[ARC5] "Q"-meter uses.

Kenneth G. Gordon kgordon2006 at frontier.com
Mon Mar 7 13:20:13 EST 2011


On 7 Mar 2011 at 9:16, Bob Macklin wrote:

> Ken,
> 
> I use the Heath QM-1 to make RF coils rather than using one of the
> GDOs. It's really a little easier to use for this.

Ah! Super!

> It's big and stable on the bench. You don't have critical positioning.
> 
> The GDO woks just fine when checking a L/C in a unit. Some also work
> as a wave meter.

I have several GDOs: 2 AN/PRM-10s, a Millen (complete with LF and VLF 
coils), and a couple of others. 

> You need to try playing with it. You probably won't use it often but
> if you are a scratch builder it can come in handy.

I can sure see that! :-)

> An example is cutting a Mini-Ductor to length. You can connect one end
> of a Mini-Ductor to one binding post and use a mini-clip for the other
> end. Connect to the Mini-Ductor until you find the other point for the
> inductance you need.

Neato! 

> But this is not easy with the 32TPI Mini-Ductors so I don't use them!

Yes. I can certainly see that. Too fine. Besides, NEW miniductors are 
WAAAAAY too expensive for me. I make my own although it is somewhat 
difficult to get the turns perfectly even.

Ken W7EKB


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