2 valve PYE ?model - UK Vintage Radio Repair and Restoration Discussion Forum

10davinvi276 · 10th Dec 2009, 1:22 pm

Hi- I have an old PYE 2 valve radio which I would like to restore. No model no that I can find. Would anyone know the model and how to locate a wiring diagram. The valves currently are Mullard PEN 47 and Mazda (faded and spec not clear). Should one change all the caps electrolytic, papers or test them first. This is my first such project. thanks for the help. andrew south africa

Darren-UK · 10th Dec 2009, 1:52 pm

It looks rather like a model K, data available via the link at top right of page.

I wouldn't bother testing paper caps, just get rid and replace. Electrolytics may reform.

paulsherwin · 10th Dec 2009, 2:08 pm

Treat that metal rectifier with suspicion too. It would probably be better to wire it out of circuit and replace with a silicon diode and resistor hidden away somewhere.

Paul

Ed_Dinning · 10th Dec 2009, 10:51 pm

Hi, I've some similar PYE sets and the paper caps were fine, but the resistors had all gone seriously high.
The rectifier is a copper Oxide type that may go high resistance, it can esily be bypassed wirh a silicon doide and resistor.
Treat the tuning cap with great care, some of these used cast "monkey metal" frames that can easily fall apart.
Enjoy the restoration.
Ed

10davinvi276 · 13th Dec 2009, 6:31 pm

Thanks for all the advise. I bought the service data above and it is the model K. best andrew

10th Dec 2009, 1:22 pm	#1
10davinvi276 Retired Dormant Member Join Date: Dec 2009 Location: Johannesburg, South Africa. Posts: 2	2 valve PYE ?model Hi- I have an old PYE 2 valve radio which I would like to restore. No model no that I can find. Would anyone know the model and how to locate a wiring diagram. The valves currently are Mullard PEN 47 and Mazda (faded and spec not clear). Should one change all the caps electrolytic, papers or test them first. This is my first such project. thanks for the help. andrew south africa Attached Thumbnails

10th Dec 2009, 1:52 pm	#2
Darren-UK Retired Dormant Member Join Date: Apr 2003 Location: Blackpool, Lancashire, UK. Posts: 4,061	Re: 2 valve PYE ?model It looks rather like a model K, data available via the link at top right of page. I wouldn't bother testing paper caps, just get rid and replace. Electrolytics may reform.

10th Dec 2009, 2:08 pm	#3
paulsherwin Moderator Join Date: Jun 2003 Location: Oxford, UK Posts: 27,960	Re: 2 valve PYE ?model Treat that metal rectifier with suspicion too. It would probably be better to wire it out of circuit and replace with a silicon diode and resistor hidden away somewhere. Paul

10th Dec 2009, 10:51 pm	#4
Ed_Dinning Dekatron Join Date: Jan 2004 Location: Newcastle upon Tyne, Tyne & Wear, UK. Posts: 8,195	Re: 2 valve PYE ?model Hi, I've some similar PYE sets and the paper caps were fine, but the resistors had all gone seriously high. The rectifier is a copper Oxide type that may go high resistance, it can esily be bypassed wirh a silicon doide and resistor. Treat the tuning cap with great care, some of these used cast "monkey metal" frames that can easily fall apart. Enjoy the restoration. Ed

13th Dec 2009, 6:31 pm	#5
10davinvi276 Retired Dormant Member Join Date: Dec 2009 Location: Johannesburg, South Africa. Posts: 2	Re: 2 valve PYE ?model Thanks for all the advise. I bought the service data above and it is the model K. best andrew