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 Post subject: Duplicate radio, different power supply.
PostPosted: Feb Fri 16, 2018 6:47 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 92
Location: Marquette, Michigan, USA
I just found a duplicate radio to one I already own, a Sylvania 4P14, but it has a different battery arrangement. The first Sylvania I got was a 5P series, had a messed up battery holder for 4 AA size cells. I rebuilt it,and the radio played well. Then I found a 4P14 with no battery holder and had to constructabattery holderfrom scratch. It also plays Welkom the 6 volts. Now I bought another 4P14, but it has a long rectangular 9 volt battery in it, long dead, but not leaking. I am somewhat confused on why the 5P?? Set had4AA cells and the earlier 4P14 runs off 9 volts. Now I have a project to try to duplicate the 9 volt battery for the recent acquisition.

Anyone else run across this kind of variation?


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 Post subject: Re: Duplicate radio, different power supply.
PostPosted: Feb Fri 16, 2018 8:07 pm 
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Location: Mountains of Mourne. Ireland.
Sylvania 4P14 was manufactured to run of 9Volts

Image

What size is your... long rectangular 9 volt battery?

Sylvania 5P*** models were manufactured to run of 6Volts
image: https://i.ebayimg.com/images/g/D-IAAOSw ... -l1600.jpg

4P14 image: https://i.ebayimg.com/images/g/ytEAAOSw ... -l1600.jpg

Greg.

Posting photos to a forum thread.
The skinny: viewtopic.php?p=2717120#p2717120


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 Post subject: Re: Duplicate radio, different power supply.
PostPosted: Feb Fri 16, 2018 8:35 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 92
Location: Marquette, Michigan, USA
I do not have the radio in front of me, but would guess it is about 3/4 inch thick by 1 inch deep and around 3/12 to 4 inches long with a snap on each end. The radio would not accommodate a cylindrical 9 volt.


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 Post subject: Re: Duplicate radio, different power supply.
PostPosted: Feb Fri 16, 2018 11:03 pm 
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Joined: Jan Thu 01, 1970 1:00 am
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Location: SoCal, 91387
I have a 4P19; these sets were made to be powered by 9 volts, and the battery compartment is big enough to park a smart car in... :wink:

I would guess that the 4 AA cell holder was put in by someone who either didn't know how to change the battery snap connectors, or didn't want to pay for a nine volt battery. I changed mine sometime ago, to a nine volt snap connector;


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Sylvania 4P19 back.jpg
Sylvania 4P19 back.jpg [ 223.28 KiB | Viewed 729 times ]

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 Post subject: Re: Duplicate radio, different power supply.
PostPosted: Feb Sat 17, 2018 3:10 am 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 92
Location: Marquette, Michigan, USA
Interesting, the 4 cell AA holder in the 5P ?? was made with cardboard tubes, with metal ends. The battery placement diagram was glued to the tubes so I am sure it was original. The tubes even had " Burgess " brand batteries, the ones with the stripped paint scheme. Unfortunately they had leaked and swelled and I couldn't salvage either the batteries or the tubes. The holder I built for the 5P?? Radio was a replica of the factory one. 4P14 mimicked the factory one in the other radio. I made the metal ends and constructed the twin cardboard tubes too. Now that I know the 4P14 uses that strange battery, I can construct a replica using photo copies of the original one, and stuff it with modern cells. Should be easier than making the cardboard and metal one I made.

Oh, and I did have a 4P19 radio too, it was one of the worst performers I ever had with that weird regenerative detector stage, just way too quirky to be reliable.


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 Post subject: Re: Duplicate radio, different power supply.
PostPosted: Feb Sat 17, 2018 7:51 am 
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Location: SoCal, 91387
I have a couple of the round batteries. If you want one to re-stuff, your's for postage. Just PM me. I'm not sure how you could open it up though, W/O destroying it.

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 Post subject: Re: Duplicate radio, different power supply.
PostPosted: Feb Sat 17, 2018 5:32 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 92
Location: Marquette, Michigan, USA
Fifties,
The round ones won't fit in the 4P14 I don't think. I would try rebuilding them by using a dremel tool and grinding the crimped end to be able to clean out the innards. It would be a messy procedure and might not be worth the effort. There are sellers of vintage looking labels that could be put on batteries built into pvc tubes that could work.
I still haven't identified the one in my radio, and because I'm not home, can't look at it to get more information.
Thanks for the offer.

Bob


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 Post subject: Re: Duplicate radio, different power supply.
PostPosted: Feb Sat 17, 2018 6:05 pm 
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Joined: Jan Tue 31, 2012 1:55 am
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Location: Mountains of Mourne. Ireland.
It's probably the Larger and more economical Eveready 246 as mentioned on the rear cover of Richard's 4P19 above.

Image

Neat advert for 4P19... LIFE magazine January 1961
image: https://books.google.co.uk/books/conten ... NIA&w=1280

Greg.


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 Post subject: Re: Duplicate radio, different power supply.
PostPosted: Feb Sat 17, 2018 6:28 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 92
Location: Marquette, Michigan, USA
It's not the 246, which is thicker and mine has a snap on each end.


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 Post subject: Re: Duplicate radio, different power supply.
PostPosted: Feb Sat 17, 2018 8:07 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 92
Location: Marquette, Michigan, USA
So I just looked at the original EBay listing, and enlarged the interior photo as best as possible. It looks like an eveready # 213 or 215 battery. Don't know for sure because the picture was at an angle and I am viewing it with a not-so-smart phone.


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 Post subject: Re: Duplicate radio, different power supply.
PostPosted: Feb Sat 17, 2018 8:21 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 92
Location: Marquette, Michigan, USA
I think I have it, a # 2362 battery, whew!


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 Post subject: Re: Duplicate radio, different power supply.
PostPosted: Feb Sat 17, 2018 9:48 pm 
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Joined: Jan Tue 31, 2012 1:55 am
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Location: Mountains of Mourne. Ireland.
Very good Bob.

Image

It's listed here as 2364!
https://www.radiomuseum.org/r/eveready_ ... _2364.html

Greg.


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 Post subject: Re: Duplicate radio, different power supply.
PostPosted: Feb Sun 18, 2018 12:15 am 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 92
Location: Marquette, Michigan, USA
Well, I have never seen a radio that used this battery, or even saw the battery used or advertised anywhere.
It's truly an oddity, they must have had a very small usage and were put out of production. So now I have a relatively scarce radio, with an unobtanium battery, cool !
As soon as I get home I will start work on replicating the battery to the best of my ability. I suppose I could just fab up a sleeve to hold a standard modern battery, but what fun would that be ? Glad I finally figured it out, with everybody's help and encouragement.
Two more days soaking up the Mexican sun, then back to frigid Michigan.....yuk.

Bob


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 Post subject: Re: Duplicate radio, different power supply.
PostPosted: Mar Mon 12, 2018 3:41 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 92
Location: Marquette, Michigan, USA
Finally took photos of the battery in the Sylvania. Going to try to photocopy the outside, then build a pack that looks stock. That battery is unobtanium these days. Lucky to even find one in decent condition to look at.

PS: I powered up the radio from my bench supply, it plays fine, won't even have to change electrolytic caps, just clean up the volume and tuning controls .


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IMG_2033.JPG
IMG_2033.JPG [ 112.17 KiB | Viewed 380 times ]
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