[TowerTalk] Long UHF Bulkhead Connectors

[W1YW at aol.com]

I have experienced arcing (dielectric breakdown) on one of  
these--manufacturer unknown, but assumed PRC origin. This was after 1 year  in-line. About 
500 watts at the time.
 
I don't know how you avoid this 'trusted source' issue. Except to be  
willing and physically possible to replace.
 
The situation is even worse for ferrite from PRC, among other parts.
 
73,
Chip W1YW