[HN Gopher] Mind Grenade (2019)
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       Mind Grenade (2019)
        
       Author : ggoo
       Score  : 64 points
       Date   : 2021-10-31 18:37 UTC (4 hours ago)
        
 (HTM) web link (www.fourmilab.ch)
 (TXT) w3m dump (www.fourmilab.ch)
        
       | 4gotunameagain wrote:
       | That's super cool, does anyone know where to find the schematic?
       | 
       | Creating one from the simulator code would do it, but he states
       | that it is an _" an abstracted version of the Mind Grenade"_ so
       | not sure if that means not exactly the original design
        
         | smoyer wrote:
         | 74LSxx parts are still available and will provide all the
         | logical functions described. An LM555 could able used as the
         | astable multi vibrator.
        
           | 4gotunameagain wrote:
           | Yeah I too did read the article, thank you. I know how to
           | make a functionally equivalent device from the provided
           | information.
           | 
           | I trust that the original inventor tried multiple variations
           | before settling on the final design, and was hoping to be
           | able to skip that
        
       | [deleted]
        
       | B1FF_PSUVM wrote:
       | > my wire-wrapped electronics works perfectly fifty years later
       | 
       | Good point there.
       | 
       | I once had to debug a (just-made) bad wrap that looked OK but
       | wasn't, and that was it for my troubles with wire-wrap.
        
       | YZF wrote:
       | Neat. Just a random thought about the random notes is that
       | picking notes from chords over some chord progression might
       | result in more interesting random music. You'd probably need some
       | sort of ROM lookup table to accomplish this in the original
       | design. You can still randomize which specific notes are being
       | played out of the chord (or the scale implied by the chord?)
        
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       (page generated 2021-10-31 23:00 UTC)