Trivia time!

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Trivia time!

Postby Karlsweldt » Sun Apr 19, 2015 5:59 am

A lot of us still remember the typewriter. But what key was found on most, yet is not found on the keyboard of any computer?
And on some typewriters, one key was double-duty. What did that one key equate to?
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Re: Trivia time!

Postby Karlsweldt » Mon Apr 20, 2015 9:06 am

No thoughts yet?
That "special" key on most typewriters had a "1/2" marking on it. When typing, if you missed a character, press and hold that key and then the missing character key. Better than all the retyping.
As to the double-duty key, some typewriters did not have a "1" numeral key. The lower-case "L" key substituted for it.
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Re: Trivia time!

Postby rascard2007 » Tue Apr 21, 2015 7:32 am

yep! if I remember correctly the 1/2 key was a kind of backspace

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Re: Trivia time!

Postby Karlsweldt » Wed May 20, 2015 5:09 pm

Here is a forgotten term for some, relating to automotive use.. "crash box".
Anyone remember?
How about "double clutching"?
F@H.. to solve mankind's maladies.. in our lifetimes!
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Re: Trivia time!

Postby Karlsweldt » Fri May 22, 2015 5:07 am

A "crash box" refers to the gears in a manual transmission that do not have a synchro mesh feature. Takes skill and practice to shift one, without 'grinding' some gear burger!
The term "double-clutching" also applies to a "crash box". When down shifting, you put the trans in neutral, let out the clutch, and rev the engine a bit. Then shift to a lower gear.
Thankfully, almost all manual transmissions today have a synchro mesh design on all gears except reverse.
F@H.. to solve mankind's maladies.. in our lifetimes!
Karlsweldt
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Re: Trivia time!

Postby rascard2007 » Fri May 22, 2015 6:54 am

here in havana there are a lot of pre 1959 cars still running, at tremendous enviromental costs, so I think we have a lot of crash boxez and double clutching here

happy week end

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"I have only come here seeking knowledge,
Things they would not teach me of in college"
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Re: Trivia time!

Postby Karlsweldt » Wed May 27, 2015 4:16 pm

Here is a term used in older TV sets.. "time pipe" or delay line. Anyone know what it is and does?
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Re: Trivia time!

Postby rascard2007 » Thu May 28, 2015 11:39 am

posibly an special cable in teh black and white channel of a color TV set that allow enough delay time so that the B&W and color signals arrive at the same time at the CRT
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Things they would not teach me of in college"
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Re: Trivia time!

Postby Karlsweldt » Thu May 28, 2015 4:16 pm

Older analog TV standards did not have enough bandwidth to carry all three color spectrum info, plus video and matrix audio.
So a 360° "pie" was created of the three basic colors. Two color spectrum info signals were sent, and the sum difference was created in the TV circuit. The two sent signals were carried in a "time pipe" or delay line, and all three signals merged at the proper instant for a complete image scan.
Oldest models had a paper tube, about 1/2" diameter and about 6" long, wound with fine wire as the delay line. Newer models used a synthesizer that was offset by a few microseconds.
F@H.. to solve mankind's maladies.. in our lifetimes!
Karlsweldt
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Re: Trivia time!

Postby Karlsweldt » Sun May 31, 2015 3:17 pm

Here is an oldie..
There once was a "miner's tea" that was renamed and is a popular "bubbly" today.
Who first made it? What was the original use for it?
F@H.. to solve mankind's maladies.. in our lifetimes!
Karlsweldt
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