http://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/ Engadget Comments for All-tube digital clock, seven years in the making http://www.engadget.com/media/feedlogo.gif http://www.engadget.com en-us Copyright 2012 Weblogs, Inc. The contents of this feed are available for non-commercial use only. Blogsmith http://www.blogsmith.com/http://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/http://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/Jun 26th 2006 4:34PMhttp://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/http://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/
sorry, had to be said]]>Jun 26th 2006 4:48PMhttp://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/http://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/Jun 26th 2006 4:51PMhttp://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/http://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/Jun 26th 2006 4:54PMhttp://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/http://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/Jun 26th 2006 5:24PMhttp://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/http://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/
It's not just that the output is digital (i.e. numbers) - but the reason the thing is so complicated is - and I'm guessing here - that it works like a tube computer - the earliest computers used thousands of tubes but were as digital as any PC. ]]>Jun 26th 2006 5:38PMhttp://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/http://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/Jun 26th 2006 5:40PMhttp://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/http://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/
Depends. Digital displays display digits.

(wow. That's a heck of an alliteration.)

It looks like this thing has analog electronics running a digital display. (Digital does not mean "performs binary calculations", although that's what people often think it means...)]]>Jun 26th 2006 5:43PMhttp://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/http://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/Jun 26th 2006 5:45PMhttp://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/http://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/Jun 26th 2006 5:47PMhttp://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/http://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/Jun 26th 2006 5:53PMhttp://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/http://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/
Know your history man! :) ]]>Jun 26th 2006 6:04PMhttp://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/http://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/Jun 26th 2006 6:36PMhttp://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/http://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/
shot in the dark, i suppose... maybe an enlightened one would care to explain it]]>Jun 26th 2006 6:36PMhttp://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/http://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/Jun 26th 2006 7:37PMhttp://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/http://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/375.6 Watts (!)
as result.
And yes, he rebuilt a TTL circuit, which is solely digital, if I understood him right (hard to read if you're not familiar with that stuff).]]>Jun 26th 2006 8:11PMhttp://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/http://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/
bummer]]>Jun 26th 2006 8:17PMhttp://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/http://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/25A+4A+10A=39A at 6.3V equals 245.7W (for heating)
0.470A at 190V equals 89.3W
0.075A at 2x180V equals 27W (I suppose both sources deliver 0.075A)
0.040A at 2x170V equals 13.6W (same as above)

This sums up to 375.6W
Though I'm maybe missing something.]]>Jun 26th 2006 8:45PMhttp://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/http://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/Jun 26th 2006 9:11PMhttp://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/http://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/Jun 26th 2006 9:13PMhttp://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/http://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/
These pictures are like a horror film as the camera zooms in on the details.

SO glad I speak another language. Or there might be bad dreams for me tonight. ]]>Jun 26th 2006 9:30PMhttp://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/http://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/Jun 26th 2006 10:20PMhttp://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/http://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/Jun 26th 2006 10:46PMhttp://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/http://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/Jun 26th 2006 10:58PMhttp://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/http://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/
A digital circuit can be made with tubes, tranzistors, a microchip (many tranzistors inside), or even relays. Other components more unusual can also be used, in general whatever has an input where a small amount of energy can control a much larger amount of the same kind of energy. This is what a tube a tranzistor and a relay have in common. But also a faucet could be used if it was designed to allow the high pressure water flaw to be controlled by a much lower pressure water flaw (instead from your hand) and the less linear it responds the better. Then the electrons would be replaced with water and the wires with pipes! You can even make a computer running software with ...faucets including RAM memory. And yes, such systems have been made and used successfully as the main computers in military aircrafts because these systems cannot be affected by radio-interference (electronic war) and radiation. These are hydraulic systems (with a sort of non-linear micro-faucets) with fluid and gas versions.

For a seven year long effort I would rather prefer to make a "smart" digital device using faucets in my backyard, running ..Water XP!
]]>Jun 26th 2006 11:51PMhttp://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/http://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/Jun 27th 2006 6:34PMhttp://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/http://www.engadget.com/2006/06/26/all-tube-digital-clock-seven-years-in-the-making/Sep 6th 2006 9:50PM