Pye PCR HT voltage? - Page 2 - UK Vintage Radio Repair and Restoration Discussion Forum

clay shooter · 23rd Apr 2015, 8:29 am

Thanks. I seem to know about overheating at the moment !

clay shooter · 27th Apr 2015, 1:15 pm

R. I.P. Transformer !
70 years of service then you cremate your self !

PJL · 27th Apr 2015, 5:12 pm

I assume by your last post that the transformer deteriorated further?

clay shooter · 28th Apr 2015, 10:08 am

A new smoothing capacitor was fitted and the voltage came up to 215v so I reconnected the receiver and it worked for about 5mins then...... Lots of foul smoke and melted windings!
Now I am looking for a replacement transformer

Ed_Dinning · 28th Apr 2015, 9:25 pm

Hi, if you fail to find an equivalent transformer and originality is important then the cremated one can probably be rewound.

Ed

G3VKM_Roger · 29th Apr 2015, 6:42 am

Does anyone have the type numbers for the selenium diodes used in the PCR PSUs? I'd also be interested in typical values of forward and reverse resistance for the diodes, using an AVO8 or similar meter.

TIA,

Roger

clay shooter · 6th Aug 2015, 10:25 pm

Sorry for the long time in updating the progression of the pcr, an alternative transformer has been found, but due to unforseen family problems it has not yet been fitted , but the light is visible at the end of the tunnel and I should be able to fit and test soon...... I hope. Thank you all again for your help

23rd Apr 2015, 8:29 am	#21
clay shooter Pentode Join Date: Jul 2014 Location: Northamptonshire, UK. Posts: 135	Re: Pye PCR HT voltage? Thanks. I seem to know about overheating at the moment ! __________________ If it ain't bust don't fix it

27th Apr 2015, 1:15 pm	#22
clay shooter Pentode Join Date: Jul 2014 Location: Northamptonshire, UK. Posts: 135	Re: Pye PCR HT voltage? R. I.P. Transformer ! 70 years of service then you cremate your self ! __________________ If it ain't bust don't fix it

27th Apr 2015, 5:12 pm	#23
PJL Dekatron Join Date: Sep 2005 Location: Seaford, East Sussex, UK. Posts: 5,997	Re: Pye PCR HT voltage? I assume by your last post that the transformer deteriorated further?

28th Apr 2015, 10:08 am	#24
clay shooter Pentode Join Date: Jul 2014 Location: Northamptonshire, UK. Posts: 135	Re: Pye PCR HT voltage? A new smoothing capacitor was fitted and the voltage came up to 215v so I reconnected the receiver and it worked for about 5mins then...... Lots of foul smoke and melted windings! Now I am looking for a replacement transformer __________________ If it ain't bust don't fix it

28th Apr 2015, 9:25 pm	#25
Ed_Dinning Dekatron Join Date: Jan 2004 Location: Newcastle upon Tyne, Tyne & Wear, UK. Posts: 8,195	Re: Pye PCR HT voltage? Hi, if you fail to find an equivalent transformer and originality is important then the cremated one can probably be rewound. Ed

29th Apr 2015, 6:42 am	#26
G3VKM_Roger Heptode Join Date: Jun 2012 Location: Southeast Norfolk, UK. Posts: 773	Re: Pye PCR HT voltage? Does anyone have the type numbers for the selenium diodes used in the PCR PSUs? I'd also be interested in typical values of forward and reverse resistance for the diodes, using an AVO8 or similar meter. TIA, Roger

6th Aug 2015, 10:25 pm	#27
clay shooter Pentode Join Date: Jul 2014 Location: Northamptonshire, UK. Posts: 135	Re: Pye PCR HT voltage? Sorry for the long time in updating the progression of the pcr, an alternative transformer has been found, but due to unforseen family problems it has not yet been fitted , but the light is visible at the end of the tunnel and I should be able to fit and test soon...... I hope. Thank you all again for your help __________________ If it ain't bust don't fix it