On Mon, 6 Jun 2005 17:29:06 -0400, Hal Rosser wrote:

"Allodoxaphobia" wrote in message
...
On Mon, 06 Jun 2005 07:31:32 -0400, J. B. Wood wrote:
In article jzuoe.940$KQ2.679@trnddc08, "puns"
wrote:

Are those small 300/75 ohm tv baluns. voltage or current type?

Hello, and these broadband 4:1 (impedance ratio) baluns most often are
voltage type using two transformers. ... ... ...

Only the 'quality' ones. I've seen too many that were simply
resistor bridges. More like a 6dB insertion loss per leg than
the 'ideal' 3dB loss in a quality transformer-built version.

Allodoxaphobia,
you must be talking about a tv 'splitter', rather than the balun
(remember, the balun has a 300-ohm cable on one end and a place to screw
coax on the other side.)
it wouldn't (normally) have 3db loss like a splitter would.

Yep. You are correct -- I was misreading what my eyes were taking in.
Tho' it would not surprise me to see some cheap 'balun' consisting
of 100ohm-75ohm-100ohm in series with the coax tacked across the
75ohm resistor....

Jonesy -- who needs more skills in Reading-For-Comprehension...
--
| Marvin L Jones | jonz | W3DHJ | linux
| Gunnison, Colorado | @ | Jonesy | OS/2 __
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