[Boatanchors] What is this?

[BSugarberg]

Hi Steve,

It's a Beat-Frequency Audio Oscillator 20 - 15000 Cycles.

http://cloughbrengle.homestead.com/CBOB.html

73, Bruce WA8TNC
============================
StephenTetorka at cs.com wrote:

> Hi all:
> 
> Might someone kindly tell me what a " Clough Brengle model OB " is?
> 
> Tnx,
> Steve
> WA2TAK