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Vintage Radio (domestic) Domestic vintage radio (wireless) receivers only. |
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27th Dec 2016, 6:21 pm | #1 |
Tetrode
Join Date: Dec 2016
Location: Glasgow, Scotland, UK.
Posts: 83
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Nova PAL 104 advice. Actually a 410.
Hello everyone.
I bought the above radio today- opened the back and one of the capacitors looks to be covered in molten wax. Would I be right in thinking it's blown? There are two outputs, 3.5mm and 6.35mm or 1/4". would these be mono outputs? I would like to use it as a radio, as I think the frequency bands for marine etc are all on higher frequencies now? I gave it a good clean with a well-wrung out cloth with some hand soap- it does look very nice now; also gave the leather case a clean. Bearing in mind it only cost £7, is it worth repairing? Also, is there a manual for it and circuit diagram. Any advice gratefully appreciated, this is my first post. Regards, David. |
27th Dec 2016, 7:41 pm | #2 |
Moderator
Join Date: Jan 2003
Location: Ipswich, Suffolk, IP4, UK.
Posts: 21,289
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Re: Nova PAL 104 advice
Are you sure about the model number? Could it be a 410?
Pictures of the radio and the cap in question would help.
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Graham. Forum Moderator Reach for your meter before you reach for your soldering iron. |
27th Dec 2016, 8:28 pm | #3 |
Tetrode
Join Date: Dec 2016
Location: Glasgow, Scotland, UK.
Posts: 83
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Re: Nova PAL 104 advice
Hello!
Yes, it's a 410, but I can't seem to upload images? Thanks for reply! David. |
27th Dec 2016, 8:58 pm | #4 |
Nonode
Join Date: Dec 2012
Location: Bocking, near Braintree, Essex, UK.
Posts: 2,071
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Re: Nova PAL 104 advice
Hello David
Welcome to our forum, here you will find lots of members that have a vast experience of not only radio but television and other audio devices and sets. We are here to help new members like you and are very happy and obliging to pass on all the advice and help you will require, so do not be afraid to ask, even I have to at times. That said, Graham seems to think it is the model 410, it would be advisable to check the make, model and if possible put a picture of the set on here so that others can see. I do not know the model personally but is this a solid state set ie transistorised? or valve. If it is a mains driven valve set I would advise changing the smoothing capacitor which is the one after the rectifier, and if there are any waxie looking capacitors change these especially the ones that couple one stage to the next. But of course you will need the circuit diagram which can be obtained by clicking on the top right of this page. Good Luck, keep going and searching for other makes, models and no matter how old they are. Best wishes Ken |
27th Dec 2016, 9:04 pm | #5 |
Nonode
Join Date: Dec 2012
Location: Bocking, near Braintree, Essex, UK.
Posts: 2,071
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Re: Nova PAL 104 advice
Hi David
Once you have got the picture on your computer, in replying, click go to advance and there is a tab which allows you to put an image once you have selected click upload, then close that panel then post reply, if I haven't got this right Graham can crown me. Regards Ken |
27th Dec 2016, 9:09 pm | #6 |
Tetrode
Join Date: Dec 2016
Location: Glasgow, Scotland, UK.
Posts: 83
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Re: Nova PAL 104 advice
Hello Ken.
It won't let me upload pics but I did send the moderator my email address as the pics might be available that way. The model is indeed a -410, the back of the case said 104. Also, on the leather case and the bottom of the radio was an inscription 'Ayles' and the 'White Idler'- I wonder if that was the name of the boat? David. Last edited by David001; 27th Dec 2016 at 9:21 pm. Reason: Typo |
27th Dec 2016, 9:11 pm | #7 |
Tetrode
Join Date: Dec 2016
Location: Glasgow, Scotland, UK.
Posts: 83
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Re: Nova PAL 104 advice
It is a transistor model, works off 4 AA batteries, grey finish.
Battery pack is reading 5.54V, all I get is a slight hiss. No LED indicates. David. |
27th Dec 2016, 9:46 pm | #10 |
Moderator
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Location: Ipswich, Suffolk, IP4, UK.
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Re: Nova PAL 104 advice. Actually a 410.
This thread gives details of how to post pictures:-
https://www.vintage-radio.net/forum/...ad.php?t=77650
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Graham. Forum Moderator Reach for your meter before you reach for your soldering iron. |
28th Dec 2016, 10:02 am | #11 |
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Re: Nova PAL 104 advice. Actually a 410.
Here are the OP's pictures.
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Graham. Forum Moderator Reach for your meter before you reach for your soldering iron. |
28th Dec 2016, 11:08 am | #12 |
Moderator
Join Date: Dec 2010
Location: Exeter, Devon and Poole, Dorset UK.
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Re: Nova PAL 104 advice. Actually a 410.
Normally the first place to look for service information is top right
However in this case its not available. I can however be found on Radiomuseum http://www.radiomuseum.org/r/novatech_nova_pal.html Guests can download a limited number of pages. Do not publish the circuit on this or any other forum you will end up getting barred from radiomuseum. Cheers Mike T
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28th Dec 2016, 11:36 am | #13 |
Tetrode
Join Date: Dec 2016
Location: Glasgow, Scotland, UK.
Posts: 83
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Re: Nova PAL 104 advice. Actually a 410.
Thanks to the moderator for uploading my pics
I wonder if anyone on this forum knows where I could get it serviced? Or, if anyone on the forum would be interested in fixing it, I'm happy to pay for the repair. Regards, David. |
28th Dec 2016, 1:06 pm | #14 |
Heptode
Join Date: Mar 2016
Location: Essex, UK.
Posts: 602
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Re: Nova PAL 104 advice. Actually a 410.
The wax on the capacitor is probably just that, wax to hold it in place. The hiss from the speaker shows the audio stage is working, if the capacitor was faulty, a short circuit would show up as extra drain current from the battery, and an open circuit capacitor of this type in this position would not stop the radio working. The waveband switches should be looked at for dirty contacts or broken wires. A common cause for these types of radios not working is the detector diode failing, often a transistor junction is used instead of a diode and bridging the junction with a germanium diode, or another germanium transistor junction, base-emitter or base-collector, can fix the fault.
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28th Dec 2016, 1:17 pm | #15 |
Tetrode
Join Date: Dec 2016
Location: Glasgow, Scotland, UK.
Posts: 83
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Re: Nova PAL 104 advice. Actually a 410.
It's a very quiet hiss but thanks for the above reply. I think it needs properly looked at- can any forum member recommend a repair service in Glasgow?
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28th Dec 2016, 1:33 pm | #16 |
Moderator
Join Date: Jan 2003
Location: Ipswich, Suffolk, IP4, UK.
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Re: Nova PAL 104 advice. Actually a 410.
Try posting in the "Repair and Restoration Services Wanted" section.
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Graham. Forum Moderator Reach for your meter before you reach for your soldering iron. |
28th Dec 2016, 3:12 pm | #17 |
Tetrode
Join Date: Dec 2016
Location: Glasgow, Scotland, UK.
Posts: 83
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Re: Nova PAL 104 advice. Actually a 410.
Great idea!
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29th Dec 2016, 9:10 am | #18 |
Rest in Peace
Join Date: Mar 2011
Location: Basildon, Essex, UK.
Posts: 4,100
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Re: Nova PAL 104 advice. Actually a 410.
I think the Radio Museum has stopped the free for all downloads now.
Mike |