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From: "Michael A. Terrell"
Subject: Re: Limitations of the BC337
Date: Fri, 10 Jan 2003 01:10:11 -0500
Organization: Have you seen my bench? No, really! Where is it?
X-Mailer: Mozilla 4.61 [en]C-CCK-MCD (Win95; U)
John Jardine wrote:
> Jeff Verive wrote in message
> > "John Jardine" wrote in message
> > news:firstname.lastname@example.org...
> > > This stuff is the magical part of analogue design and to get a decent
> > > response you need to try a number of tricks/techniques. The easiest is
> > > keep the gain low and design the collector resistance to be as low as
> > > possible. Keep the source impedance as low as possible. Use 'R.F'
> > > transistors with high Ft's and low collector-base capacitances. Keep the
> > > collector strays and loading capacitances as low as possible.
> > Hey, don't give away the secrets of those of us who stayed awake and
> > worked out those multi-stage transistor amplifier designs by hand!
> > Just kidding, although there seems to be quite a chasm between "digital"
> > "analog" engineers. Luckily, as circuits get faster and faster, even the
> > digital guys (and gals) have to stay awake in those boring analog courses.
> > The bottom line: for circuits operating above 10kHz or so, ALWAYS consider
> > parasitics, since they invariably add more poles (and an occasional hole)
> > than the schematic shows.
> > Jeff
> I don't mind bumping into the poles, as I can spot 'em beforehand. It's
> those damned hidden holes I keep falling in!.
"CAUTION! Watch out for moving holes!" :)
Michael A. Terrell
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