Location: Boston, Lincolnshire, UK. Posts: 58	Re: CP90 PYE 15” TV, no power led or picture. Buzzing sound so essentially the Philips which might be old new stock should last similar to a HR. that sounds good as this set will be rarely used anyway.

26th Apr 2020, 11:53 am	#106
Heatercathodeshort Dekatron Join Date: Jun 2005 Location: Warnham, West Sussex. 10 miles south of DORKING. Posts: 9,147	Re: CP90 PYE 15” TV, no power led or picture. Buzzing sound It will probably see you 'out' as my old Gran used to say. John.

27th Apr 2020, 11:06 am	#107
Welsh Anorak Dekatron Join Date: Apr 2005 Location: North Wales, UK. Posts: 6,921	Re: CP90 PYE 15” TV, no power led or picture. Buzzing sound I did replace a G11 LOPT once as some idiot (!) dropped the line panel and broke the 'chimney' clean off. Hardly Philips' fault! Luckily they were so reliable and hence unwanted that Sendz Components suppled a replacement for around a pound. I wouldn't worry about the longevity of the new LOPT - keep the set warm and dry and I don't think you'll ever need to replace it again. It's probable that Philips improved the design of the transformer along the way. __________________ Glyn www.gdelectronics.wales