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SecretSquirrel
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Maybe the coolest digital clock ever

Mon Apr 15, 2019 6:46 am

I was out running errands this weekend and came upon this clock.

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I have a thing for clocks to begin with and this is a great intersection of tech and art. Unfortunately, it is a one of a kind. One of the stores customers built it. I believe they said it took him six to seven months to build. Still really want one.

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Re: Maybe the coolest digital clock ever

Mon Apr 15, 2019 7:32 am

Wow, outstanding job by whoever made this!
 
just brew it!
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Re: Maybe the coolest digital clock ever

Mon Apr 15, 2019 7:55 am

Agree, that's amazing. Looks like 100% discrete logic (no ICs). Seriously old-school!
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superjawes
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Re: Maybe the coolest digital clock ever

Mon Apr 15, 2019 8:16 am

just brew it! wrote:
Agree, that's amazing. Looks like 100% discrete logic (no ICs). Seriously old-school!

No ICs, nor any proper wiring board. Yeah, 6-7 months sounds right just for the build time.
On second thought, let's not go to TechReport. Tis a silly place.
 
just brew it!
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Re: Maybe the coolest digital clock ever

Mon Apr 15, 2019 1:08 pm

In a sort-of similar vein: https://monster6502.com/
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UberGerbil
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Re: Maybe the coolest digital clock ever

Mon Apr 15, 2019 1:19 pm

just brew it! wrote:
In a sort-of similar vein: https://monster6502.com/

Holy crap, that's equal parts amazing and hilarious. 60 kHz! 10W power draw! (Granted, most of that is the LEDs -- and that harkens back to the legitimate use-case for LEDs on your gear).

More hilarity
How big would the MOnSter 6502 be if it were made with through-hole parts instead of surface mount parts?
About 19 square feet (1.7 square meters).
How big would a 68000 microprocessor be at the scale of the MOnSter 6502?
Also about 19 square feet (1.7 square meters).
Are you going to make a 68000 next?
No.
How big would a modern CPU be at this scale?
The Apple A8X, found in the iPad Air 2, contains about 3 billion transistors. (This is comparable to the number of transistors in modern desktop computer CPUs as well.) At the scale of the MOnSter 6502, that would take about 885,000 square feet (over 20 acres or 8 hectares) — an area about 940 ft (286 m) square.

Getting back to that clock -- from the title I expected it was going to be something like a water clock that used fluidic transistors or something.
 
The Egg
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Re: Maybe the coolest digital clock ever

Wed Apr 17, 2019 10:12 am

just brew it! wrote:
In a sort-of similar vein: https://monster6502.com/

That's really cool. Too bad that it can only hit clock speeds of 60khz, because it would look really cool as a display, mounted on the wall with a completely broken-out Apple IIe or NES; blinking away as it processes data.
 
UberGerbil
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Re: Maybe the coolest digital clock ever

Wed Apr 17, 2019 12:46 pm

The Egg wrote:
That's really cool. Too bad that it can only hit clock speeds of 60khz, because it would look really cool as a display, mounted on the wall with a completely broken-out Apple IIe or NES; blinking away as it processes data.
...while playing Choplifter or Mario.

On the other hand, if it was running anywhere closer to the 6502's real ~1MHz clockspeed, those LEDs would all appear to on all the time.
 
The Egg
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Re: Maybe the coolest digital clock ever

Wed Apr 17, 2019 1:19 pm

UberGerbil wrote:
The Egg wrote:
That's really cool. Too bad that it can only hit clock speeds of 60khz, because it would look really cool as a display, mounted on the wall with a completely broken-out Apple IIe or NES; blinking away as it processes data.
...while playing Choplifter or Mario.

On the other hand, if it was running anywhere closer to the 6502's real ~1MHz clockspeed, those LEDs would all appear to on all the time.

Naa, just multiply the blinking threshold (the amount of instructions required to cause a blink) by 16.66 :P
 
just brew it!
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Re: Maybe the coolest digital clock ever

Wed Apr 17, 2019 2:23 pm

The Egg wrote:
UberGerbil wrote:
The Egg wrote:
That's really cool. Too bad that it can only hit clock speeds of 60khz, because it would look really cool as a display, mounted on the wall with a completely broken-out Apple IIe or NES; blinking away as it processes data.
...while playing Choplifter or Mario.

On the other hand, if it was running anywhere closer to the 6502's real ~1MHz clockspeed, those LEDs would all appear to on all the time.

Naa, just multiply the blinking threshold (the amount of instructions required to cause a blink) by 16.66 :P

The LEDs are wired directly to the internal data buses. There's no "threshold" to tweak.
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