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Re: [Amps] DX-100B CW Keying

To: David Gow <>
Subject: Re: [Amps] DX-100B CW Keying
From: Rob Atkinson <>
Date: Mon, 3 Jan 2022 12:54:29 -0600
List-post: <>
Thanks Dave.  The ham with the question should now be able to
determine his 100B keying method.


On Mon, Jan 3, 2022 at 11:43 AM David Gow <> wrote:
> Bothethe DX-100 and the DX-100B came from Heathkit with cathode keying.  
> Heathkit did release a kit to change to grid block keying and it was 
> available (same kit) for both transmitters.  In the instructions Heathkit 
> states "...this strictly optional..."  It involves drilling a hole in the 
> front panel to install a push button switch and installing a terminal strip 
> on the chassis.  if there is no push button on the upper right side of the 
> panel then the grid block optional modification is not installed.  A copy of 
> the Heathkit instructions for the modification  is on Glenn Zook's (K9STH) 
> web site.The Antique Radios forum is a wonderful resource. This modification 
> has not been discussed there yet.
> Dave W7VM
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