[Elecraft] K4 Power Supply Recommendation

[Hank]

Assuming the K4 likes a little extras voltage like the K3S (14.2VDC for mine), I have been running an Astron RM-50 linear for 10 years or so and would recommend it or the 35 amp version.  I modified the voltage sense circuit to follow the voltage at the rear of the K3s to help with voltage drop around a power gate.  The only time it has been off was for the modification and if the AC power fails.

It powers all of my station accessories with a little room to spare.

The power werx switching supply is also on the bench - bought it before my K3s for VHF/UHF radios.  It has been repaired once for the choke on the input power lead - it failed and made terrible broadband noise.  It is 6 years old.  It has a little higher ripple than the Astron - always has.  Probably not a big deal though.

My $0.02.

Hank
K4HYJ


----- Original Message -----
From: John Shingara (lurch104 at gmail.com)
Date: 10/05/20 10:09
To: Elecraft at mailman.qth.net
Subject: [Elecraft] K4 Power Supply Recommendation

Hello everyone!

Like most here I am waiting for my K4.  Currently I am running the Power Werx SS30DV from the Elecraft site for my KX3 and Kxpa100.  I was planning on buying another for the K4 but thought I would ask opinions first.  I am assembling my first real HF station and going the cry once route.  I would rather pay a bit more up front and get something solid rather than saving a few bucks now only to upgrade later.  

Given what I intend to spend on the K4, I don’t want to skimp on its PS if spending a bit more will improve performance.  My budget is let’s say $500 and my question is would buying a bigger switching or linear PS for the K4 make sense?  My KX3 PS has caused me no issues and if that is the way to go I am groovy.  

Since my father has passed and I inherited his call sign my wife is being very gracious in allowing me to splurge on this hobby that I have only recently taken back up in remembrance of my SK father.  Help me spend some money while the wallet is open.

My antennas are a Butternut HV 9v vertical, and 3 alpha delta 1/2 wave wire dipoles  80, 40, and 20 meters.  

Thanks!
John
WB3EYB

Sent from my iPad


Sent from my iPad
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