Re: Binocular choke extras

Glen Walpert wrote:

Don wrote:

<snip>

It looks to me that the 3 sections of coax shield are in parallel with
the
metal tubes and their opposite end shorting bar, forming the low
impedance
single turn winding, to be connected at the unshorted end with the coax
shield connections, hi-Z connections to coax center conductors extending
from opposite end - 4:1 balun?

<https://www.qsl.net/kf8od/ldmos1.html> offers a more fleshed out
circuit description. The designer designates the device a 4:1 "very
broadband transformer."
    <https://www.qsl.net/kf8od/ldmos34.jpg> shows the schematic. In the
amp as assembled, the transformer output's oriented on the bottom:
<https://www.qsl.net/kf8od/ldmos50.jpg>. Everything about its output
makes perfect sense to me. The transformer's twin tubular primary inputs
shown at the latter link also makes perfect sense to me.
    A center tap for the transformer's the thing missing from my mind's
eye. Perhaps the shield of the coax cryptically connects the center tap?

Danke,

--
Don, KB7RPU, https://www.qsl.net/kb7rpu
There was a young lady named Bright Whose speed was far faster than light;
She set out one day In a relative way And returned on the previous night.