[TenTec] Heil ProSet adapter with Orion -- hum

[Duane A Calvin]

Yep - the problem with the diagram in the Orion manual is that it assumes
there will be a mic + and - connection separate from the shield.  In the
Heil setup, and in most similar ham wiring I've seen, the mic cable is a
signal and a shield.  That can't be wired as Figure 2-5 shows.  By the
way, has anyone noticed that their little drawing reverses pins 1 and 2
between the two connections?  :-)  

        73,  Duane


On Wed, 23 Jun 2004 22:58:48 EDT Kc9cdt at aol.com writes:
> Duane,
> My guess is that when you connect the shield to chasis, you are also 
> 
> connecting the internal circuit board to chassis ground also. Maybe 
> that causes some 
> kind of ground loop? The circuit in the Orion mnual calls for the 
> shield to be 
> connected to chassis ONLY.
> Lee
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> 


--------------------------------------
Duane Calvin, AC5AA
Austin, Texas

http://home.austin.rr.com/ac5aa