[Boatanchors] Info on N-coefficient caps

k5vkl at juno.com k5vkl at juno.com
Mon Mar 28 16:33:22 EST 2005


Doug,

Do a Google search on "n750 capacitors"  (leaving off the quotation
marks), and you will get a list of 12 possible sources.   
Pick one or more selections and you'll get more information than you will
ever need.     (Number 5 on the websites listed gives a "bunch"
of the different schemes by which they show the value and appropriate
characteristics markings on their capacitors).
Selecting the source which most likely appears to fit 
your requirements will then be a process of elimination, (and of
getting all the data you can download which might be pertinent to
your requirements.  HI HI. 
It appears the people who "built 'em in my day" still build "em
nowadays"

Good Luck,

Bill,   K5VKL
****

On Mon, 28 Mar 2005 09:56:59 EST CEMILTON at aol.com writes:
> GM to the list.
>  
> I'm in the midst of putting the wraps on restoration of a GLOBE V-10 
>  VFO.  
> After cooking it in for several hours, new tubes and a few cap and  
> resistor 
> changes it was ready for re-alignment.
>  
> Since none of the components in the oscillator section were altered, 
> it was  
> time to see if the end points could be set and some degree of 
> linearity  
> established across the dial.  This was not to be!  After 
> considerable  time was 
> spent adjusting the inductors and variable caps for each set of 
> bands,  it was 
> apparent the full bandspread couldn't be obtained.  Otherwise, the  
> VFO had a 
> nice, clean and stable output.
>  
> I suspect some of the TC caps in the oscillator section are the  
> culprits.  
> After all, this thing is 40+years young.  Here's the  question:  
> Where does one 
> find N-coefficient caps these days?  In  particular, those rated at 
> N750 and 
> N330k...................  The remaining  caps are NPO and seem to be 
> readily 
> available via MOUSER or equivalent.   Are there new (modern) 
> N-coefficient caps 
> around that carry a different  designation than I'm accustomed to?
>  
> I can always align the thing to its best settings and just "zero 
> beat" but  I 
> really wanted the dial to track closely if possible. 
>  
> Anyone have thoughts, suggestions or ideas on where the N-types 
> could be  
> found?
>  
> I appreciate your assistance.
>  
> 73 de W4MIL
> Chuck
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