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joesnotes
United States
Registrace 8. 10. 2006
FPGA design in MS-DOS Nostalgia (Xilinx / OrCAD)
How FPGA design was done in the early 90s. This shows how you use OrCAD SDT and Xilinx XACT to develop FPGAs on your MS-DOS PC. @EEVblog, @BigClive, @The8BitGuy watchers may enjoy...
zhlédnutí: 2 760
Video
Vacuum tube generates electricity!
zhlédnutí 1,5KPřed 4 lety
Vacuum tubes generate electricity from the heater.
Unusual Clock from 35mm Film
zhlédnutí 697Před 4 lety
Here's an idea for an unusual clock face based on 17th century Night Clocks. Clocks of this sort are known as Wandering Hour Clocks. blog.britishmuseum.org/time-to-shine-a-17th-century-night-clock/ en.wikipedia.org/wiki/35_mm_movie_film
Verilog always blocks and assignments
zhlédnutí 4,1KPřed 5 lety
How to code in Verilog HDL: always blocks and blocking vs. non-blocking assignments.
DIY capacitive pressure mat for Arduino Halloween sequencer
zhlédnutí 3,1KPřed 6 lety
A DIY capacitive pressure mat which can be used by an Arduino to trigger a Halloween sequence
Panel Punch vs. Step Drill Bit
zhlédnutí 1,1KPřed 6 lety
I compare a Futaba Engineer No. 895 Chassis Punching Tool Set with step drill bits.
.1" Headers: Crimp vs. IDC (MTA-100)
zhlédnutí 6KPřed 6 lety
I compare assembly time between crimp headers and MTA-100 IDC headers.
Single Board Relay Computer
zhlédnutí 235KPřed 7 lety
A longer video featuring rev. 3 of my Single Board Relay Computer (Relay Trainer). See relaysbc.sourceforge.net
Atari BASIC maze generator
zhlédnutí 1,3KPřed 8 lety
A maze generator in Atari 800 basic. The recursion is recorded in the maze itself as arrow characters.
atari 800 rotating cylinder demo
zhlédnutí 693Před 8 lety
Rotating cylinder demo for Atari 800- see github.com/jhallen/atari-demo for the source code.
Acoustic Delay Line Memory
zhlédnutí 8KPřed 10 lety
Here is a demonstration of a 10 bit recirculating digital acoustic delay line memory: eight of the bits are stored as sound waves in the air between the microphone and speaker (the other two are in the flip-flops of the circuit). This is similar to the mercury acoustic delay line memory of early computers like UNIVAC-I, but using air instead of mercury so that you can hear the bits.
RelayRingCounter
zhlédnutí 1,3KPřed 11 lety
A ring counter test of the flip flops used in my relay computer. Check this out: relaysbc.sourceforge.net/devlog.html
Relay Counter
zhlédnutí 4KPřed 11 lety
A counter based on the flip-flops used in my relay computer. See relaysbc.sourceforge.net/devlog.html
Memory game on my relay computer
zhlédnutí 4,6KPřed 11 lety
This is a Simon-like memory game: it gives you a pattern of lights, and you have to repeat it, then the pattern length is increased by one. You keep going until the pattern is too long for you to remember. Check out: relaysbc.sourceforge.net
Euclid's algorithm on my relay computer
zhlédnutí 3,2KPřed 11 lety
Euclid's algorithm on my relay computer
really nice machine love your design
Imagine a whole server running on relay CPU
😮😮😮😮
Can you build a cool case for it
Curious what value you used for R204 (holding resistors), and if you had to "swap relays around" to get it to run.
I would love to bring this on a math test
what are all those ics doing there huh?
AMOG US
sick metronome
Most of the time used was to strip the wires. Buy yourself a proper crimper with an end stop. Takes 1-2 sec and you don't need to measure the wires every time. Also when crimping the pins, you first put the pin in the crimping tool and then insert the wire. All the problems I see are with the user.
gta 5 kaldırır mı
Bravoooooooooooooooooooooo!!!!
ST:TOS computer?
sounds like the computer from the original Alien movie :) i like it
love the design
u got this recomended 10 years later
Is it possible to made coder and decoder with relays?
it looks like Kone LCE
I love videos like this. Considering how complicated today's computers are, this is very understandable
광 제어 cpu도 가능 한가요??
amogus computer
wow, mechanical transistors
such pleasing clicks
Very impressive!
COOL!
Pls schema
This video is 10 years old, i doubt they still even remember this video, let alone give you a schematic
It boggles my mind how fast modern CPUs are, I mean can you imagine counting at a frequency of 5GHZ?
Its itsane to think about how many little swicthes are in a CPU, and they can change its state 5 BILLION times per second... Like wtf
@@ProWajxxx Per switch, of which you then have up to 20 billion
I mean I can do that easily but I'm built different
And then you start thinking about how there are actually more processors (cores) doing the work, so multiply that by 4 or 8 or much more.. and then that it's much more complicated than just counting... and then ALL the logic going on in the whole system, the disks, ram, graphics, all tuned in and know what to do, interacting with one another... man it is fascinating, knowing you'll never be able to understand it all, knowing you can spend your whole life studying one part of it and there will still be lots to learn.. elegantly divine and utterly humbling
Now I'm imagining all our CPUs constantly emitting the most insanely high pitched whine, but none of us can hear it.
nice.
Me quito el sombrero. ¡Qué chulada!
I simulated a relay computer using an FPGA, really cool project
what is making the sound?
Not a computer, it’s a controller
This weird frame aspect ratio is called “anamorphic”. The lens on the projector is designed to stretch the picture horizontally to fill the screen. This was designed to fit wider frames across the film without losing vertical resolution.
Relay computer made on integral circuits. Nice... How to make it?
Brilliant, absolute genius!
damn my guy you put a lot of work into that
man iirc early computers had interfaces similar to this without an 8 segment display. just lights in specific labeled places
Sounds like my steam engine in childhood days😂
that relay clicking 🤤
Those relays are quite cheap and I buy them 20 at a time - I might actually have enough to make something simpler, but similar.
Relay calculator Vilnius, made in USSR in 1968. czcams.com/video/sJFjzK7Ecng/video.html&ab_channel=RedInnovations
Is this some sort of kit? That would be so awesome to count numbers all day!
Automatic center punch, stepped drills, deburring tools and hole punches - all familiar too me, got all of these in my lab now that I'm doing more of chassis work than before, I'm looking for nice consistent holes that don't take excess effort to make, which was not really the thing with stepped drills. It was possible with heptal or noval sockets, but octal was way too much of a hassle to make. I have the Futaba 895 kit, there were a bunch of versions with different packages. Mine has a metal case, and I've also seen a zipped faux leather bag version. Yours is yet another one. I'm planning on getting a 10x18x5.5mm thrust ball bearing to add between the bolt and main cyllinder, as it's an interface where most friction happens even when oiled. That should make it a lot easier to cut through steel. Using a 12mm wrench helps a lot already, compared to the short-ish rod the kit comes with. My other punch (28.4mm - for octal sockets) has a bearing, I wouldn't even imagine cutting through 1.5mm thick stainless steel without one. It's hard enough already. I use a ratchet wrench with that. Electric or pneumatic impact wrenches might do the job without getting too tired, and I know that some chassis punch sets come with a miniature hydraulic press. Not sure how that would work with some heavy work like 2mm stainless steel.
I know the guy who makes those 100 and 156 headers
Beautiful, instantly I get 34 years younger. I worked with this system back in 1989 on my university diploma work. The LCA chip used was 2064, and I modeled different bitstream CRC standards. In addition to tools that you showed I used Orcad simulator too. Development PC was 8088 with 1MB of RAM, and 20 MB HD.
Reminds me when we simulate a microprossesor using a microcontroller... Neat.
I love the fact that you went into detail about the instructions and block diagram.
Ah gawd the heavenly noise.
Wow. That is something. Useful. Seriously all of the modern education teaches nothing.
i would love to see this done with mercury contactors... with a few hundred amps behind it... use big steel bars glowing as the display :) except it would take an hour or so with their repetition rates...