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LostInSpace2010

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Principle Engineer

Steve is the owner of AnalogHome - A Custom Elecronics Design Resource. Steve has designed and provided high quality electronic hardware and software solutions from DC to 20 GHz for a diverse set of markets. More information can be found at: www.AnalogHome.com in addition to the Blog hosted here at EDN.


LostInSpace2010

's contributions
  • 04.15.2014
  • 3 Comment(s)
Coming soon to a PCB near you...
  • 03.14.2014
  • 5 Comment(s)
Beware of the square root
  • 02.07.2014
  • 4 Comment(s)
GNU Octave hits a high note
  • 01.23.2014
  • 2 Comment(s)
DSOs and noise
  • 11.12.2013
  • 9 Comment(s)
Long-lived (design) software
  • 05.23.2014
  • Milliohm Squawker great at finding shorts and reverse engineering PCBs
  • These are clever little devices like the Huntron Tracker, that you can't really appreciate until you use one and it solves your problem. For those more inclined to buy then build - I got one several years back from Probemaster.com, Model - 105- Audible Continuity Probe. It is hand held and works well on live and dead circuits!
  • 05.02.2014
  • When reliability hangs by a "wall wart" thread
  • I personally apply a little 1980's HP Qualification Engineering to external power supplies and Audit them + Qualify the supply with the product (Shake, shock, temp, overstress, HALT, etc.). But not everyone does this and they pick based on cost alone, which as the stories here tell, usually does not work out for the better. Alas, when will we ever learn?
  • 04.01.2014
  • Oscilloscope diseases
  • You know - Tek was the leader in scope triggering. No one, not even HP could match Tek's triggering. That's why we all loved our Tek Scopes for Analog. For instance, my 350 MHz Tek 2465B will trigger reliability on a 900MHz signal - that's just one reason the Teks were so good. There is probably no hope for the little Hitachi, although it is probably an otherwise nice little scope.
  • 04.01.2014
  • Oscilloscope diseases
  • Oh my now... I had to look up what a 466 was (They ought to take my Tek Scope Lovers Badge away from me!). Ahhhh Yessss the Storage version of the 465. When I got out of school my most prized possession was a Tek 465B - what a fine scope. I have a few Tek Digitals which work OK for most things and I have a 2465B with the DMM Option - 350 MHz of "Scope Bliss" baby!
  • 04.02.2014
  • ACE Awards winners announced at EE Live!
  • Congrats to Contributor of the year winner Jack Ganssle - If anyone ever deserved to win this it is him. I have been reading (and implementing) his ideas ever since I learned to spell: "Embedded System". A prolific writer and superb teacher - keep up the good work Jack!
  • 04.01.2014
  • Oscilloscope diseases
  • We used to have: "Grease-itus" from tracing a signal on the scope face with a Grease Pencil. This was naturally removed by your finger tip and rubbed on your white pants (It was the 70's afterall). This disease was cured with the discovery of: "Polaroid Camerus" and a later discovery of "Displayus Storageus". Interestingly this is a mostly unknown phenomenon to the current casual user, as today we use the breed: Digital Scopeius and they can do anything, except properly display an Analog Signal.
  • 03.25.2014
  • Give me those old-tyme displays
  • Ahhhh, a trip back in time. I have a Systron Donner 12 MHz counter that uses Nixie Tubes - It still runs today even without replacing the caps it probably dates to the early 70's. 1Hz readout accuracy. Funny, I can program a PIC uP to read 50 MHz with 24 bits of precision today that will run for a long time on a 9V battery! I see the Filament type displays available from the Ukraine in eBay. I think I'll buy some. HP had some really nifty vector CRT's like the one used in the HP8566 Spectrum Analyzer Series.
  • 03.26.2014
  • Common PCB design mistakes
  • I managed to get the text backwards on a 2 layer board, so the PCB vendor built it upside down! It was mostly through hole, so those parts did not care, but the IC's I had to load upside down and bend the leads back down to the board (This was way before CSP and BGA's so it worked). I felt really stupid on that one.... :-)