Products > Test Equipment

Show Us Your Curve Tracer

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Jacon:

--- Quote from: david77 on September 28, 2021, 11:00:37 am ---
You can still get it from ELV
----

--- End quote ---
Iron Curtain apparently still exists...
Unable to buy them from Poland

0culus:
Man, I don't think I've seen a 370 or 371 in the wild! Neat! While we are on the subject of "modern" curve tracers, I give you my -hp- 4145B system I have put together. We are showing Ic-Vbe and Ib-Vbe characteristic curves for a 2N2222A, on a log-log plot. This makes it easy to compute AC beta for any values of Ic using cursor math (shown at the bottom of the graphics display). The flat lines at the end are the SMUs going into compliance at 100 mA. The real strength of the 4145B (and it's later and far more expensive brethren, the 4155 and 4156) is very low current measurements. In fact, most of these were used in wafer probe stations and not as bench instruments, even though you totally can with the 16058A test fixture.

0culus:

--- Quote from: edavid on September 23, 2021, 06:15:00 pm ---I have a Tek 371, complete with bubble memory cartridge, but I've never been able to find a test fixture for it.  Anyone have a spare?

(the second photo shows me defeating the fixture interlock, the hard way)

--- End quote ---


I seem to recall seeing a complete 371 for sale on the bay of fleas once, for a suitably obscene amount of money.  :palm:

TERRA Operative:
Nice, I just picked up a 4145B a couple days ago for about a hundred and fifty bucks, will look nice sitting next to my 4145A. :D Couldn't pass it up....
I just need a few test pins for the test fixture, and 4 triax cables and I have a full 16058A test fixture.

A 371 just sold here in Japan for around a thousand bucks, on the lower end of the going rate for them these days, depending on exact model, they sell for one to two grand, approaching three if it comes with all the accessories etc.

Johnny10:
That was a really good buy!

HP 4145B

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