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Hello Again From NE5DX.

Here Are A Few Examples of Of The

Results of the R-274/FRR Cleanup.

 

ARB Receiver

        After initial cleaning, a date stamp appears! It's owner is only 2 1/2 years older...

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ARC-5

         Partial cleanup with the tubes removed. Almost all, that is.

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Same area, different view, after final cleaning and tubes replaced. The large audio tube (6Y6) was bad, KA5HRF actually had a spare.

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         Here's the same area a bit later but with one addition.  Electricity!

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     Here's the tuner/turret area partially cleaned. It's getting a lot better, soon to look even better.

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Same area, assembled.

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    Here's step one in creating that missing bezel. Take a 3/8" thick piece of PVC sheet and cut to size and scribe the outline of the dial cutout.

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Caretully remove the scribed area.

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Sand and prepare surface for painting.

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Paint and add glass on the backside of the dial window.

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Mount bezel and admire handwork.

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But, before that last step, getting the paint somewhat restored is first. The results are so much better if time is taken and the front panel completely removed.

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Final result!! Of course there were many many steps and tasks omitted. The cleaning of the knobs alone was a job, not to mention a complete alignment of the R-274, which is very time consuming along with lubricating the entire mechanism. Just wrestling 58 lbs around is a job. Fortunately,  it is said that Hallicrafters pretty well used the best components available and NO paper capacitors.  So far, not a single component has been changed.  Spot checks of many resistors turned up normal/expected measurements. With the exceping of several iffy tubes, it's almost 100% as it was in 1952.

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Copyright  Don L. Spivey