Cinema-Scope

RE: Cinema-Scope

amgalbu — Sun, 18 Jul 2021 12:17:45 GMT

A really great project. Thanks for sharing!

RE: Cinema-Scope

zst123 — Sat, 17 Jul 2021 07:32:58 GMT

Wow, amazing that you did it all with discrete components! I have done such a project before, but it's an "easier" way using a powerful STM32 microcontroller, with the 2 built-in DAC peripherals for the X and Y oscilloscope probes.

RE: Cinema-Scope

javagoza — Fri, 16 Jul 2021 08:19:48 GMT

Very interesting! It may seem of little use but it reminds me of a project that I was commissioned many years ago for an exhibition of works by Warhol. It was a kiosk that took pictures in real time and displayed them on a screen as a 2 x 2 matrix transformed like in the famous Warhol work Shot Marilyns. Posterized, colored and with four different backgrounds: red, orange, light blue, sage blue. In addition, the user could ask the kiosk for a paper copy. It seems like useless fun but it is something that attracts people, like a house of mirrors in a funfair.

I think Cinema-Scope has a very high potential to attract people both to an stand at an electronics exhibition or to the window of an electronics store, if there is still any traditional electronics store left [View:/resized-image/__size/16x16/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-9fcf470d-af6a-4407-b4bc-7fc8c39f3ff0/contentimage_5F00_4027.png:16:16]

RE: Cinema-Scope

fmilburn — Thu, 15 Jul 2021 01:47:37 GMT

Really cool :-)

RE: Cinema-Scope

phoenixcomm — Mon, 12 Jul 2021 21:45:08 GMT

[mention:193ac2434c814a24b46635a2210baec1:e9ed411860ed4f2ba0265705b8793d05] Doug, you forgot VisaVison (Sameo) and then 70mm, was breathtaking!

~~Cris

RE: Cinema-Scope

dang74 — Mon, 12 Jul 2021 16:56:25 GMT

Impressive work. I look forward to seeing how it will display on an analog scope. Although the signal is noisy in its current form, I kind of like this aesthetic.

RE: Cinema-Scope

kmikemoo — Mon, 12 Jul 2021 15:10:58 GMT

[mention:193ac2434c814a24b46635a2210baec1:e9ed411860ed4f2ba0265705b8793d05] That's awesome. As a boy, my Dad shared a story of how he and his sailor buddies (all communications guys) watched a World Series game on an oscilloscope. I was amazed. Actually, it was 2 scopes because he said the first image was inverted so they ran it into another scope to make the picture right.

RE: Cinema-Scope

shabaz — Sun, 11 Jul 2021 22:43:37 GMT

Hi Doug,

Nice effect : ) The binary output makes for a really nice effect in the video.

I hadn't realized the LM1881 was still sold, but just saw it's still very much an active part.

RE: Cinema-Scope

genebren — Sun, 11 Jul 2021 15:56:07 GMT

Very cool Doug!

RE: Cinema-Scope

robogary — Sun, 11 Jul 2021 15:51:37 GMT

very cool . The video is a good complement to the written explanation.

Do you have a one line of the setup ?

Your schematic looks like USB provides the 5V and the analog video is an input.

Where does the analog video to the composite display screen come from ? Thanks G