The story of HP's Logic Analyzers



#5

I've just posted a blog with some of the story of how HP got into the logic analyzer business. Not told is the story of how an HP 1615A prototype logic analyzer was essential in stamping out the last hardware bug in the HP 9845A desktop computer. There was a problem with the "high-speed" DMA I/O to the floppy disk drive (400K transfers/sec!) and the glitch-capture feature of the HP 1615A found the problem in minutes, once we got the box up from Colorado Springs Division.

After Silicon, SoC, and System Realization comes Dynasty Realization


#6

Hi,Steve!
Great history and great equipments!
I had one HP1630D and now the HP 1650B.
The first, as oscilloscope, had, if I remember well, a difficulty with ranges or probes. Something is not variable, what makes more difficult to work with it, at least to me, that bought it more for its HP-IL connection.
The other has an unbelieveable mistake: the operational systems is on flopy disks. My one sits, now, on bench, waiting for a new floppy drive, which is not the usual 3.5 floppy, as its power cable is not separeted from the data flat cable.
As you seem to be acquainted with them, do you have any idea how to replace this floppy disk unit?


#7

Sorry Artur,

I do not know how to get a replacement drive for your analyzer. The guy you need to contact is Larry Atherton who has a store on that auction site called LA Tech Renewal. He might be able to help although his specialties are HP 85 computers and voltmeters.

--Steve

#8

I think I have one of those drives. Looks brand new.

(Is sitting here on top of my computer)

Sony MP-F73W-50

bruce_l@westbrookent.com

if it's the right one and if you are interested...


Possibly Related Threads...
Thread Author Replies Views Last Post
  RPN logic question Victor Quiros 52 1,540 03-12-2013, 02:59 PM
Last Post: Victor Quiros
  HP-65 logic board repair - help required Alberto Fenini 1 174 02-17-2013, 06:39 PM
Last Post: John Robinson
  HP-50G Equation Editing Logic Matt Agajanian 4 225 04-20-2012, 11:21 PM
Last Post: Matt Agajanian
  OT: Help with Logic Dart AC adapter Donald Williams 9 377 03-19-2011, 10:22 AM
Last Post: Donald Williams
  Just found another HP durability story Paul Gaster 0 122 02-08-2011, 04:04 PM
Last Post: Paul Gaster
  USB Logic Analyzer Thomas Chrapkiewicz 7 250 03-09-2010, 04:54 PM
Last Post: Adrian Godwin
  Classic Series Logic Board - Desoldering Temp ? John Robinson 7 298 09-17-2009, 09:36 PM
Last Post: Dan W
  Voyager series, logic PCA and keyboard PCA Geoff Quickfall 7 337 07-28-2009, 04:20 PM
Last Post: Eric Smith
  Technical question; HP-41CV logic PCA Geoff Quickfall 11 422 07-22-2009, 01:22 AM
Last Post: Eric Smith
  Signed Logic PCB Ignazio Cara (Italy) 4 215 03-18-2009, 05:58 AM
Last Post: DaveJ

Forum Jump: