Danny Richardson wrote:
After all, we
are talking common mode impedance here and the unit did show excellent
choking impedance at its resonate frequency (about 1.58MHz.). But had
a very narrow range. (dropping from over 6K @ 1.58 MHz. to less than
1K @ 3.5 MHz., 700-ohms @ 7 MHz, less than 300-ohms @ 14 MHZ and the
lowest was 130-ohms @ 30 MHz.

Did you also measure the phase angle for those readings?
--
73, Cecil, http://www.qsl.net/w5dxp

On Thu, 16 Nov 2006 14:55:02 GMT, Cecil Moore
wrote:

Did you also measure the phase angle for those readings?

Yes, at resonance it was, of course, 0º. From 3 to 30 MHz. it varied
between -61º to -81º.

Danny

Danny Richardson wrote:
Cecil Moore wrote:
Did you also measure the phase angle for those readings?

Yes, at resonance it was, of course, 0º. From 3 to 30 MHz. it varied
between -61º to -81º.

Is the inductive side of resonance of no use in
that type of balun?
--
73, Cecil, http://www.qsl.net/w5dxp

On Thu, 16 Nov 2006 19:04:39 GMT, Cecil Moore
wrote:

Is the inductive side of resonance of no use in
that type of balun?

Its resonate at about 1.58 MHz. Whatcha going to use it for? Broadcast
AM radio?

Danny

Danny Richardson wrote:
Cecil Moore wrote:
Is the inductive side of resonance of no use in
that type of balun?

Its resonate at about 1.58 MHz. Whatcha going to use it for? Broadcast
AM radio?

I wasn't talking about that particular balun just that
particular method of construction. If a balun like that
one were made resonant at, say 7 MHz, would it still be
useful at 4 MHz? at 2 MHz? In other words, what is the
shape of the choking curve below resonance for that
particular method of construction?
--
73, Cecil, http://www.qsl.net/w5dxp