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 Post subject: Another RCA Victor Special Model Restoration
PostPosted: Mar Mon 11, 2019 1:56 pm 
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Joined: Jan Sun 06, 2008 3:28 am
Posts: 4265
Location: Richmond, VA
Another RCA Victor Special Model M restoration. This is my sixth restoration of one of these. None are mine, sadly. These machines, designed by industrial designer John Vassos, were produced in 1938-1939 for the 1939 World’s Fair. The motor is hand cranked and the amp is battery powered.

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The amp is powered from a 1.5v/90v AB Battery. There is one electrolytic cap and four wax/paper caps to replace. I stuff the new caps inside the old caps. The bias battery is replaced with a 1M resistor. I replaced three other out of tolerance resistors. All the tubes were good. The tube line-up is 1G6, 1A5, and a 1H5.

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The Astatic crystal cartridge was dead, of course. I sent it to Gib Epling at West-Tech Services for rebuilding.

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The motor in this machine was in very good condition. The only service required was to wipe off some old grease and lubricate the pivot points in the mechanism.

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I made a new battery and connector. The battery uses ten 9-volt cells in series for the B supply and two D cells in parallel for the A supply.

Here's a link to a short You Tube video:

https://youtu.be/Q7qBmzevmjE

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 Post subject: Re: Another RCA Victor Special Model Restoration
PostPosted: Mar Tue 12, 2019 7:33 am 
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Joined: Apr Wed 09, 2008 3:37 am
Posts: 14335
Location: Little Rock, Arkansas
Ed you must be the restoration expert on these then. They are beautiful sets, but it would take a good chunk of gold from Fort Knox to own one.


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 Post subject: Re: Another RCA Victor Special Model Restoration
PostPosted: Mar Tue 12, 2019 12:55 pm 
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Joined: Jan Sun 06, 2008 3:28 am
Posts: 4265
Location: Richmond, VA
Thanks, Larry. The owner of the machine shown here paid three big ones for it on eBay. I’ll never own one.

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 Post subject: Re: Another RCA Victor Special Model Restoration
PostPosted: Mar Thu 14, 2019 9:17 pm 
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Joined: Feb Tue 10, 2009 3:16 pm
Posts: 777
Location: zipcode 46235
Where'd you get the battery cover? :-)


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 Post subject: Re: Another RCA Victor Special Model Restoration
PostPosted: Mar Fri 15, 2019 1:54 am 
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Joined: Jan Sun 06, 2008 3:28 am
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Location: Richmond, VA
I make them. One of my earlier RCA Victor Special Model M customers had scans that I have modified to fit my boxes.

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