Author Topic: CRT clock  (Read 9268 times)

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Offline rthorntn

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CRT clock
« on: January 02, 2014, 12:08:22 am »
 

Offline SpectrHz

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Re: CRT clock
« Reply #1 on: January 02, 2014, 07:02:20 am »
I like it  ;D though I am a sucker for anything with an evacuated glass tube that glows, or gas filled, for nixies :) but this kit looks nice and well made when assembled, a little pricey but not too bad.
My blog, Maker, Engineer, Physics girl

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Offline EEVblog

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Re: CRT clock
« Reply #2 on: January 02, 2014, 09:16:39 am »
That's pricey for just a bare PCB kit.
 

Offline DrLuke

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Re: CRT clock
« Reply #3 on: January 02, 2014, 09:33:11 am »
Indeed, I had to look twice when I saw that price.
 

Offline Kjelt

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Re: CRT clock
« Reply #4 on: January 02, 2014, 11:38:35 am »
Friend of mine designed and built one last year, only with characters not the nice analog version. It can be difficult to get the nice small crt's , so first try to score those before you start.
 

Offline dexters_lab

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Re: CRT clock
« Reply #5 on: January 02, 2014, 12:04:06 pm »
i might have been tempted but swmbo is getting me a nixie clock kit for my birthday >:D
"A common mistake people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools." - Douglas Adams
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Offline GeoffS

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Re: CRT clock
« Reply #6 on: January 02, 2014, 12:04:22 pm »
A much cheaper option is this one:

http://web.jfet.org/vclk/

PC board gerbers provided.
 

Offline DonRon

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Re: CRT clock
« Reply #7 on: January 02, 2014, 12:06:27 pm »
And here is a German dealer:

http://www.die-wuestens.de/r5.htm

 

Offline Kjelt

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Re: CRT clock
« Reply #8 on: January 02, 2014, 01:04:05 pm »
That analog clock will terribly burn in the phosphor if it runs 24/7
 

Offline DonRon

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Re: CRT clock
« Reply #9 on: January 02, 2014, 01:11:17 pm »
That analog clock will terribly burn in the phosphor if it runs 24/7

Agree! That's the reason I did not buy one until today.
But I love the look of these clocks - looking really great.

Cheers and Happy new year,

Ronald
 

Offline Kjelt

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Re: CRT clock
« Reply #10 on: January 02, 2014, 02:03:11 pm »
They definitely look cool and retro  8)
Happy new year to you too.
 

Offline SeanB

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Re: CRT clock
« Reply #11 on: January 02, 2014, 02:33:51 pm »
I have a nice small TV CRT from a Sony viewfinder, wonder if I can use that magnetic system to make a clock, or does anybody want it.
 

Offline TopLoser

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Re: Kickstarter: oscilloscope clock kit
« Reply #12 on: January 02, 2014, 08:40:48 pm »
$145 on Kickstarter or $100 directly from his website....

http://www.oscilloscopeclocknixiecrt.com/Kit.htm

Hmmm... am I missing something?
 

Offline Polossatik

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Re: Kickstarter: oscilloscope clock kit
« Reply #13 on: January 03, 2014, 11:02:52 pm »
$145 on Kickstarter or $100 directly from his website....

http://www.oscilloscopeclocknixiecrt.com/Kit.htm

Hmmm... am I missing something?

$45 ?  8)

kickstarter one is supposed to be a "new" version with better psu (it at least is now advertised as 220v capable)

And here is a German dealer:

http://www.die-wuestens.de/r5.htm

damn that site hurts the eyes..
« Last Edit: January 03, 2014, 11:07:36 pm by Polossatik »
Real Circuit design time in minutes= (2 + Nscopes) Testim + (40 +120 Kbrewski) Nfriends

Testim = estimated time in minutes Nscopes= number of oscilloscopes present Kbrewski = linear approx of the nonlinear beer effect Nfriends = number of circuit design friends present
 

Offline Stonent

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Re: CRT clock
« Reply #14 on: January 04, 2014, 06:26:57 am »
Quote from: Assembly Instructions
Now unplug the power cord , and insert the IC marked 12f629 into socket U6.

Quote from: Assembly Instructions
Unplug the power again , and insert the chip marked "7528" ( 20 pin ) into U3, noting the proper orientation, and the biggest chip marked 18f26K20 into U1.

Do you really need 2 PICs for this?

The larger the government, the smaller the citizen.
 

Offline c4757p

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Re: CRT clock
« Reply #15 on: January 04, 2014, 06:57:57 am »
No longer active here - try the IRC channel if you just can't be without me :)
 


Offline calexanian

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Re: CRT clock
« Reply #17 on: January 05, 2014, 12:41:53 am »
How long before just a plain old analog clock will be considered "Bring Back" worthy? I remember the first time a kid asked me to read a analog clock for her... We have lost as a society...
Charles Alexanian
Alex-Tronix Control Systems
 

Offline GK

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Re: CRT clock
« Reply #18 on: January 05, 2014, 03:03:19 am »
Looks to me like a good way to burn up rare cathode ray tubes. Maybe a switch could be incorporated to cut off the cathode current when you're not home?
I have a nice collection of DG7-32, 2AP1's and a couple dozen other CRT's ranging 1" diameter at about 5" diameter. Don't think I'll be making a clock out of any of them.
« Last Edit: January 05, 2014, 03:05:51 am by GK »
Bzzzzt. No longer care, over this forum shit.........ZZzzzzzzzzzzzzzzz
 

Offline Legit-Design

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Re: CRT clock
« Reply #19 on: January 05, 2014, 04:42:04 am »
I think these clocks need screensavers. Maybe a bouncing clock like in the old days?
 

Offline Stonent

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Re: CRT clock
« Reply #20 on: January 05, 2014, 06:05:00 am »
I think these clocks need screensavers. Maybe a bouncing clock like in the old days?

Flying Toasters!
The larger the government, the smaller the citizen.
 

Offline Kjelt

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Re: CRT clock
« Reply #21 on: January 05, 2014, 03:27:51 pm »
With a motor physically rotate the CRT from left to right  8)
 

Offline snoopy

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Re: CRT clock
« Reply #22 on: January 06, 2014, 04:21:58 am »
That PCB... :wtf:

Oops, wrong picture

Nope, think I've got it now. >:D

I was going to say something about this but I didn't want to rain on his parade.

It looks like he got his 5 yo to lay it out or maybe it's someone who used to use Bishop graphics back in  the 70's and this is his first entry into pcb layout using software.

Anyway you've got to give him points for trying. I like to see people having a go ;)
 

Offline daveatol

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Re: CRT clock
« Reply #23 on: January 06, 2014, 12:12:02 pm »
I remember the first time a kid asked me to read a analog clock for her... We have lost as a society...
I know a few of 20 and 30 year olds that can't read a clock, or have to count around the hour marks with their finger.
 

Offline rolycat

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Re: CRT clock
« Reply #24 on: January 06, 2014, 06:39:08 pm »
I remember the first time a kid asked me to read a analog clock for her... We have lost as a society...
I know a few of 20 and 30 year olds that can't read a clock, or have to count around the hour marks with their finger.

Reminds me of an old Dave Allen sketch where he tries to teach a child to read a clock:

Quote
Now, there are three pointers, called hands. The first hand is the hour hand, the second hand is the minute hand, and the third hand is the second hand...

So, its twelve o'clock, and the hands are at the top. Then the minute hand moves round until it reaches the one. That one is five. Two is ten, three is fifteen, four is twenty, five is twenty-five, six is a half...

Now, be a good boy and learn how to read the clock, and I'll buy you a digital watch.
 


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