[BC] Black Box circuits

[Harold Hallikainen]

> At 07:29 AM 7/6/2006, you wrote:
>>From: Kevin Tekel <amstereoexp at yahoo.com>
>>Subject: [BC] Black Box circuits
>>To: broadcast at radiolists.net
>>Message-ID: <7.0.1.0.2.20060705234901.047e49c8 at oldradio.com>
>>Content-Type: text/plain; charset="us-ascii"; format=flowed
>>
>>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.
>
> The "magic" is innovative circuitry that was tuned to give the processor a
> competitive sound and that the company did not want competitors to copy
> easily. This circuitry is built with normal electronic components. What
> did
> you think was in there -- pixie dust?


Maybe not pixie dust, but how about pigeon pixels? See
http://www.google.com/technology/pigeonrank.html

Harold

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