[NJARC] Philco 37-650 RF Question

[antqradio at juno.com]

Are carbon composition resistors really superior to metal or carbon film
resistors?
If this is indeed true, then why are carbon composition resistors so hard
to find and (when found) so expensive?
Why would the vast majority of resistor manufacturers replace a proven
material with one that is not up to the task?
Curious in Arkansas,
Jim

On Thu, 23 Feb 2006 18:33:16 -0500 Robert Bennett <dino66 at optonline.net>
writes:
> Visit our web site - See http://www.njarc.org
> _______________________________________________
>  Scott -
>                 I had a similar problem with a restoration of a 40's 
> Zenith
> console. I couldn't get the BC band to work under 1000KC. What I 
> learned was
> that I had replaced some "out of tolerance" resistors in the RF 
> section that
> were "carbon film" instead of carbon composition (like the 
> originals). A
> fellow enthusiast informed me that the "carbon film" or "metal 
> film"
> resistors will not pass current as well. I replaced the resistors 
> again and
> Voila! I had the whole BC band again! Since then, I only use carbon
> composition resistors in the RF and IF sections. Hope you find it!
> 
> Bob Bennett