[BC] Black Box circuits

[Kevin Tekel]

Robert Meuser wrote:
 > Xrays of numeropus black boxes was very popular at one time. I heard a
 > story that maybe Bob O could confirm that the black boxes in the
 > original 8000 had lead shields cut out in the pattern of the CBS eye.

In one of my CRL processors the epoxy in the "black box" chips has become
brittle enough with age that I can pop the caps off and peek inside.  All
I see are a bunch of resistors, capacitors, and diodes soldered together.

So that's the "magic" -- just a bunch of off-the-shelf components which
determine the thresholds, time constants, and such.  Combine that with a
whole bunch of TL072 op-amps and LM13600N's, and you can practically make
your own Spectral Energy Processor out of Radio Shack parts.