From: Pete Smith N4ZR n...@contesting.com
To: Topband@contesting.com
Sent: Tue, March 26, 2013 9:41:23 AM
Subject: Re: Topband: binocular matching transformers - Solved
Thanks to everyone who helped me straighten this out. Changing from 2:4 to 4:8
turns
Hi!
Thanks! I hope this will solve my problem also.
Kind regards,
73
SG/VU3TKG
On Tue, Mar 26, 2013 at 12:51 AM, Pete Smith N4ZR n...@contesting.comwrote:
Thanks to everyone who helped me straighten this out. Changing from 2:4
to 4:8 turns made all the difference, probably, as a couple of
Thanks to everyone who helped me straighten this out. Changing from 2:4
to 4:8 turns made all the difference, probably, as a couple of people
suggested, because only two turns ion the primary is inadequate.
Anyhow, everything now behaves as expected, so it's time (as soon as the
snow melts)
Pete,
You're correct on the turns ratio: the impedance ratio is the square of the
turns ratio. I'm wondering whether you are considering that one turn on a
binocular core is actually one pass through both holes. There's a photo
clearly showing this at
Please have mercy on a history major...
I'm trying to wind a binoocular core matching transformer for 75-ohm
coax to a BOG with (for a start) 270 ohms of terminating resistance. I
figure that is a 4:1 stepdown, which should require a turns ratio of
2:1. Initially I wound a #73 core with
