[Elecraft] K3 Problem in Assembly, need advice

Twan at pa0kv.nl pa0kv at pa0kv.nl
Sat May 18 15:07:37 EDT 2013


Hi Brian,

this measure point is the output terminal of a 5V voltage regulator (U12 
MC7805ACT).
A value of 445 ohms is not alarming. A matter of tolerances in all parts 
connected to this point.
But I expect Elecraft will react too.

73s,   Twan - PA0KV


Message: 14
Date: Sat, 18 May 2013 10:32:20 -0400
From: "Brian F. Wruble"<bwruble at gmail.com>
To: Elecraft Reflector<elecraft at mailman.qth.net>
Subject: [Elecraft] K3 Problem in Assembly, need advice
Message-ID:
	<CA+8EV6oR9kWMZMMLvX=vRaULbOE8Q+WYqs0iNjC0TyMDeR8R=Q at mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1

I am assembling K3 s/n 7394.  I have come to the step on page 45, DMM
resistance measurements.  The resistance between a terminal on U12 and
ground measures 445 ohms.  It is supposed to be >500 ohms.  I am using an
accurate Fluke DMM.

What am I looking for?

73 de Brian W3BW




More information about the Elecraft mailing list