[NSRCA-discussion] Servo Signals

[Atwood, Mark]

The old heathkit servos (mine anyway) were kit versions of the Kraft K-15 servos. 

In fact the whole radio I believe was a Kraft design. 
-Mark 
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----- Original Message -----
From: nsrca-discussion-bounces at lists.nsrca.org <nsrca-discussion-bounces at lists.nsrca.org>
To: General pattern discussion <nsrca-discussion at lists.nsrca.org>
Sent: Mon Jun 22 13:06:18 2009
Subject: Re: [NSRCA-discussion] Servo Signals


Yes, as long as they are clean. That is the problem, it depends on contact between two components and the friction wears them out.
 
I remember years ago that the large heathkit (and possibly some Kraft) servos used variable capacitors for feedback. not much to wear.
 
Ok, Jay, how long ago were the "days" you were talking about? :-)  
 
Bob R.


--- On Sun, 6/21/09, Jay Marshall <lightfoot at sc.rr.com> wrote:



I remember from my days in control systems theory that the analog computers were faster and more accurate than the IBM big iron computers. Analog pots are still cheaper, lighter, and higher resolution than digital encoders – as long as they are clean…


 

 

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