M3 Semiconductor Analyzer - Cool kit for device matching

DCPreamp · 9th October 2006, 09:28 PM

Howdy,

Has anyone seen or used this: http://www.m3electronix.com/sa.html

I just finished building mine this weekend and it's pretty darned cool. Sure, it's not mega-accurate or "audiophile" approved (audiophile as in: fear of microdiodes, can hear a socketed op-amp, $4,000 speaker cables, etc.), but I'm impressed.

I wanted to match some small-signal devices for a discrete op-amp/preamp design and was going to build a jig and build my own. I figured I'd do some research and see what was out there and get some ideas. I came across the M3 and got one. I really like it and built mine with an AC power supply and transistor sockets along with a small PCB for SMT devices to speed testing. I attached a picture.

I'm not associated with the company in any way, but thought it was a great product and pretty cheap (about $67 total with a case and S/H) for everything it did and thought I'd spread the word for other DIY'ers.

Enjoy,
Paul

Zero Cool · 9th December 2006, 03:54 PM

COOL! i am going to buy one for small devices as well!

Zc

Jan Dupont · 9th December 2006, 04:03 PM

Nice

d3imlay · 10th December 2006, 11:34 AM

Some multimeters have a built in transistor gain function. Of course this only works for matching known transistors. I have a leader curve tracer set up with a dedicated 3" scope. I like seeing the waveforms but a device like the one mentioned here that gives a readout sure is nice.

Zero Cool · 10th December 2006, 12:54 PM

I have a cheap Multimeter with the transistor function. i have used it for some small transistors but i have no idea how accurate that thing is or what exactly it is measuring even though it says beta. I need a better system and this looks quite nice for a small device to at least get some basics! I like the fact that the leads can be hooked up in any fashion and it figures out how the DUT is connected! thats cool!

Zc

Zero Cool · 13th December 2006, 11:16 AM

Well i ordered my kit last night! cant wait for it to get here!

Zc

Zero Cool · 17th December 2006, 06:01 PM

My kit arrived in 3 days and i had it built in about 1-1/2hrs or so with a few breaks and interuptions in there.

Very very cool little kit! I highly recoomend this kit to anyone! Great for basic test's matching diodes, checking out LED's etc etc.

A+++

Zc

9th December 2006, 04:03 PM	#3
Jan Dupont diyAudio Member Join Date: Apr 2003 Location: Copenhagen, Denmark	Nice __________________ Free Schematic and Service Manual downloads www.audio-circuit.dk, Company: www.dupont-audio.com, Joint venture: www.DupontMantra.com

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9th December 2006, 03:54 PM	#2
Zero Cool Audio Junkie diyAudio Member Join Date: Sep 2004 Location: MN	COOL! i am going to buy one for small devices as well! Zc

10th December 2006, 11:34 AM	#4
d3imlay diyAudio Member Join Date: Sep 2004 Location: Ohio	Some multimeters have a built in transistor gain function. Of course this only works for matching known transistors. I have a leader curve tracer set up with a dedicated 3" scope. I like seeing the waveforms but a device like the one mentioned here that gives a readout sure is nice.

10th December 2006, 12:54 PM	#5
Zero Cool Audio Junkie diyAudio Member Join Date: Sep 2004 Location: MN	I have a cheap Multimeter with the transistor function. i have used it for some small transistors but i have no idea how accurate that thing is or what exactly it is measuring even though it says beta. I need a better system and this looks quite nice for a small device to at least get some basics! I like the fact that the leads can be hooked up in any fashion and it figures out how the DUT is connected! thats cool! Zc

13th December 2006, 11:16 AM	#6
Zero Cool Audio Junkie diyAudio Member Join Date: Sep 2004 Location: MN	Well i ordered my kit last night! cant wait for it to get here! Zc

17th December 2006, 06:01 PM	#7
Zero Cool Audio Junkie diyAudio Member Join Date: Sep 2004 Location: MN	My kit arrived in 3 days and i had it built in about 1-1/2hrs or so with a few breaks and interuptions in there. Very very cool little kit! I highly recoomend this kit to anyone! Great for basic test's matching diodes, checking out LED's etc etc. A+++ Zc

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