[Milsurplus] RE: [ARC5] serious tube

[D C *Mac* Macdonald]

Fabulous, Mike!!!!

(;-p)


73 - Mac


----Original Message Follows----
From: mikea <mikea at mikea.ath.cx>
To: milsurplus at mailman.qth.net
Subject: Re: [Milsurplus] RE: [ARC5] serious tube
Date: Tue, 31 Oct 2006 08:50:48 -0600

On Tue, Oct 31, 2006 at 02:24:36PM +0000, D C *Mac* Macdonald wrote:

 > It's all based upon the theory of negative resistance.
 > When you design negative resistors into a special
 > circuit, you can develop a negative frequency
 > oscillator.  The output of this is fed to a transformer
 > with a third (tertiary) winding.  A transformer so
 > constructed is known as a step-aside transformer as
 > opposed to the normal step-up or step-down version.
 > This ouptut drives a a cathode-coupled current
 > crippler, which is the heart of the infra-red
 > destruction generator.

And that's how KL7F got his (in)famous dovetail-wave generator to
work.

Here's the output waveform:

---    ---------    --------    --------    --------    --------
   /    \       /    \      /    \      /    \      /    \      /
  /      \     /      \    /      \    /      \    /      \    /
  --------     --------    --------    --------    --------

--
Mike Andrews, W5EGO
mikea at mikea.ath.cx
Tired old sysadmin