PSN-L Email List Message

Subject: RE: New subscriber
From: "Steve Hammond" shammon1@.............
Date: Tue, 1 Mar 2005 09:19:21 -0800

Sure John. We can also post your additional design to the site along with
the others if you want to do this. Send the design directly to me with PSN:
in the start of the subject line so I don't trash it in the spam mail
whenever you finish it.
Regards, Steve

-----Original Message-----
From: psn-l-request@..............
[mailto:psn-l-request@................. Behalf Of John Popelish
Sent: Tuesday, March 01, 2005 1:42 AM
To: PSN-L@..............
Subject: RE: New subscriber

"Steve Hammond"  wrote:

> Hi John, Hi Chris and others,
> You can find what many consider to be the original PSN amp design
> at in the right column.
> In my document files,  I also have an older design done by Jan Froom
> which dates back before 1989 which includes a 12-bit A/D.
> Pete Row designed the amp and filter found on the website
> and freely gave it to the members of the PSN group in 1990
> at one of the first PSN meetings we held.
> Below that, on the same web page, you will find another design
> which came from Sean Morrissey. Sean has passed as may know
> and was also a world class designer. I have been using Pete's design
> for 15 years and it is easy to build and diagnose when an op-amp fails.

Thank you, Steve, for this information.
I will review these amplifier and filter designs, in detail,
including all filter responses.

Are you interested in seeing my critique of these when I get to that?

I am sure my design will steal
from them, though I think I might be able to slightly improve
upon some aspects, based on a quick look.
I will make available to the group anything that I design,
including a parts list, theory of operation, and schematic.

If you have any other schematics in emailable form that you would
like me to consider, you may email them to me at jpopelish@.........
I am not worried about this address appearing in public,
since it is what I have used on usenet for a few years.
I often tutor, there, on sci.electronics.basics.

John Popelish

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