Restoration of RCA Victor R-98 1939 table top victrola

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Restoration of RCA Victor R-98 1939 table top victrola

Post by Bill Cahill on Tue Sep 25, 2012 1:45 pm

Hi.
I've had this machine for more than 30 years.. At one time I had it playing, but, sound was weak. Then, other problems happenned, and, it got set asside for the last 24 years. I'm now finally back on it.
Started out by polishing the chassis, and, speaker.
I have repairs to do, and, case work to do.
Pictures are mixed, up. Sorry. But, I'll be doing this possibly in sections.
Well, here goes. Here are photos of it. Oh. By the way.
Tube line up follows: 1 5U4 Rect. 2 2A3 Audio Output. 2 6J5. ONe is inverter, other is pre amp.
It uses a driver transformer for ouput stage.






























Well, what do you guys think? It was sort of playing 24 years ago, but, after getting the correct schematic for it, I found out the electrolytics I had put in, all at 450 volts, were too low. I needed 500 volt instead..
I think several of the parts are chrome plated.
I believe apeaker frame is also chrome plated.
Magnet assembly isn't.
Bill Cahill

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Re: Restoration of RCA Victor R-98 1939 table top victrola

Post by Bill Cahill on Tue Sep 25, 2012 1:52 pm

Here are more pictures of it.































Well, what do you guys think? It was sort of playing 24 years ago, but, after getting the correct schematic for it, I found out the electrolytics I had put in, all at 450 volts, were too low. I needed 500 volt instead..
I think several of the parts are chrome plated.
I believe apeaker frame is also chrome plated.
Magnet assembly isn't.
Bill Cahill

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Re: Restoration of RCA Victor R-98 1939 table top victrola

Post by terrydec on Tue Sep 25, 2012 4:34 pm

Great job- really!
How do you get the parts so clean? I have one set, the chair side radio, that was pretty much that clean. All I had to do was use some steel wool on the tube shields.
Did the phono cartridge work or did you replace it?

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Re: Restoration of RCA Victor R-98 1939 table top victrola

Post by Bill Cahill on Tue Sep 25, 2012 4:43 pm

The original cartridge was still working. Don't know now.
Thanks. I couldn't get some spots, but, tried hard.
I used Brasso with paper towels.
Bill Cahill

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Re: Restoration of RCA Victor R-98 1939 table top victrola

Post by Guest on Tue Sep 25, 2012 5:44 pm

That really looks good!

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Re: Restoration of RCA Victor R-98 1939 table top victrola

Post by terrydec on Tue Sep 25, 2012 6:38 pm

I've heard that sometimes heating, or baking, the cartridge will rejuvenate the crystal. Have you ever heard that?

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Re: Restoration of RCA Victor R-98 1939 table top victrola

Post by Bill Cahill on Tue Sep 25, 2012 6:41 pm

No. Not true. Heat destroys crystal, and, I highly reccommend against it.
Bill Cahill

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Re: Restoration of RCA Victor R-98 1939 table top victrola

Post by willy3486 on Tue Sep 25, 2012 7:28 pm

Nice phono. I had a motorola radio given to me about 1984 that I just got going a few months back. It feels great to get one going you set aside or got stumped on so long ago. As far as the brasso goes I have a question on it. Back years ago when I was into the radios before people never thought to go to the effort as is done today, mainly refinish if needed and get the radio going. You never heard of stuff like taking out the old caps and putting in new ones in the old paper shell. Anyway I hear a lot on using brasso. I assume its mostly for the chassis. But for some reason I think I read or heard you could use it on bakelite. Is this true or did my ears hear wrong. I have heard a lot of good tricks I never knew years ago.

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Re: Restoration of RCA Victor R-98 1939 table top victrola

Post by Guest on Tue Sep 25, 2012 7:47 pm

I have used it on bakelite and clear acrylic plastics. Brasso is basically rottenstone, kerosene and ammonia.

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Re: Restoration of RCA Victor R-98 1939 table top victrola

Post by Bill Cahill on Tue Sep 25, 2012 9:07 pm

I have had excellent luck with brasso, even on plastics.
I've used it on a number of nasty looking vintage telephones in my collection.
Bill Cahill

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Re: Restoration of RCA Victor R-98 1939 table top victrola

Post by terrydec on Tue Sep 25, 2012 11:25 pm



This was green and pitted when I got it. A mess, but it worked. A few hours of fine grade sandpaper and steel wool and it sold for $125.

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Re: Restoration of RCA Victor R-98 1939 table top victrola

Post by Bill Cahill on Wed Sep 26, 2012 6:39 am

Here are some pictures I missed.................








Bill Cahill

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Re: Restoration of RCA Victor R-98 1939 table top victrola

Post by Bill Cahill on Fri Sep 28, 2012 8:10 pm

Had a mini nightmare, but, I replaced the electrolytics tonight.
Had to redesign the set up.
I'll get more pics as soon as possible.
At least that nightmare is finnished.
Bill Cahill

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Re: Restoration of RCA Victor R-98 1939 table top victrola

Post by terrydec on Fri Sep 28, 2012 11:14 pm

I hope you're gonna be able to post a video of it working.

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Re: Restoration of RCA Victor R-98 1939 table top victrola

Post by Bill Cahill on Sat Sep 29, 2012 8:57 am

I'll try, but, I've been having speed issues with both you tube, and, Photo bucket. Both, on a 5 min. video upload wanted to take up to five hours to upload. And, they were living to it.
Twice, I tried on both sites, and, after 45 min. trying to upload, they both were 1 percent done.
Something's definately wrong there.

Bill Cahill

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