[Heathkit] DX-100 or Apache?

[Glen Zook]

There were several Heath approved modifications for the DX-100 for which modification kits were available.  Those DX-100 transmitters incorporating the MK-3 modification kit, changing the antenna loading circuit from switched fixed capacitors and a 150 pf variable capacitor to a continuously variable loading capacitor, were unofficially unknown as "DX-100A" transmitters.

Details on these kits, as well as other service information not commonly available (directly from Heath) can be found at the following URL:

http://k9sth.com/uploads/Heathkit_DX-100_mods-1.pdf

 
Glen, K9STH


Website:  http://k9sth.com


________________________________
 From: Gary <xfrmrs at roadrunner.com>
To: heathkit at mailman.qth.net 
Sent: Thursday, May 2, 2013 6:43 AM
Subject: Re: [Heathkit] DX-100 or Apache?
 

I also have both of these xmtrs and prefer the DX-100, why you say, Try to 
buy a pair of 6CA7's, verses the 1625's. 1625's are much less. With a few 
modes to the DX-100, including the addition of a variable cap to take the 
place of the coarse tune, I have a good running DX-100 that sounds good.
Regards,