Posted on 05/30/2008 10:32:58 AM PDT by Zionist Conspirator
Strange test pattern. I didn’t know they had widescreen back then. :)
Makes sense. Persistence would have to be short otherwise you’d have a lot of “ghost image” overlay. Sorry, too much time with the old-style graphics terminals, which for vector stroke graphics depended on high-persistence phosphors (although there was an “erase” key, how did that work?).
Captain 20 was on channel 20 and was a nerdy looking guy with fake Spock ears and futuristic uniform; he played even worse stuff than Captain Chesapeake -- think Ultraman and the like.
'Full Disclosure' is not a show, but a disclaimer I sometimes put on my posts.
Sorry to say, I do not remember Buddy Dean.
The highlight of Captain Chesapeake was the screenshot of the waters of the Chesapeake Bay behind him, artificially rocked around to try to make it look like the in-studio set was bobbing aboard a boat. One day the folks moving the film of the water got a bit carried away, and it turned upside down for a moment.
Cheers!
There were vector graphics screens with short to medium persistence, but they needed constant refreshing from a digital memory of the currently defined strokes.
Tektronix invented an indefinite-persistence tube; the phosphor wasn’t really indefinite persistence, but there was a special electrical screen behind the phosphor that got charged wherever the phosphor was written by the electron beam, and then was magically able to continually produce electrons which moved forward to the phosphor, thus maintaining the illumination wherever the beam had written. A quick pulse of the appropriate voltage erased the electrical screen and thus erased the image being produced on the phosphor.
Originally used in the Tek storage oscilloscopes ca. 1960, these tubes were later used in a series of vector-graphic computer terminals and small standalone computers.
I played a very early “lunar lander” on a Tek 4051, which had a Basic interpreter in it. The lunar landscape would be created at random and then written on the tube. The lander itself would be portrayed with a low-intensity non-storage beam strength and updated as fast as possible. Its position of course was computed in real time in accordance with physical laws and your inputs through the keyboard. Once you landed—crash or otherwise—it would be written permanently, until you asked for a new game or hit a manual erase.
One of my favorite parts of CK were the little musical features (accompanied by puppets or paper cutouts). Remember Angus MacFergus MacTavish Dundee? Or Sean Sean the Leprechaun? Or Herkimer the Lonely Doll (sung by Sterling Holloway)? Or Alfred the Air-Sick Eagle? Or going to the Palace with Alice to see the Changing of the Guard? Or the Two-Penny Piper ("all the children love him so / for two pennies he will blow / a tune of romance / so hey can dance")? And something that always made me tear up--the old puppet maker whose puppets came to life.
BTW, I got my love of classical music from Bunny Rabbit playing Mozart's Alla Turca Allegretto and Chopin's Black Key Etude!
If you're interested, YouTube has a video of the Banana Man's last appearance on Cap'n 'Roo.
Never mind. We're all having so much fun!
As long as the liberals are into turning back the clock to pre-industrial times, do you suppose they might consider bringing back the Fifties?
We had a Tek "storage" scope that I think worked on the same principle. I remember asking their local sales engineer how their scope could "capture" nanosecond-range rise times, and he spilled the beans about how it wasn't digitally stored, but the voltage was stored on a grid that was read out onto the screen. Worked pretty well except as time passed it got a little ragged-looking, especially if you fiddled with the intensity dial. It also had a "persistence" dial that could help you keep the image on the screen until you got your scope camera set up to take a picture of the display. Them were the oooooold days...
As long as the liberals are into turning back the clock to pre-industrial times, do you suppose they might consider bringing back the Fifties?
^^^
Oh, heavens, no! What? And let all of those family values run rampant again?
Sorry to say, I do not remember Buddy Dean.
&&
Why, then, you are just a child!! :-)
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