PYE R33 Over Voltage. - Page 6 - UK Vintage Radio Repair and Restoration Discussion Forum

Freya · 6th Nov 2020, 6:31 pm

That was fast Trevor, you could almost do repairs while you wait

Gabe001 · 6th Nov 2020, 6:45 pm

Very interesting, thanks for the update.

Kentode · 9th Nov 2020, 10:29 am

I've been writing to Trevor on the PM facility but I just wanted to congratulate him here for such quick work, it shows that being self-taught as l am is a poor second to being a time-served technician.

As he stated earlier, the use of an isolation transformer and oscilloscope were instrumental in fault finding.

When I rebuild the radio ( Trevor had the chassis only and l kept the fragile plastic case) it will be my workshop radio and when next l get stuck on something, as I'm sure l will, it will serve as a tribute to the skills and knowledge available from the kind people on this forum.

Thanks to all who contributed...

60 oldjohn · 9th Nov 2020, 11:14 am

Hi Ken, I'm pleased Trevor has been able to sort your radio and so quickly. Like you I am self taught, but nothing beats a time served technician. Well done Trevor.

John.

murphyv310 · 9th Nov 2020, 1:29 pm

Thanks guys for the kind words.
The fault was odd indeed and yes it was indeed light sensitive.
It makes me wonder if it was the PCB rather than the valve that was effected by light?
The radio will be collected by Royal Mail tomorrow so Ken should have it back for the weekend.

Kentode · 12th Nov 2020, 8:43 pm

Well, it's back!

Trevor has done a great job of the new valve socket and l couldn't wait to hear the sound of the radio. The speaker was connected, valves in, switched on.

IT'S ALIVE! MWAHAHA!

On Medium Wave about 13 stations can be heard, which is unusually good for my location. I'll wait until I have to get up in the middle of the night to listen to Long Wave.

It's now in the kitchen for the weekend so I can give it a good run, then back to my workshop.

After Christmas I'm going to fit a bulb and holder to illuminate the scale and repair, with Araldite, the broken plastic chassis securing lug nearest the volume knob.

As usual l pencilled the date and my initials on the back of the chassis, with the qualifier +Trevor.

I'll close with a quote from Ken Dodd: "This (show) is educational ; when you get home tonight you'll say ' Well that taught me a lesson'!"

Gabe001 · 12th Nov 2020, 9:21 pm

Just watched Trevor's video of the repair, radio sounds really good!

Well done both.

murphyv310 · 13th Nov 2020, 3:08 pm

Hi.
Many thanks for the update.
It was an odd issue and initially I really thought it was coincidence the fault cleared but after some thoughts and a soak test it was obvious that the PCB was the issue. The original base may have responded to tightening with a needle but removing it gave me the opportunity to clean that part of the PCB and fit a new one which I had in stock.

Al (astral highway) · 13th Nov 2020, 3:11 pm

Quote:

Originally Posted by Kentode

Well, it's back!

Trevor has done a great job of the new valve socket and l couldn't wait to hear the sound of the radio. The speaker was connected, valves in, switched on.

What a great result. Congrats to Trevor and I'm happy you are reunited with your radio and checking out the airwaves at all times of day and night!

Kentode · 13th Nov 2020, 7:32 pm

Thanks Al and I'm glad to see your project is back on the bench. I always wonder what's going on when the OP goes quiet after a problematic thread. We are all getting a bit stir crazy and looking back on this thread l can see the rollercoaster of emotions I've been through!

6th Nov 2020, 6:31 pm	#101
Freya Octode Join Date: Jan 2009 Location: Falmouth, Cornwall, UK. Posts: 1,990	Re: PYE R33 Over Voltage. That was fast Trevor, you could almost do repairs while you wait __________________ Stephen _________"It`s only an old telly" ___

6th Nov 2020, 6:45 pm	#102
Gabe001 Octode Join Date: Oct 2019 Location: Stockport, Greater Manchester, UK. Posts: 1,646	Re: PYE R33 Over Voltage. Very interesting, thanks for the update.

9th Nov 2020, 10:29 am	#103
Kentode Octode Join Date: Mar 2015 Location: Yorkshire, England. Posts: 1,301	Re: PYE R33 Over Voltage. I've been writing to Trevor on the PM facility but I just wanted to congratulate him here for such quick work, it shows that being self-taught as l am is a poor second to being a time-served technician. As he stated earlier, the use of an isolation transformer and oscilloscope were instrumental in fault finding. When I rebuild the radio ( Trevor had the chassis only and l kept the fragile plastic case) it will be my workshop radio and when next l get stuck on something, as I'm sure l will, it will serve as a tribute to the skills and knowledge available from the kind people on this forum. Thanks to all who contributed... __________________ Regards, Ken. BVWS member

9th Nov 2020, 11:14 am	#104
60 oldjohn Dekatron Join Date: Dec 2004 Location: East Yorkshire, UK. Posts: 3,988	Re: PYE R33 Over Voltage. Hi Ken, I'm pleased Trevor has been able to sort your radio and so quickly. Like you I am self taught, but nothing beats a time served technician. Well done Trevor. John. __________________ My favourite text message "I'll be there in five minutes, if not read again"

9th Nov 2020, 1:29 pm	#105
murphyv310 Dekatron Join Date: Sep 2006 Location: Kilmarnock, Ayrshire, UK. Posts: 5,422	Re: PYE R33 Over Voltage. Thanks guys for the kind words. The fault was odd indeed and yes it was indeed light sensitive. It makes me wonder if it was the PCB rather than the valve that was effected by light? The radio will be collected by Royal Mail tomorrow so Ken should have it back for the weekend. __________________ Cheers, Trevor. MM0KJJ. RSGB, GQRP, WACRAL, K&LARC. Member

12th Nov 2020, 8:43 pm	#106
Kentode Octode Join Date: Mar 2015 Location: Yorkshire, England. Posts: 1,301	Re: PYE R33 Over Voltage. Well, it's back! Trevor has done a great job of the new valve socket and l couldn't wait to hear the sound of the radio. The speaker was connected, valves in, switched on. IT'S ALIVE! MWAHAHA! On Medium Wave about 13 stations can be heard, which is unusually good for my location. I'll wait until I have to get up in the middle of the night to listen to Long Wave. It's now in the kitchen for the weekend so I can give it a good run, then back to my workshop. After Christmas I'm going to fit a bulb and holder to illuminate the scale and repair, with Araldite, the broken plastic chassis securing lug nearest the volume knob. As usual l pencilled the date and my initials on the back of the chassis, with the qualifier +Trevor. I'll close with a quote from Ken Dodd: "This (show) is educational ; when you get home tonight you'll say ' Well that taught me a lesson'!" Attached Thumbnails __________________ Regards, Ken. BVWS member

12th Nov 2020, 9:21 pm	#107
Gabe001 Octode Join Date: Oct 2019 Location: Stockport, Greater Manchester, UK. Posts: 1,646	Re: PYE R33 Over Voltage. Just watched Trevor's video of the repair, radio sounds really good! Well done both.

13th Nov 2020, 3:08 pm	#108
murphyv310 Dekatron Join Date: Sep 2006 Location: Kilmarnock, Ayrshire, UK. Posts: 5,422	Re: PYE R33 Over Voltage. Hi. Many thanks for the update. It was an odd issue and initially I really thought it was coincidence the fault cleared but after some thoughts and a soak test it was obvious that the PCB was the issue. The original base may have responded to tightening with a needle but removing it gave me the opportunity to clean that part of the PCB and fit a new one which I had in stock. __________________ Cheers, Trevor. MM0KJJ. RSGB, GQRP, WACRAL, K&LARC. Member

13th Nov 2020, 7:32 pm	#110
Kentode Octode Join Date: Mar 2015 Location: Yorkshire, England. Posts: 1,301	Re: PYE R33 Over Voltage. Thanks Al and I'm glad to see your project is back on the bench. I always wonder what's going on when the OP goes quiet after a problematic thread. We are all getting a bit stir crazy and looking back on this thread l can see the rollercoaster of emotions I've been through! __________________ Regards, Ken. BVWS member