[QuadList] Weekend Mystery Pic for 3/12/11

[Chill315 at aol.com]

This is a hard one.
 
I see in the picture of the Bosch Ferenseh quad that was distributed  
earlier, knobs that look like this.  RCA did not use anything like this  prior to 
the TR-600.  
 
I also thought it might be the test button on the optional vector scope  
installed in the bridge for monitoring.
 
Other than that, no clue as to what function it did.
 
Chris Hill
WA8IGN
 
 
In a message dated 3/12/2011 11:41:13 A.M. Eastern Standard Time,  
dwnorwood at embarqmail.com writes:

For this weekend's challenge, identify the function of this control and  
what  machine it is on.  As far as I know, it is the only control of  this 
design on any quad machine.
 

 
Don Norwood
Digitrak Communications, Inc.
_www.digitrakcom.com_ (http://www.digitrakcom.com/) 


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