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 Post subject: Crosley noisy tuning capacitor
PostPosted: Mar Tue 26, 2013 6:38 pm 
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Location: Toquerville Utah
I am restoring a Crosley 02CP. After replacing caps and some tubes and wiring, the radio works like a charm except the tuning capacitor is very noisy. When tuning to stations I get a lot of sparking and some dead spots. I have cleaned it with WD 40 and wiped it as clean as possible with pipe cleaners and then sprayed it with contact cleaner. The noise is the same. What can I do next to reduce the noise?

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 Post subject: Re: Crosley noisy tuning capacitor
PostPosted: Mar Tue 26, 2013 10:20 pm 
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Joined: May Sat 06, 2006 4:03 am
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Location: South of Richmond, VA 25 miles down the pike.
One thing to check is the mounting rubber/gromets. Sparking when tunning, stop on station, no movement, works like a charm. This assumes plates aren't touching. No more WD-40. Use matchbook thickness chip board between plates, see if you still get residue.
Bill J.


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 Post subject: Re: Crosley noisy tuning capacitor
PostPosted: Mar Wed 27, 2013 12:44 am 
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Location: Toquerville Utah
I did get rid of all the noise except on the very low end by useing a high pressure air gun. :D

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 Post subject: Re: Crosley noisy tuning capacitor
PostPosted: Mar Thu 28, 2013 8:15 am 
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Joined: Dec Mon 20, 2010 5:14 pm
Posts: 337
Location: Central Pennsylvania
Did you specifically clean the capacitor wiping contacts? It might also be a good idea to clean out the old grease from the end bearings relubing with light oil or a very small amount of grease

where does the sparking you mentioned come from? There should
not be
sparking.


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 Post subject: Re: Crosley noisy tuning capacitor
PostPosted: Mar Thu 28, 2013 4:31 pm 
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Joined: Jun Sun 08, 2008 11:18 pm
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Location: Toquerville Utah
It is not sparking just sparking noise from the speaker. Now it's just from the low end where the tuner is all mashed together. I think the tuner had dust or small particals in it.

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 Post subject: Re: Crosley noisy tuning capacitor
PostPosted: Mar Thu 28, 2013 7:02 pm 
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Joined: Feb Mon 25, 2013 3:39 am
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Location: Truth or Consequences, NM
rgadams wrote:
tuner is all mashed together

Any way to disassemble this and straighten them??


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 Post subject: Re: Crosley noisy tuning capacitor
PostPosted: Mar Thu 28, 2013 9:05 pm 
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Joined: Oct Fri 21, 2011 11:11 pm
Posts: 1484
lostcauses10x wrote:
rgadams wrote:
tuner is all mashed together

Any way to disassemble this and straighten them??


I think he meant "meshed" together

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 Post subject: Re: Crosley noisy tuning capacitor
PostPosted: Mar Sat 30, 2013 3:53 am 
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Location: Phoenix, AZ
with a high power magnifying glass check that the plates are not touching. I have had to straighten tuners with plates that were just barely touching and the noise went away.

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 Post subject: Re: Crosley noisy tuning capacitor
PostPosted: Mar Sat 30, 2013 4:22 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 2772
Location: Northport wa. USA.
I think it has whiskers growing. Seem more common on sets from around WW-II era. You could disconnect all leads and use high voltage to burn off. Note the shock hazard and take precautions.


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