[Lowfer] Coil & Variometer setup???

[Dave Brown]

It's not a Johnson unit by any chance? I had a number of them here 
(complete with dog box) I acquired surplus some years ago but all have 
found good homes in the amateur LF community. They had a tuning 
variometer around a third of the way up the coil and there was a 
separate coupling variometer that it sat on-latter only had a few 
turns on the fixed and rotary coils. The main coil was around 800-900 
microhenries and made of flat copper strip - the coil was around 10 
inches diameter.
Dave, ZL3FJ

----- Original Message ----- 
From: "Mike WE0H" <we0h at yahoo.com>
To: "Discussion of the Lowfer (US, European, &amp; UK) and MedFer 
bands" <lowfer at mailman.qth.net>
Sent: Sunday, May 25, 2008 5:09 PM
Subject: Re: [Lowfer] Coil & Variometer setup???


> Hi Dave,
>
> I wired it at the division point and got 715uh to 940uh. Nice smooth
> linear range. My antenna calls for 802uh so this range should be 
> good.
>
> tnx,
> Mike
> WE0H
>
>
> Dave Brown wrote:
>> Both will work but you will probably get more adjustment range with 
>> it
>> at the 'division' point.
>> Dave, ZL3FJ
> _______________________________________________
>>From the Lowfer mailing list
> Send messages to: Lowfer at mailman.qth.net
> To sub/unsub visit: http://mailman.qth.net/mailman/listinfo/lowfer


--------------------------------------------------------------------------------



No virus found in this incoming message.
Checked by AVG.
Version: 8.0.100 / Virus Database: 269.24.1/1464 - Release Date: 
24/05/2008 08:56