[Boatanchors] Repair Advice

[Joe Connor]

Aren't there several different kinds of Micamold capacitors?

The black lozenge-shaped ones in the BC-348s seem to always be shorted or very leaky. On the other hand, I encountered square brown Micamolds in a Hallicrafters R-45 and they were all good.


                       Joe Connor





>________________________________
> From: David C. Hallam <dhallam at knology.net>
>To: boatanchors at mailman.qth.net 
>Sent: Tuesday, January 8, 2013 12:52 PM
>Subject: Re: [Boatanchors] Repair Advice
> 
>Paper "Micamold" capacitors were probably phased out shortly after WW2.  "Micamold" used the old 6 dot AWS/JAN color code for identification.  The first dot, i.e., upper left, identified paper or mica; black dot for mica and silver dot for paper.
>
>David
>KW3DH
>
>On 1/8/2013 12:35 PM, Charles Ring wrote:
>> 
>> On 1/8/2013 0157, Drew P. wrote:
>>> You mentioned "Micamold" capacitors.  Are these real "Micamold" or are they just mica?  Mica capacitors are fairly reliable but are found occasionally to be bad. "Micamold" capacitors are in actuality nothing more than paper capacitors in a molded case which looks like a mica capacitor. "Micamold" capacitors are notoriously unreliable and should be shotgunned on sight.
>>> 
>>> Drew
>>> 
>>> 
>> 
>> Micamold seems to be a brand name, and i see many different kinds of capacitors on the web with that name. Quite confusing. Some obviously not mica but the others had me fooled.
>> 
>
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