[Boatanchors] Info on N-coefficient caps

[CEMILTON at aol.com]

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