Nebulus' propeller clock has inspired me to build something similar. Without giving away the concept, I need some help. I'm looking for a long, narrow display...
Hi Morris ! ... Ahem ... ... my first Z80 clock prototype was *entirely* built from what I found in various boxes and in some crapped ISA modem card. Even the...
If your homemade clock is powered from a wall ward or what ever, not batteries ofcourse. I just dont understand why you use crystals to make the 1 sec pulse ? ...
... similar. ... a ... Would something like one of the magic eye/tuning indicator tubes recently discussed here be adequate ? By their nature they are very ...
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David Forbes
dforbes@...
Jul 1, 2002 2:54 pm
... Thomas, Yes, the mains frequency is quite accurate, and is the best to use if it is available to the logic circuits. However, there are two types of power ...
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David Forbes
dforbes@...
Jul 1, 2002 3:21 pm
... Cory, That is probably an RF downconverter (tuner) to allow the direct frequency readout of RF signals. HP made a set of plugins for the 524 counter that ...
... Ah, but most are not well filtered: small, cheap capacitor. So there is ripple and it can be extracted. First, put a diode in series with the DC input...
You need to have a little transformer in the clock which will transform the low AC voltage from the wall wart to a high enough voltage for the Nixies. You...
... rare ... in ... timepiece. ... He probably saw your nifty watch on the net and was inspired to refine the idea! Jim ps. the writeup in IEEE Spectrum was...
I use a switching power supply for converting 110-220VAC line voltage to 5V and 180V in my Nixie clocks. It's a lot like the switcher in a typical external...
... ? ... if it is ... power ... signal is ... the ... The advantage of an all tube digital Nixie clock is that you have the mains frequency available at every...
It's just not practical to use a transformerless power supply with TTL chips, they draw an order of magnitude too much power. If you think that transformer...
... light ... I posted a photo in the group photos section a couple of weeks ago, the title is "Current Indicator Tube". The general construction of this tube...
I uploaded copy`s of several pages of the Engineering Journal from Maxim, on the `file` site, as a PDF file. All of you who have ever ordered free samples from...
... That's true if you have an absolutely reliable power supply. It only takes one blackout and you're back to square one having to reset the clock anyway. I...
... LS chips are usually direct replacements for conventional TTL chips and draw much less power - there is a standard percentage but I can't remember what it...
Hi Peter, ... Ahem ... ... my first Z80 clock prototype was *entirely* built from what I found in various boxes and in some crapped ISA modem card. Even the...
Yes, it should be a very noticeable reduction in heat. The power consumption of the whole clock is probably still so low that you won't notice the difference...
... I am designing a clock for the case of ZM1040s I have and it will use the mains for primary time base, auto-adjusting to 50 or 60 Hz (no jumper), and will...
Cory-- (and whoever else is interested in this monstrosity) I updated the pics of my tube clock on my web page. Go to: http://www.mindspring.com/~jforbes2/ ...
I have not seen one of these in the flesh (glass) but this seems to be where you are headed: http://www.vectorelec1.narod.ru/IV-26.htm My gut feel is that this...
Gotta' love them blue phosphors... (Usually dim but fast, not unlike me!) My gen-u-ine Digivac was so dim as be amazing. (poisoned cathodes?) A "worthy...
I covet your ZM1040s... ... From: Raymond Weisling [mailto:fire.mountain@...] Sent: Monday, July 01, 2002 20:23 To: NEONIXIE-L@yahoogroups.com Subject:...
Your message got my curiousity about power consumption. My 6 tube, Z5680 draws 110 mA from the 120 V AC mains. This is the current feeding the primary winding...
... I think we have a similar thing here in the USA. I remember my sister making some artificial flowers out of thin wire shapes and then dipping them in some ...
