Message	Date	From	Subject
7193	2012-01-24 06:52:50	Alan Melia	re KISS mixer ??
Hi Chris on the point of raised by Farhan about using BJT devices .........I am guessing that the saturation voltage could be a slight problem here ?? I seem to remember from a long long time ago that the saturation voltage (particularly with planar structures) was a lot lower if they were run "reversed". The gain is not very good ( :-)) ) in this configuaration but that might not matter as a switching mixed element?. BTW Thanks for your interesting article. Alan G3NYK
7199	2012-01-24 20:26:18	ehydra	Re: re KISS mixer ??
This is a quad 2N2222 mixer: http://tf.boulder.nist.gov/general/pdf/2556.pdf - Henry Alan Melia schrieb: > Hi Chris on the point of raised by Farhan about using BJT devices .........I > am guessing that the saturation voltage could be a slight problem here ?? I > seem to remember from a long long time ago that the saturation voltage > (particularly with planar structures) was a lot lower if they were run > "reversed". The gain is not very good ( :-)) ) in this configuaration but > that might not matter as a switching mixed element?. -- ehydra.dyndns.info

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7193

2012-01-24 06:52:50

Alan Melia

re KISS mixer ??

Hi Chris on the point of raised by Farhan about using BJT devices .........I
am guessing that the saturation voltage could be a slight problem here ?? I
seem to remember from a long long time ago that the saturation voltage
(particularly with planar structures) was a lot lower if they were run
"reversed". The gain is not very good ( :-)) ) in this configuaration but
that might not matter as a switching mixed element?.

BTW Thanks for your interesting article.

Alan G3NYK

7199

2012-01-24 20:26:18

ehydra

Re: re KISS mixer ??

This is a quad 2N2222 mixer:
http://tf.boulder.nist.gov/general/pdf/2556.pdf

- Henry

Alan Melia schrieb:

> Hi Chris on the point of raised by Farhan about using BJT devices .........I
> am guessing that the saturation voltage could be a slight problem here ?? I
> seem to remember from a long long time ago that the saturation voltage
> (particularly with planar structures) was a lot lower if they were run
> "reversed". The gain is not very good ( :-)) ) in this configuaration but
> that might not matter as a switching mixed element?.

--
ehydra.dyndns.info