[Elecraft] K3 Power Reading/SWR/ALC Problem

[Wes Stewart]

I bought a couple of these (TT3G50) from DX Engineering.  Unscrewed the gas 
discharge plug, took a look and some photos of the inside construction, and sent 
them back.  Simply awful, (Alpha-Delta, not DX Engineering)   BTW, the only 
"protection" is a 1000V breakdown gas discharge tube with questionable contact 
to the coax center conductor.

Wes  N7WS

On 1/21/2018 5:12 PM, Paul Christensen wrote:
> [snip]
High power Alpha-Delta arc-plug devices are located at the master ground bus 
where all coaxial and control lines enter the station. Low power (200W) 
Alpha-Delta devices are installed between the K3 and amplifiers. The Alpha-Delta 
devices use field-replaceable arc-plugs. Like Polyphaser, these devices are 
intended to mitigate lightning-induced charge, not necessarily antenna static 
charge. Still, it's possible that one or more of the Alpha-Delta arc plugs has 
failed, leaving the K3 vulnerable to static damage.