3 ms·

I just thought, if the idea isn't to reflect waves in a transmission line I'm going to be very disappointed. Now I'll have to leave the idea here: The speed of

I just thought, if the idea isn't to reflect waves in a transmission line I'm going to be very disappointed. Now I'll have to leave the idea here: The speed of transmission in long connections is measurable. The electromagnetic pulse travels with lightspeed and the big impedance mismatch at the end of an open line will reflect the most of the pulse. The proportion of the length to the time of transmission is almost 1/c in conductors, approximately 1 meter per 3 nano seconds. Using really long lines and switches on two sides of a closed loop, a game of reaction could be created. Kilometer long coils might not seem viable, and I don't know enough about wireless transmission to paint a nice picture, but induction introduced by coils of wire would delay a wave packet proportional to a 4th of the frequency of the wave. Edit: Bonus points for attaching a buzzing speaker each to either end :)

VLM 10y ago
Its a XY oscope so the highest freq signal required in the schematic appears to be 1200 Hz look at his clock gen system around page 17. In the "good ole days" you'd use IC opamps instead of transistor ckts to directly generate NTSC video signals at an analog level. There are a zillion google able links here is one: http://www.electronixandmore.com/projects/pong/index.html http://www.electronixandmore.com/projects/pong/index.html Or an example of digital logic driving a scope http://www.electronixandmore.com/projects/scopepong/index.html http://www.electronixandmore.com/projects/scopepong/index.ht... In the 80s or early 90s it was a "thing" in Z80 programming class to drive two DAC with a Z80 running some assembly language you wrote yourself to display a vector cube. Then you demonstrated your ability or lack thereof WRT trig and made the cube rotate. That took about two lab periods. There were a couple alternatives for that lab and I did a sampler where I had an A/D sample a bit less than 64K of sound at 8Ksamples/sec when a button is pressed and then it output the sample repeatedly. It was kinda fun.

VLM 10y ago

Its a XY oscope so the highest freq signal required in the schematic appears to be 1200 Hz look at his clock gen system around page 17. In the "good ole days" you'd use IC opamps instead of transistor ckts to directly generate NTSC video signals at an analog level. There are a zillion google able links here is one: http://www.electronixandmore.com/projects/pong/index.html http://www.electronixandmore.com/projects/pong/index.html Or an example of digital logic driving a scope http://www.electronixandmore.com/projects/scopepong/index.html http://www.electronixandmore.com/projects/scopepong/index.ht... In the 80s or early 90s it was a "thing" in Z80 programming class to drive two DAC with a Z80 running some assembly language you wrote yourself to display a vector cube. Then you demonstrated your ability or lack thereof WRT trig and made the cube rotate. That took about two lab periods. There were a couple alternatives for that lab and I did a sampler where I had an A/D sample a bit less than 64K of sound at 8Ksamples/sec when a button is pressed and then it output the sample repeatedly. It was kinda fun.