[ARC5] "Q"-meter uses.

[Bob Macklin]

I have been buying Mini-Ductors from Surplus Sales of Nebraska.

Bob Macklin
K5MYJ
Seattle, Wa.
"Real Radios Glow In The Dark"
----- Original Message ----- 
From: "Kenneth G. Gordon" <kgordon2006 at frontier.com>
To: "Bob Macklin" <macklinbob at msn.com>
Cc: <Arc5 at mailman.qth.net>
Sent: Monday, March 07, 2011 10:20 AM
Subject: Re: [ARC5] "Q"-meter uses.


> 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
>