[minima] Re: Toroid size?
- From: Jeremy Chase <jeremychase@xxxxxxxxx>
- To: minima@xxxxxxxxxxxxx
- Date: Sun, 16 Mar 2014 09:42:28 -0400
What gauge wire did you use? Was it the same?
On Mar 16, 2014 12:50 AM, "Thomas Sarlandie" <thomas@xxxxxxxxxxxxx> wrote:
> Mike,
>
> This is what I used, based on Mark first build. You will also need 4
> ft37-43 (3 transformers + rfc).
> ValueQtyCoreN-Turns (Mark)N-Turns (Thomas).33 uH2 T37-6109.39 uH2T37-6 11
> 10.66 uH2T50-212 10.78 uH3T50-21311 3 uH3T332524
> 73,
> thomas
>
> On Fri, Mar 14, 2014 at 10:22 AM, hcker2000 <hcker2000@xxxxxxxxx> wrote:
>
>> Ok so I see there are ft50-43's and t50-X's I'm guessing the ft50-43's is
>> what I'm after.
>>
>>
>> On Fri, Mar 14, 2014 at 1:19 PM, Juan Carlos Berberena Glez <
>> jcberberena@xxxxxxxxx> wrote:
>>
>>> Hi Fellow
>>> Maybe it's helpful this link
>>>
>>> http://www.kitsandparts.com/toroids.php
>>> 73's
>>> Jc
>>>
>>>
>>> 2014-03-14 13:15 GMT-04:00 hcker2000 <hcker2000@xxxxxxxxx>:
>>>
>>> Ok all good info. So T50's for example would they be suitable for this
>>>> application (the minima)?
>>>>
>>>>
>>>> On Fri, Mar 14, 2014 at 1:08 PM, Joe Street <jstreet@xxxxxxxxxxxx>wrote:
>>>>
>>>>> Amidon has some great application notes which cover the different
>>>>> materials and where their respective strengths and weaknesses lie. It's
>>>>> not as simple as which is better, it depends on the application, frequency
>>>>> range, whether or not the core has to be able to accommodate DC bias
>>>>> currents which can saturate the core, etc etc. Read up on the subject and
>>>>> you will do yourself a favour and be able to design your own inductors and
>>>>> transformers.
>>>>>
>>>>>
>>>>> On 14/03/2014 11:49 AM, hcker2000 wrote:
>>>>>
>>>>> Is 43 better than 61 or is it the other way around?
>>>>>
>>>>>
>>>>> On Fri, Mar 14, 2014 at 11:48 AM, hcker2000 <hcker2000@xxxxxxxxx>wrote:
>>>>>
>>>>>> After looking at that I am tempted to ask "who wants to wrap and
>>>>>> send me some transformers/cores".
>>>>>>
>>>>>> What size did the original designer use?
>>>>>>
>>>>>>
>>>>>> On Fri, Mar 14, 2014 at 11:44 AM, Joe Rocci <joe@xxxxxxxxxx> wrote:
>>>>>>
>>>>>>> Go to this web site and download the very excellent toroid
>>>>>>> calculator program. It has all the information you need to deal with
>>>>>>> different types of toroids.
>>>>>>>
>>>>>>> http://www.dl5swb.de/html/mini_ring_core_calculator.htm
>>>>>>>
>>>>>>> Also, be aware that you'll need a good ferrite material for the
>>>>>>> transformers (type 43 or 61 typical), and low loss powdered iron cores
>>>>>>> for
>>>>>>> the filters (type 2 or 6 typical).
>>>>>>>
>>>>>>> Joe
>>>>>>> W3JDR
>>>>>>>
>>>>>>> ----- Original Message -----
>>>>>>> *From:* hcker2000 <hcker2000@xxxxxxxxx>
>>>>>>> *To:* minima@xxxxxxxxxxxxx
>>>>>>> *Sent:* Friday, March 14, 2014 11:24 AM
>>>>>>> *Subject:* [minima] Toroid size?
>>>>>>>
>>>>>>> I need to pick up some toroid's for winding. does the size mater?
>>>>>>> Links to some good sizes would be greatly appreciated.
>>>>>>>
>>>>>>> --
>>>>>>> Mike "hcker2000" Ashcraft
>>>>>>> http://bigironinteractive.com
>>>>>>>
>>>>>>> <http://www.linkedin.com/in/mikeashcraft>
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Mike "hcker2000" Ashcraft
>>>>>> http://bigironinteractive.com
>>>>>>
>>>>>> <http://www.linkedin.com/in/mikeashcraft>
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Mike "hcker2000" Ashcraft
>>>>> http://bigironinteractive.com
>>>>>
>>>>> <http://www.linkedin.com/in/mikeashcraft>
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> Mike "hcker2000" Ashcraft
>>>> http://bigironinteractive.com
>>>>
>>>> <http://www.linkedin.com/in/mikeashcraft>
>>>>
>>>
>>>
>>>
>>> --
>>> *“If you have a penny and I have a penny and we exchange pennies, you
>>> still have one cent and I still have one cent. But if you have an idea and
>>> I have an idea and we exchange ideas, you now have two ideas and I now have
>>> two ideas.”*
>>>
>>> Lic.Juan Carlos Berberena Gonzalez
>>> WJ6C exCO6BG
>>> www.berberena.com
>>> http://espanol.groups.yahoo.com/group/cacharreando/
>>>
>>>
>>>
>>>
>>
>>
>> --
>> Mike "hcker2000" Ashcraft
>> http://bigironinteractive.com
>>
>> <http://www.linkedin.com/in/mikeashcraft>
>>
>
>
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