[ARC5] Ceramic Versus Phenolic

[Bruce Long]

I actually know nothing about WW2 ARC receiver production however I think I know the American Defense industry in WW2 was tightly rationalized and I would suspect ceramic tube sockets where too expensive and labor intensive to allow their use in equipment unless strictly required.
Post war VHF equipment would have fewer production bottle neck problems and ceramic I supose would be noticably less lossy at VHF even without considering the hydrophillic tendencies of phenolic.

 

      From: Phillip Carpenter <carpenterpa at tds.net>
 To: "gewhite at crosslink.net" <gewhite at crosslink.net> 
Cc: "arc5 at mailman.qth.net" <arc5 at mailman.qth.net>; Robert Eleazer <releazer at earthlink.net>
 Sent: Monday, January 11, 2016 8:03 PM
 Subject: Re: [ARC5] Ceramic Versus Phenolic
   
All of my ARC Type 12 receivers (post WWII) have ceramic sockets. All my ARC-5 receivers have phenolic sockets.
They must have not been too worried about moisture absorption at high altitudes during WWII.
Phillip

Sent from my iPhone
On Jan 11, 2016, at 7:39 PM, gordon white <gewhite at crosslink.net> wrote:


 
A.R.C. used ceramic sockets in the later equipment, most of which was vhf
 
  - Gordon White
  
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