If you're interested primarily in tubes, you should check out the uTracer
which is a very clever implementation using pulsed power supplies and a
computer for the analysis/display. Google uTracer and you'll get a
zillion hits but the home URL is
www.dos4ever.com/uTracer3/uTracer3.html
I do very little with tubes, but I was very impressed with the implementation.
He has a kit available too, which makes construction easy.
Wow, I just checked the web site and there's now a Linux version of the GUI.
The latest version goes up to 400V as well. Extremely impressive. I'm
tempted to get a kit just for the heck of it.
For the record, I have a 576, 577 and a 7ct1n (which is the one that seems to
get used the most since I'm mostly checking small signal transistors).
Paul
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On Mon, May 14, 2018 at 03:02:16PM -0400, David Berlind wrote:
My main interest in a curve tracer would be for tube testing/matching. A
few months back, I believe there was discussion of a home-grown 576 fixture
for that. For now, one of my upcoming projects is to build my own tube
testing rig. For example, I'd wire up a single socket to some voltage and
amperage gauges and power the rig with an external DC supply across a
mixture of plate voltage and cathode resistance ranges. But that's a a lot
of work for each tube. I've seen a few hacks that convert old oscilloscopes
into curve tracers but haven't really studied any of them.
--
Paul Amaranth, GCIH | Rochester MI, USA
Aurora Group, Inc. | Security, Systems & Software
paul@... | Unix & Windows
