[Collins] re: newbie question

Carl km1h at jeremy.mv.com
Mon Jun 16 20:10:02 EDT 2008


----- Original Message ----- 
From: <kim.herron at sbcglobal.net>
To: <geraldj at storm.weather.net>; <collins at mailman.qth.net>
Sent: Monday, June 16, 2008 6:43 PM
Subject: Re: [Collins] re: newbie question


>I guess that the reference to "dogbone" is not what I'm thinking of. What 
>you're describing is indeed a ceramic cap and I've found them bad too. 
>What I'm thinking of are the old longer, larger black or brown caps 
>(rectangular shape) that look very much like a mica cap but when you 
>dissect the thing, it's a paper cap.  The ones that I'm specifically 
>thinking of were made by Micamold.


I dont recollect seeing those Micamolds in factory built ham gear but Ive 
run across a lot of them in 30's house radios and old homebrew "junque". 
Leaky like any old paper cap of course.

Carl
KM1H



> ----- Original Message ----- 
> From: "Dr. Gerald N. Johnson" <geraldj at storm.weather.net>
> To: <collins at mailman.qth.net>
> Sent: Monday, June 16, 2008 2:08 PM
> Subject: Re: [Collins] re: newbie question
>
>
>> On Mon, 2008-06-16 at 13:50 -0400, Carl wrote:
>>> ----- Original Message ----- 
>>> From: "ROLYNN PRECHTL K7DFW" <k7dfw at clatskanie.com>
>>> To: <collins at mailman.qth.net>
>>> Sent: Monday, June 16, 2008 12:34 PM
>>> Subject: Re: [Collins] re: newbie question
>>>
>>>
>>> >
>>> > ----- Original Message -----
>>> > Dogbone caps are nothing more than paper caps in a different wrapper.
>>> > =================================================
>>> >
>>> > "Dog bones" are ceramic caps.
>>> >
>>> >
>>> > K7DFW
>>>
>>> Absolutely correct and they come in solid form or hollow. Neither is 
>>> immune
>>> to problems.
>>>
>>> Carl
>>> KM1H
>>>
>>>
>> The hollow ones are often temperature compensating and that compensating
>> characteristic is important in their replacement and they are not common
>> distributor items these days.
>>
>> -- 
>> 73, Jerry, K0CQ, Technical Advisor to the CRA
>> All content copyright Dr. Gerald N. Johnson, electrical engineer
>>
>> ______________________________________________________________
>> Collins mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/collins
>> Help: http://mailman.qth.net/mmfaq.html
>> Post: mailto:Collins at mailman.qth.net
>>
>
> ______________________________________________________________
> Collins mailing list
> Home: http://mailman.qth.net/mailman/listinfo/collins
> Help: http://mailman.qth.net/mmfaq.html
> Post: mailto:Collins at mailman.qth.net
>
> 



More information about the Collins mailing list