[minima] Re: Toroid size?
- From: Thomas Sarlandie <thomas@xxxxxxxxxxxxx>
- To: "minima@xxxxxxxxxxxxx" <minima@xxxxxxxxxxxxx>
- Date: Thu, 20 Mar 2014 20:51:42 -0700
I started with 36 AWG but I have now found 32 AWG and it is much better. 36
is too small, the wires would not even hold the toroid in place.
On Sun, Mar 16, 2014 at 6:42 AM, Jeremy Chase <jeremychase@xxxxxxxxx> wrote:
> 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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