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 Post subject: Radiola 25 advertised locally
PostPosted: Jan Sun 12, 2020 11:08 pm 
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Location: Florence, SC 29506
How much should I pay for this Radiola 25, no tubes and patched up speaker? It is advertised locally.

Ed

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 Post subject: Re: Radiola 25 advertised locally
PostPosted: Jan Sun 12, 2020 11:18 pm 
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Location: Carmel, Indiana
It all comes down to how badly you want it. It's dusty and dirty so it hasn't been refinished or restored. With no tubes, I'd say no more then $50 to $75. Hopefully all of the coils and audios are good or it will be a messy restoration. 199 tubes that test good will average around $15 to $20 each. The RCA 25 is a great looking radio but as far as selectivity and audio are concerned, it lacks behind your typical homebrew Remler or Victoreen superhet. In clean, complete, working condition, that set would sell for around $250 to $300 or so.

If the seller hasn't come up with a price, that usually indicates that he/she is hoping for more then what it should realistically bring, especially in it's current condition. If the seller want's Ebay prices then I suggest the seller sell it on Ebay, otherwise, accept much lower local prices.

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 Post subject: Re: Radiola 25 advertised locally
PostPosted: Jan Mon 13, 2020 1:44 pm 
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Location: Florence, SC 29506
Thank you for the information. The seller was at $250 and is now at $150. I’m not super excited about it, but somewhat interested. My Radiola III is peculiar about the power supply. I suppose this one will be as well.

Ed

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 Post subject: Re: Radiola 25 advertised locally
PostPosted: Jan Tue 21, 2020 2:47 pm 
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I picked the 25 up yesterday. I got a pleasant surprise. The radio had a full set of tubes, with extras, set of batteries installed in 1937 and a picture of the original owner with his wife along with information about them, even their address.

I am ready to tackle this one. Will have the information plastic laminated to stay with the radio.

Ed

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 Post subject: Re: Radiola 25 advertised locally
PostPosted: Jan Tue 21, 2020 4:12 pm 
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Joined: Jan Thu 01, 1970 1:00 am
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Location: S. Dartmouth MA 02748-1225 USA
Quote:
Will have the information plastic laminated to stay with the radio.
NO!

Get some sheets of acid free paper and an acid free envelope. In time plastic will shrink and out gas and be impossible to scan in the future. Scan what you have and make a NEW booklet of it...

More

Download this manual and go to the PDF page 238

https://www.americanradiohistory.com/AR ... 3-1928.pdf

Print the 25 manual for bench reference.

https://www.americanradiohistory.com/Ar ... -Vol-1.pdf

See PDF page 251..

IMHO do this triage:

Determine that you do have a battery model 25 by checking the jumper strip mounted on the catacomb rear apron, this is not the terminal strip. The correct jumper strip will have insulated metal bands connecting across.

Look at the terminal strip, there should be a battery harness..

There may or not be a UV-877 safety lamp or could have been removed. This lamp can be removed and all the harness wires connected together. The lamp is used as a B+ safety fuse, it lights but once and blows out if the batteries are wrong.

Measure the catacomb as directed by RCA and take note of any circuit that is open. Any open circuit will require the catacomb be melted out of the spruce rosin.


Most catacomb faults are from the shrinkage of the rosin over many years.

https://www.antiqueradios.com/forums/vi ... 1&t=266985

https://ethw.org/w/images/9/90/Dubilier ... 5-1926.pdf

GL

Chas

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 Post subject: Re: Radiola 25 advertised locally
PostPosted: Jan Wed 22, 2020 1:29 am 
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K4YDO wrote:
Will have the information plastic laminated to stay with the radio.


That's a very destructive way to preserve something.

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 Post subject: Re: Radiola 25 advertised locally
PostPosted: Jan Wed 22, 2020 2:58 am 
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Gentlemen. Thank you for reminding me. I will preserve as mentioned. I have some old plastic laminations and the paper has almost dissolved.

I will look at the RCA info and test as recommended. I haven’t looked at the links yet, but hopefully one of your links leads to it. I have done quite a bit of research and have not run across it. This radio has the bulb/fuse.

The ARBE has a recommended hook up diagram and that is what I plan to follow. Yes, it has the battery harness and was fully hooked up when purchased.

Ed

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 Post subject: Re: Radiola 25 advertised locally
PostPosted: Jan Wed 22, 2020 5:31 am 
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Keep the bulb/fuse, there is always a remote chance of a hookup mistake to the ARBE. Set the ARBE for 4-1/2 volts A. The battery setting rheostat and the volume rheostat will control the filament voltage and a portion of the bias.

Chas

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 Post subject: Re: Radiola 25 advertised locally
PostPosted: Jan Thu 23, 2020 12:07 am 
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Thank you Chas and Michael. I have allowed this thread to drift from online to electrical repair. I guess I should go to the other heading and place future posts....after this post..

I found I have 3 open coils out of the 12. I have started into the can. I want to be sure not to break anything. At start, it doesn’t want to come apart. This is more complex than the Atwater Kent transformer and capacitor cans because this one has the tube sockets in the can with the coils.

I’m sure I will have questions in the appropriate forum. These 20’s radios provide quite a challenge.

Thanks,

Ed

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 Post subject: Re: Radiola 25 advertised locally
PostPosted: Jan Thu 23, 2020 1:35 am 
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Ed,

I have sent a PM with details of catacomb processing.

Chas

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 Post subject: Re: Radiola 25 advertised locally
PostPosted: Jan Thu 23, 2020 2:10 am 
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Location: Florence, SC 29506
I will check. Thank you so much.

Ed

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 Post subject: Re: Radiola 25 advertised locally
PostPosted: Jan Thu 23, 2020 2:45 am 
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Location: Carmel, Indiana
K4YDO wrote:
This is more complex than the Atwater Kent transformer and capacitor cans because this one has the tube sockets in the can with the coils.


RCA defiantly didn't design it to be easily serviceable, that's for sure.

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