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Date: Fri, 04 Jan 2002 10:21:40 +0000
To: rsgb_lf_group@blacksheep.org
From: "Simon Lloyd-Hughes" <simon.lloyd-hughes@rd.bbc.co.uk>
Subject: Re: LF: Request to any (relative) OTs out there !
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Andy,

If you have the Technical Topics compendiums a number of circuits appear in
them.  There was also an article in Elektor 


At 09:22 04/01/02 -0000, you wrote:
>A request for anyone out there who was receiving RadCom or any other
>magazine,  before I joined in 1975......
>
>I'm looking for the reference to the Huff-Puff stabilisation scheme, and in
>particular the improved Mark 2 modified version that, seem to recall,
>employed a counter rather than a simple flip-flop.  It almost certainly
>appeared in Radio Communication in the 1970s, and from what I remember of
>talk in my local radio club in those days, was probably around 1973 - 74.  
>
>Have a feeling I'm in the process of 're-inventing' it for a high stability
>GPS locked source for low data rate signalling, and don't want to claim the
>credit for an idea that appeared over a quarter of a centuary ago!
>
>With a PIC instead of all the control logic, it should certainly be a lot
>easier and simpler than the original concept!
>
>Andy G4JNT
>
>
>-- 
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