[Elecraft] KPA1500 LOW GAIN FAULT

[Bill Johnson]

Great advice.

73,
Bill
K9YEQ

https://wrj-tech.com/

-----Original Message-----
From: elecraft-bounces at mailman.qth.net <elecraft-bounces at mailman.qth.net> On Behalf Of Ron Durie
Sent: Wednesday, May 1, 2019 11:08 AM
To: Elecraft at mailman.qth.net
Subject: [Elecraft] KPA1500 LOW GAIN FAULT

Tightening inside PL259's with pliers is not desirable, because each Hams definition of "SNUG" occurs at different Torque levels.  
I want to use my hands to screw them on and off.    

Also, when you have SO239 chassis mounted "Round" connectors (using one large lock washer), then pliers will loosen them every time.  

What I do is, treat each connector center pin and threads with Caig DeOxit.
I do this on all connectors.  
Now I can put them on and off by hand and there is no Oxidation causing High Impedance RF connections.  

I do the same on my outside connectors BUT I do also apply 2 inch lbs. of torque.  
This keeps them from working loose with vibration and prevents oxidation.  

Ron Durie
WB4OOA
Elecraft K-Line
704-843-3681




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