Date: Thu, 9 May 2019 13:42:30 +0100
From: Chris Wilson <dead.fets@gmail.com>
Message-ID: <853391954.20190509134230@gmail.com>
To: DK7FC <rsgb_lf_group@blacksheep.org>
In-Reply-To: <5CB37097.90104@posteo.de>
References: <477297345.20190414143742@gmail.com> <5CB35457.9060303@posteo.de> <592014641.20190414170848@gmail.com> <5CB37097.90104@posteo.de>
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Subject: Re: LF: Another impedance matching question. Paul's audio amps.
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Hello Stefan,

I  am  now on to building a matching transformer but it seems Buerklin
have  a  minimum  order  of  60 units! I have found this bigger core at
Mouser, could I use that instead please?

https://www.mouser.co.uk/ProductDetail/EPCOS-TDK/B64290L0730X830?qs=4l9S5vBWkUJtsO6ZFRCS4g%3D%3D

Sunday, April 14, 2019, 6:40:39 PM, you wrote:

> Hello Chris,

> Am 14.04.2019 18:08, schrieb Chris Wilson:
>> I  have about 17 acres to play with,
> That's very well suitable to play with!
>>   mainly woodland
> Doesn't matter, no disadvantage.
>>   but with a 5 acre
>> field  and  a big front garden. I thought an aerial antenna would be a
>> none  starter  due  to  the voltages involved, so I'll be looking at a
>> ground  loop  for  sure.
> Yes, do that! It is so easy to build up! No coils, no high voltage. It
> will have a high bandwidth and you can simply put the two wire ends into
> the shack and series resoante them there.
>>   but I am going to need some basic advice to get going I am afraid
>>    
> Don't worry.
> I do recommend this ferrite core: 
> https://www.buerklin.com/en/Products/Passive-Components/Inductors/Ferrites/Ring-core%2C-outer-%C3%98-x-inner-%C3%98-x-height-%3D-63-x-38-x-25-mm%2C-N30/p/84D258

> 73, Stefan


-- 
Best regards,
 Chris                            mailto:dead.fets@gmail.com