Topband: Pennant Transformer
Frank Davis
fdavis at nfld.net
Thu Nov 15 13:41:16 EST 2012
Many tnx to all who replied offline with advice and help.
I am on the right track and hope to complete the project today.
73 Frank VO1HP
-------------------------------------------------------------------------------------------
I am in the process of building a pennant.
I'm stuck on the right way to wind the transformer.
I have Type 73 binocular cores but am not clear on how to do it.
I am feeding the loop with RG6 and my terminating resistor is 910 Ohm 2%.
The transformer will go at the point of the pennant and should be 12:1 ratio ?
For 75 Ohm cable K6SE info sez - 2 turn primary and 7 turns secondary.
I see on W7IUV website he sez - wind the primary on first.
--- so for two turns I do this:
one turn is: - up through one side and down through the other side.
another turn is - continue up one side and down through the other
--- that makes two turns...is that correct?
Winding 7 turns would follow same procedure winding the wire over the primary wire
and have the leads out the opposite end of the core from the primary?
I hope you can follow my primitive description. Am I on the right track?
73 Frank VO1HP
_______________________________________________
Topband reflector - topband at contesting.com
More information about the Topband
mailing list