[GreenKeys] Loop Supply

John, W9DDD w9ddd at tapr.org
Fri Dec 14 18:49:53 EST 2018


Hey that's what I mean to say.  Please refer to previous statement about 
cobwebs!

Call the first sentence poorly worded and the second one just plain wrong.

John, W9DDD

On 12/14/2018 5:41 PM, Roy Morgan wrote:
> Isn’t that backwards?
> 60 Ma parallel
> 30 Ma series ?
> 
> Roy sends.
> 
> On Dec 14, 2018, at 3:33 PM, John, W9DDD <w9ddd at tapr.org 
> <mailto:w9ddd at tapr.org>> wrote:
> 
>> 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
>>>
>>>
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