From: kevin.bowling@kev009.com   
      
   On 6/2/24 06:11, Louis Ohland wrote:   
   > No.   
   >   
   > Required Instrument: HP165x, 166x, 167x, or 165xx family of logic analyzers   
      
   I've got one of these.  Goal is to eventually probe the MCA bus,   
   particularly some of the RS/6k frame buffers.   
      
   I'm not sure how complex the device is, I guess there is the board   
   itself which should be relatively simple to replicate it just mentions   
   "bus loading".  It also came with a disk that gave the LA some knowledge   
   of the MCA mnemonics.   
      
   > Bus signals supported: All MCA ™ - 32 bit slot signals except slot   
   > specific signals (e.g. -CD-SETUP) and audio.   
   >   
   > Part Number   
   >      ALD-1M for HP1650, 52, 16510, 511, 540   
   >      [ HP P/N ALO60003 ]   
   >      ALD-2M for HP1660, 62, 16550, 555, & later   
   >      [ HP P/N ALO60004 ]   
   >   
   > Note that there is an HP P/N. There is no chance that HPE has anything   
   > on this.   
   >   
   >   
   > Kevin Bowling wrote:   
   >> Anyone ever seen one of these in the wild?   
   >>   
   >> https://web.archive.org/web/19971027020324/http://www.ald.com/ald/mca.html   
      
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