[rescue] [vcf-midatlantic] vacuum tube computers

Dave McGuire mcguire at neurotica.com
Mon Dec 4 21:44:52 CST 2017

On 12/04/2017 10:35 PM, Evan Koblentz wrote:
>>>> I'll throw in another example: volume knobs. Many (most?) car
>>>> stereos still have knobs you turn to adjust the volume.
>>> They may no longer be analog. My wifes car volume control knob seems
>>> to change
>>> in discrete steps so we have the choice of a little too soft or a
>>> little too
>>> loud due to the step size.
>> They haven't been analog for a very long time.
> Zoinks! Foiled again!

  Yep.  In fact, that change may be a very good construct for teaching
the difference between digital (discrete systems) and analog (continuous


Dave McGuire, AK4HZ
New Kensington, PA

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