[Hallicrafters] Knifing a VFO Cap |
Dale Parfitt
parinc1 at frontier.com
Tue Feb 14 21:49:20 EST 2012
THanks Carl,
While I agree, Hallicrafters does mention this in their manual. Tracking is
quite good as is; thought it would be nice to learn the procedure though./
Dale W4OP
----- Original Message -----
From: "Carl" <km1h at jeremy.mv.com>
To: "Dale Parfitt" <parinc1 at frontier.com>; <Hallicrafters at mailman.qth.net>
Sent: Tuesday, February 14, 2012 8:36 PM
Subject: Re: [Hallicrafters] Knifing a VFO Cap
> Unless some butcher has been into the set it should not need it.
> The only radio Ive been doing it to in decades is the HRO-500 as they have
> a special end plate that you can fine adjust the readout linearity.
>
> OTOH trying to do it to a BC style variable as used in Hallis with
> different LO frequencies for every band can become a real nightmare.
>
> Some capacitors have an adjustable end nut that can fine tune the plate
> spacing which can shift over time. Ive had to do that with older
> Hammarlunds before they went with BC style caps, and the Nationals with
> their own custom built caps.
>
> Carl
> KM1H
>
>
>
> ----- Original Message -----
> From: "Dale Parfitt" <parinc1 at frontier.com>
> To: <Hallicrafters at mailman.qth.net>
> Sent: Tuesday, February 14, 2012 5:53 PM
> Subject: [Hallicrafters] Knifing a VFO Cap
>
>
>>
>> Does anyone know of an article dealing with variable capacitor knifing?
>>
>> Tnx,
>> Dale W4OP
>> ______________________________________________________________
>> Hallicrafters mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/hallicrafters
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:Hallicrafters at mailman.qth.net
>>
>> List Administrator: Duane Fischer, W8DBF
>> ** For Assistance: dfischer at usol.com **
>>
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>>
>>
>> -----
>> No virus found in this message.
>> Checked by AVG - www.avg.com
>> Version: 10.0.1424 / Virus Database: 2112/4809 - Release Date: 02/14/12
>>
>
>
>
> -----
> No virus found in this message.
> Checked by AVG - www.avg.com
> Version: 2012.0.1913 / Virus Database: 2112/4809 - Release Date: 02/14/12
>
More information about the Hallicrafters
mailing list
This page last updated 18 Mar 2024.