Topband: Two 2:1 transformers to choose from!!

[Charlie Cunningham]

I'd be surprised if a little mismatch between an approx. 100 ohm twisted
pair and 50 ohm coax would make any really noticeable difference, but some
sort of balun might be in order. For the 40' X 10' KAZ loop that I had, I
just tied the primary of the transformer to some RG-58 that ran through an
old tunable AMECO tube preamp to the RX antenna input of the FT-1000MP.

73,
Charlie, K4OTV


-----Original Message-----
From: Topband [mailto:topband-bounces at contesting.com] On Behalf Of Mike
Waters
Sent: Thursday, August 22, 2013 9:58 PM
To: topband
Subject: Re: Topband: Two 2:1 transformers to choose from!!

I meant to add "unless you need a certain impedance ratio".


On Thu, Aug 22, 2013 at 8:51 PM, Mike Waters <mikewate at gmail.com> wrote:

> That is EXACTLY what I have experienced here.
>
> 73, Mike
> www.w0btu.com
>
> On Thu, Aug 22, 2013 at 8:40 PM, Tom W8JI <w8ji at w8ji.com> wrote:
>
>>
>> Two turns for 75 ohms is plenty for decent 100 kHz to 30 MHz performance.
>>
>
>
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Topband Reflector