[sdiy] Fw: Reference stabilizes exponential current

[Craig Critchley]

The author of this article must be a nut for different ways to build an
exponential converter.  I thought the name looked familiar from a recent
Circuit Cellar article, from the September issue, and sure enough the name's
the same.

In the Circuit Cellar article, he uses two additional transistors in a
ca3046 to heat the chip to a constant temperature.  In that article it was
driving a 74hct4046 vco.  He claimed 4 decades of accuracy for it.

It doesn't look like this article is online yet, but the Circuit Cellar
archive only goes up to Aug. so maybe it will be available later.

                            ...Craig

----- Original Message -----
From: "Michael Lloyd" <mlloyd1 at enteract.com>
To: <synth-diy at dropmix.xs4all.nl>
Sent: Wednesday, October 31, 2001 6:20 PM
Subject: [sdiy] Fw: Reference stabilizes exponential current



----- Original Message -----
From: Michael Lloyd
To: mlloyd
Sent: Wednesday, October 31, 2001 2:59 PM
Subject: Reference stabilizes exponential current


http://www.e-insite.net/ednmag/index.asp?layout=article&stt=000&articleid=CA
178103&pubdate=10/25/2001