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-   -   Sonora 302 restoration (http://www.videokarma.org/showthread.php?t=259803)

bandersen 10-18-2013 11:51 AM

Sonora 302 restoration
 
I wanted to squeeze in one last major refinishing job before the cold weather arrives. eenie meenie miney mo - this Sonora 302 is it.

Here's the thread from when I got it last year: http://www.videokarma.org/showthread.php?t=254990

http://farm9.staticflickr.com/8003/7...120f82c3_c.jpg http://farm9.staticflickr.com/8293/7...18e14b65_c.jpg

It's an interesting design that uses a variable capacitor for continuous tuning. Looks very easy to work on :yes:
http://farm8.staticflickr.com/7138/7...d918945a_c.jpg http://farm9.staticflickr.com/8292/7...8032ac51_c.jpg

Over the last year, thanks to some reference photos from Eric H and a lot of luck, I was able to track down a complete set of knobs including the continuous tuning channel plate!

http://farm8.staticflickr.com/7409/8...979d894c_c.jpg


This is easily the crappiest cabinet I've encountered. It's a basic plywood box with little bracing and mismatched veneer. As you can see, it's warped over the years especially on the side with the missing brace and the top.

http://farm4.staticflickr.com/3767/9...77bcd8a0_c.jpg http://farm8.staticflickr.com/7324/9...55d0a79e_c.jpg

The top is also stained and nasty looking.
http://farm8.staticflickr.com/7456/9...5ef228cc_c.jpg

I started by removing the brass trim, safety glass and metal bezel. Then moved on to reinforcing the cabinet.
http://farm4.staticflickr.com/3687/9...c794d716_c.jpg

I used a sturdy piece of oak across the top. That's better! I later had to cut out an arch otherwise the CRT wouldn't fit inside.
http://farm3.staticflickr.com/2878/9...0d685561_c.jpg


Here's the cabinet after stripping. I also used a little bleach on top to remove the worst of the staining.
As you can see, it's mahogany.
http://farm8.staticflickr.com/7406/9...95616550_c.jpg

As for this side, I'm not sure what it is exactly. Low grade mahogany ? Cherry ? It sure doesn't match the top or other side.
http://farm3.staticflickr.com/2871/9...31976bc6_c.jpg

All patched up, grain filled and ready for some color :)
http://farm6.staticflickr.com/5334/1...eaf3134e_c.jpg

bandersen 10-18-2013 12:04 PM

I sprayed it up in the attic using a coat of Mohawk "Red Cherry/Mahogany" follow by "Brown Mahogany".
I discovered the metal bell of a 16GP4 makes a great spraying stand :)

http://farm9.staticflickr.com/8262/1...c03d84f0_c.jpg

I though I'd be repainting the bezel but it cleaned up very well.
http://farm8.staticflickr.com/7362/1...225b3614_c.jpg

I spent a few hours polishing up the brass control panel then coated with lacquer.
http://farm4.staticflickr.com/3799/1...19868df4_c.jpg

http://farm6.staticflickr.com/5486/1...e1b3d120_c.jpg

And that's that! It turned out much better than I expected in the end.

I'll probably get around to the electronics over the winter. Right now, I have a Dumont RA113 calling.
http://farm8.staticflickr.com/7309/1...72ffb1fd_b.jpg

http://farm9.staticflickr.com/8418/1...a3edc429_b.jpg

decojoe67 10-18-2013 04:34 PM

I enjoyed your vid Bob and these pics too. That set really came out beautiful! You turned a set that you'd might not take notice of become a real jewel. You have to love the maroon and gold colors they used back then. Very rich combination.
Joe

Bill Cahill 10-18-2013 06:31 PM

Very fine job. That panel is very low grade mahoganny.
You did a great job on it....
Bill Cahill

baursam 10-18-2013 11:49 PM

Beautiful job Bob, as always.


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