That's all well and good, but the closer one gets to the factory, the
larger the minimum. And it sure does get interesting if you just want to
buy one or two. I don't really care what Amidon is. They sell to hams in
small quantity. If anyone actually has a source, with a URL other than
Amidon, someone else who sells single quantities of what Amidon sells as
T300A-2 #2 powdered iron toroids, we all would LOVE to know. Micrometals
does not appear to sell retail. I see their stuff on eBay. Like a pair of
the Micrometals T300-2 which would fill the bill in a two core stack:
http://www.ebay.com/itm/MICROMETALS-T300-2-IRON-POWER-TOROID-3-CORE-PAIR-NEW-/130528349950?pt=LH_DefaultDomain_0&hash=item1e64188efe#ht_651wt_1104
73, Guy.
On Thu, Dec 15, 2011 at 8:26 PM, ZR <zr@jeremy.mv.com> wrote:
> **
> Amidon is not even a distributor, they are a reseller and buy from a
> distributor so you pay a double markup.
>
> For Fair-Rite they make up their own # such as FT240-61 since the other #
> is long and hard to remember. With Micrometals they mostly just copy them.
>
> If you want FACTORY data on any of them go to the FACTORY web site.
>
> Carl
> KM1H
>
>
>
> ----- Original Message -----
> *From:* Guy Olinger K2AV <olinger@bellsouth.net>
> *To:* ZR <zr@jeremy.mv.com>
> *Cc:* Martin <hamradio@vr-web.de> ; topband@contesting.com
> *Sent:* Thursday, December 15, 2011 5:52 PM
> *Subject:* Re: Topband: T-200 vs. T-300
>
> You may be right that Micrometals makes most of that stuff and sources
> Amidon. But these are the individual company product numbers and you have
> to use the company's own product numbers to order stuff from that given
> company. You would need to take up Amidon's nomenclature choices with
> Amidon.
>
> Personally I am more annoyed that Amidon uses a different A sub L number
> scheme than the rest of the world and has their own unique set of formulas.
> Anyone knows how that came about, that would be interesting to know. 73,
> Guy.
>
> On Thu, Dec 15, 2011 at 3:44 PM, ZR <zr@jeremy.mv.com> wrote:
>
>> There is no such thing as an Amidon T-300 or any other toroid. In this
>> case they are just a reseller of Micrometals powered iron products.
>>
>> Carl
>> KM1H
>>
>>
>> ----- Original Message ----- From: "Guy Olinger K2AV" <
>> olinger@bellsouth.net>
>> To: "Martin" <hamradio@vr-web.de>
>> Cc: <topband@contesting.com>
>> Sent: Thursday, December 15, 2011 2:39 PM
>>
>> Subject: Re: Topband: T-200 vs. T-300
>>
>>
>>> The Amidon T300A-2 can be replaced with a stacked PAIR of Amidon T300-2,
>>> with a SINGLE Micrometals T300-2D, or a stacked PAIR of Micrometals
>>> T300-2.
>>> You can find the Micrometals cores on eBay. You CAN use the Amidon
>>> T400A-2, but that core is forty bux compared to the T300A-2's sixteen,
>>> and
>>> I haven't figured the correct smaller number of turns to balance the FCP,
>>> and since the T300A-2 does the job, why bother to blow 24 bux? Maybe for
>>> 5kW RF someone needs to do the work.
>>>
>>>
>>>
>>
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>
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