Message	Date	From	Subject
6206	2011-04-26 06:38:26	Chris Trask	JPL Amplifier (was: New file uploaded to emrfd)
> >This email message is a notification to let you know that >a file has been uploaded to the Files area of the emrfd >group. > > File : /78A.PDF > Uploaded by : ha5rxz <ha5rxz@gmail.com> > Description : A High Isolation Amplifier Produced By JPL > >You can access this file at the URL: >http://groups.yahoo.com/group/emrfd/files/78A.PDF > That's interesting. They used a push-pull common-base input stage for isolation followed by a push-pull common-emitter negative feedback output stage for gain. Nice combination of topologies. Chris Trask N7ZWY / WDX3HLB Senior Member IEEE http://www.home.earthlink.net/~christrask/

>
>This email message is a notification to let you know that
>a file has been uploaded to the Files area of the emrfd
>group.
>
> File : /78A.PDF
> Uploaded by : ha5rxz <ha5rxz@gmail.com>
> Description : A High Isolation Amplifier Produced By JPL
>
>You can access this file at the URL:
>http://groups.yahoo.com/group/emrfd/files/78A.PDF
>

That's interesting. They used a push-pull common-base input stage for isolation followed by a push-pull common-emitter negative feedback output stage for gain. Nice combination of topologies.

Chris Trask
N7ZWY / WDX3HLB
Senior Member IEEE
http://www.home.earthlink.net/~christrask/