Topband: 10 to 1 Ferrite Balun

[James Wolf]

Why not just use your #73 core with 2 x 6 turns.  It's close enough to 800 for receive.

Jim - KR9U 

-----Original Message-----
From: Topband [mailto:topband-bounces at contesting.com] On Behalf Of Richard (Rick) Karlquist
Sent: Tuesday, March 19, 2019 3:27 PM
To: Chuck Dietz
Cc: TopBand List; Herbert Schoenbohm
Subject: Re: Topband: 10 to 1 Ferrite Balun



On 3/19/2019 12:13 PM, Chuck Dietz wrote:
> Wouldn’t you connect the secondarys in series and the primaries in parallel?
> 
> Chuck W5PR
> 

The ADT8-1T+ is a 50 ohm to 400 ohm transformer.
Two connected in series results in a 100 ohm to 800 ohm transformer.
If you instead connect the primaries in parallel, you would in
in principle have a 25 ohm to 800 ohm transformer.  That isn't
what Herb needs.

73
Rick N6RK
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