[time-nuts] Local Solar Time Clock

[Mike Naruta AA8K]

On 14-01-19 03:20 PM, Chris Albertson wrote:
> My feverish brain now cranks out that all we need is a electromechanical
>> WWVB receiver, thus no active electronic parts. That would be a nice little
>> challenge.
>>
>>
> That could work.  I remember seeing an only World War II vintage teletype
> machine.  It would print test from an HF receiver. Given the technology of
> the day it had no software inside
>
>   The way it would work is you spin a disk at a nominal one rev per second
> and disk has electrical contacts on it that make a bit stream.   Phase lock
> that with WWVB.   So you control the motor speed.
>
> Actually I think you'd be better off using the 60KHz carrier.  Again
> limiting yourself to only 1940's technology, I think you could build a
> local oscillator that would phase lock to WWVB's carrier, and from there
> you control the motor speed and  and then you use the spinning disk to
> decom the bits.
>

My first home personal computer (1964) was the Digi-Comp, no 
electricity, but definitely had software.  Stored program, 
clock, display, conditionals...

In the 1930s the Norden bomb-sight had software.

The Jacquard loom had software.


Perhaps the "no software" requirement should be refined.