Oh wow, that came together nicely. The TVT is a thing of beauty for its primitive design structure achieving so very much, but man they're finicky beasts. Well done recreating one!
@@artemkalinchuk OK, this is why we have the keyboard encoder married to the keyboard (that hadn't seemed right). I'm guessing by the pin count that is a parallel connection so we would need to implement a UART to connect to a modern computer which would also be pretty cool. Play a bit of "Colossal Cave Adventure". I must go back and watch your keyboard video.
As I mentioned in the video, changing the oscillator was the first thing I did and it didn't seem to make much of a difference so my guess is that an oscillator close to the specified frequency should work but then again, there are some parts of the device that require strict timing so I'm not 100% sure.
Hi Artem, great ! But beside looking backward I would find it more interesting to connect your self built computers to modern monitors (USB oder TB, HDMI) :-)
Clarification: C4 of the Cursor board increases the LOW time of the circuit, as shown on the oscilloscope. In the video I said “HIGH”.
Its nice to see everything come together.
Oh wow, that came together nicely. The TVT is a thing of beauty for its primitive design structure achieving so very much, but man they're finicky beasts. Well done recreating one!
I've waited since I was a kid to see this actually built! Amazing! Well done!
I am envious of that TV
You're gonna need a bigger wrist support! ✌️😉
Beautiful work!
Great work debugging this build, it's awesome to see it fully functional!
Great to see this history come to life. Feels like we're still a long way from hooking this to a period computer though.
It’s actually as simple as connecting an output port to the keyboard input of the TVT (with a small delay circuit).
@@artemkalinchuk OK, this is why we have the keyboard encoder married to the keyboard (that hadn't seemed right). I'm guessing by the pin count that is a parallel connection so we would need to implement a UART to connect to a modern computer which would also be pretty cool. Play a bit of "Colossal Cave Adventure". I must go back and watch your keyboard video.
You should really attach the green power cord wire to the metal case for safety. Like put a solder lug on it and place under one of the keyboard nuts.
I plan to do so 😊
Maybe I missed it, but do you think replacing the crystal with the reprogrammable oscillator have any effect?
As I mentioned in the video, changing the oscillator was the first thing I did and it didn't seem to make much of a difference so my guess is that an oscillator close to the specified frequency should work but then again, there are some parts of the device that require strict timing so I'm not 100% sure.
Hi Artem, great ! But beside looking backward I would find it more interesting to connect your self built computers to modern monitors (USB oder TB, HDMI) :-)
Maybe I’ll do that someday. It’s as simple as using a composite to HDMI converter.