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Old March 4th 06, 10:05 AM posted to rec.radio.amateur.homebrew
Eamon Skelton
 
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Default mixer: DBM or dual gate mosfet?

On Fri, 03 Mar 2006 22:20:28 -0500, Ken Scharf wrote:

There was an article in the ARRL HB (1995 and probably others) about using
an SD5000 quad mosfet as a mixer.


Also see N6NWP's article from QST June 1993. And the
H-mode mixer by G3SBI in RadCom and various other RSGB
publications.

I bought a few of these transistors a few years ago...

I see the SD5000 is still listed on Calogic's website
http://www.calogic.net/html/dmos.html Is the SD5000
still widely available? The search engines turn up a
lot of data but very few suppliers. Perhaps a ring of
discrete MOSFETs or a fast switch IC like the FST3125
might be a better choice.

73, Ed. EI9GQ.


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