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Old May 15th 04, 10:38 PM
Ken Scharf
 
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Default pulse transformers

I discovered a lot of pulse transformers. They appear to have primary
and secondary inductance of about 1.5mh and a ratio of 1:1ct

I wonder if they could be used as broadband rf transformers
to make homebrew diode ring mixers?
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Old May 16th 04, 12:53 AM
Henry Kolesnik
 
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toroidal, ferrite, iron?
"Ken Scharf" wrote in message
...
I discovered a lot of pulse transformers. They appear to have primary
and secondary inductance of about 1.5mh and a ratio of 1:1ct

I wonder if they could be used as broadband rf transformers
to make homebrew diode ring mixers?



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Old May 16th 04, 12:53 AM
Henry Kolesnik
 
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toroidal, ferrite, iron?
"Ken Scharf" wrote in message
...
I discovered a lot of pulse transformers. They appear to have primary
and secondary inductance of about 1.5mh and a ratio of 1:1ct

I wonder if they could be used as broadband rf transformers
to make homebrew diode ring mixers?



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Old May 16th 04, 06:17 AM
Gregg
 
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I have used them as DBM's as high as the 1750M LowFER band :-)

--
Gregg
*It's probably useful, even if it can't be SPICE'd*
http://geek.scorpiorising.ca
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Old May 16th 04, 06:17 AM
Gregg
 
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I have used them as DBM's as high as the 1750M LowFER band :-)

--
Gregg
*It's probably useful, even if it can't be SPICE'd*
http://geek.scorpiorising.ca


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Old May 16th 04, 06:23 AM
Leon Heller
 
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"Ken Scharf" wrote in message
...
I discovered a lot of pulse transformers. They appear to have primary
and secondary inductance of about 1.5mh and a ratio of 1:1ct

I wonder if they could be used as broadband rf transformers
to make homebrew diode ring mixers?


I don't think they will work very well, you really need transmission line
transformers wound on suitable cores for diode ring mixers.

Leon
--
Leon Heller, G1HSM
http://www.geocities.com/leon_heller


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Old May 16th 04, 06:23 AM
Leon Heller
 
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Default

"Ken Scharf" wrote in message
...
I discovered a lot of pulse transformers. They appear to have primary
and secondary inductance of about 1.5mh and a ratio of 1:1ct

I wonder if they could be used as broadband rf transformers
to make homebrew diode ring mixers?


I don't think they will work very well, you really need transmission line
transformers wound on suitable cores for diode ring mixers.

Leon
--
Leon Heller, G1HSM
http://www.geocities.com/leon_heller


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Old May 16th 04, 12:48 PM
 
Posts: n/a
Default

I discovered a lot of pulse transformers. They appear to have primary
and secondary inductance of about 1.5mh and a ratio of 1:1ct

I wonder if they could be used as broadband rf transformers
to make homebrew diode ring mixers?


I don't think they will work very well, you really need transmission line
transformers wound on suitable cores for diode ring mixers.

=======
Perhaps not suitable for higher RF frequencies ,but these transformers can
be readily used for AF ,for example to provide galvanic separation between
a PC (soundcard) and a radio for operating digital modes like PSK31 etc .

Frank GM0CSZ / KN6WH


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Old May 16th 04, 12:48 PM
 
Posts: n/a
Default

I discovered a lot of pulse transformers. They appear to have primary
and secondary inductance of about 1.5mh and a ratio of 1:1ct

I wonder if they could be used as broadband rf transformers
to make homebrew diode ring mixers?


I don't think they will work very well, you really need transmission line
transformers wound on suitable cores for diode ring mixers.

=======
Perhaps not suitable for higher RF frequencies ,but these transformers can
be readily used for AF ,for example to provide galvanic separation between
a PC (soundcard) and a radio for operating digital modes like PSK31 etc .

Frank GM0CSZ / KN6WH


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Old May 16th 04, 01:27 PM
Highland Ham
 
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I discovered a lot of pulse transformers. They appear to have primary
and secondary inductance of about 1.5mh and a ratio of 1:1ct

I wonder if they could be used as broadband rf transformers
to make homebrew diode ring mixers?

---------------------------
I don't think they will work very well, you really need transmission line
transformers wound on suitable cores for diode ring mixers.
=======

Perhaps not suitable for higher RF frequencies ,but these transformers can
be readily used for AF ,for example to provide galvanic separation between
a PC (soundcard) and a radio for operating digital modes like PSK31 etc .

Frank GM0CSZ / KN6WH




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