[GreenKeys] Loop Supply

John, W9DDD w9ddd at tapr.org
Fri Dec 14 15:33:39 EST 2018


I'm foggy about the specifics of the 15 (about 57 years of cobwebs), but 
you show in your drawing what appears to be magnets wired in series 
instead of parallel, which would be normal for 60ma.  You can go 30ma 
with parallel connection, normal was 20.

John, W9DDD

On 12/14/2018 2:18 PM, Xavier Andrieu via GreenKeys wrote:
>
> The capacitance of the output cap is 100 microfarad and there is a 
> bridge rectifier.
>
> Xavier
>
> *De :*greenkeys-bounces at mailman.qth.net 
> [mailto:greenkeys-bounces at mailman.qth.net] *De la part de* JC White
> *Envoyé :* vendredi 14 décembre 2018 21:07
> *À :* GreenKeys at mailman.qth.net
> *Objet :* Re: [GreenKeys] Loop Supply
>
> Just a quick question and suggestion:  What is the capacitance of the 
> output electrolytic cap in you 120 volt supply?  Since adding a cap 
> gives you greater range I would guess you are not getting the current 
> and voltage you think at the selector mags... obviously additional 
> capacitance provides a bit more oomph (very technical engineering 
> term)...  your schematic shows no details of how the 120 vdc is 
> derived so ???
>
> John
>
> WB6BLV
>
>
> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient> 
> 	Garanti sans virus. www.avast.com 
> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient> 
>
>
> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
>
>
> ______________________________________________________________
> GreenKeys mailing list
> Home: http://mailman.qth.net/mailman/listinfo/greenkeys
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:GreenKeys at mailman.qth.net
>
> 2002-to-present greenkeys archive: http://mailman.qth.net/pipermail/greenkeys/
> 1998-to-2001 greenkeys archive: http://mailman.qth.net/archive/greenkeys/greenkeys.html
> Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://comcents.com/tty/greenkeyssearch.html
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/greenkeys/attachments/20181214/c96dc6c2/attachment.html>


More information about the GreenKeys mailing list