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 Post subject: National NC 183D Refurb Job Finished
PostPosted: Nov Thu 16, 2017 9:34 am 

Joined: Jul Thu 29, 2010 5:35 am
Posts: 984
Location: Simonton, Texas
183 Front Before Refinishing.jpg
183 Front Before Refinishing.jpg [ 56.13 KiB | Viewed 547 times ]
I purchased this a couple of years ago at the Brazos Valley Ham Fest. It had been partially recapped but the sheet metal
was in poor condition and the CWO control was wobbly and it had no bottom cover so I decided to do my first metal refinish job. I found a suitable color paint at the auto parts store called Cast Coat Iron (Dupli.Color DE1651) which matched the original color closely. I removed the radio from the case and went to work. I sanded down the sheet metal and sprayed it down with primer. I then wet sanded the primed metal with 600 grit sand paper. Following the direction on the can I sprayed the unit using 2 light coats and then followed up with one heavier wet coat. While I let the main part dry a couple of days I wet sanded the top and rear panels and sprayed them with clear over the Cast Iron color paint. I then attempted to fill the indented nomenclature with white paint letting it dry a while and then wiping off the excess. This did not provide good results so I sanded the front down again and repainted it. I tried filling the lettering in with a lack stick and that did not work for me either. So I painted the front again. This time I used my P-Touch labeler and labeled everthing with white on clear labels. (Success) I then sanded it with 500 grit and shot it with clear using the same directions on the can. (Pictures Below) The CWO shaft was wobbly because the ceramic plate supporting the variable cap was broken soI found a piece of fiber glass circuit board material about the same thickness and manufactured a new support for the capacitor. (Pictures below) I replaced a few caps and out of spec resistors in the audio output section and I then performed an alignment using a downloaded manual. For the bottom I used a piece of aluminum from the scrap pile which I painted the same color as the rest of the unit. I reassembled it tonight and I am happy whit the results.[*]

CWO Variable Cap Broken Ceramic Mount.jpg
CWO Variable Cap Broken Ceramic Mount.jpg [ 39.95 KiB | Viewed 547 times ]
CWO Variable Cap Repair.jpg
CWO Variable Cap Repair.jpg [ 45.86 KiB | Viewed 547 times ]
After Front And Top 2.jpg
After Front And Top 2.jpg [ 60.46 KiB | Viewed 547 times ]

Knowledge is useless unless you can share it. KA5OBI
 Post subject: Re: National NC 183D Refurb Job Finished
PostPosted: Nov Thu 16, 2017 11:57 am 
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Joined: Oct Sun 15, 2006 12:57 pm
Posts: 5823
Location: Liberty, Missorui
Looks great, nice work!!

The 183 is a very nice looking receiver and they perform well.

Pics, Bold & underlined text, are usually links.


 Post subject: Re: National NC 183D Refurb Job Finished
PostPosted: Nov Thu 16, 2017 12:20 pm 

Joined: May Thu 04, 2017 1:08 pm
Posts: 187
Location: Raleigh, NC area
Nice job. Lot of work on the paint! Now it's going to want to be on TOP of that boat anchor wall behind it!

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