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Re: How to drive Tubes
Morgan Gangwere
On Sun, 2010-01-03 at 09:05 -0600, Brian P. Poi wrote:
[snip] I've seen the 555+Inductor hack used in a few clocks and its what I'm using; Here's the link: So far it seems to do a good job (I'm only using a 50uH inductor as thats What I've Got) and its pretty modular. I dont know what IN-12's use for power, but as long as its <10mA for however many you want to drive you should be fine. -- Morgan Gangwere ``If you're going to use high voltage, at least do it safely: Wear staic free socks.'' (Author Unknown) |
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Re: How to drive Tubes
"Brian P. Poi"
From: NEONIXIE-L@... [mailto:NEONIXIE-L@...] On
Behalf Of Allan Sommer Hey guys, who are you? ...Hello and welcome. For $9.95 you can't go wrong with John Taylor's part number 1364: Getting camera flashes to work is tricky; with this you need just one additional resistor you can pick up at Radio Shack. Just a happy customer. Brian |
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Re: How to drive Tubes
Bill Esposito
[edited by A.J. - please trim quoted material]
On Sat, Jan 2, 2010 at 7:33 PM, Allan Sommer <sommer.allan@...> wrote: Thanks for your help john. I just found out that my tubes are in12 and not I just received and assembled my second HV PS from neonixie today (the last one went into a clock that was given as a gift over xmas) and used it to drive an IN-12A that was sitting in my parts bin for a few years. It works like a charm. I highly recommend simply picking up a power supply designed to power nixies -- it'll make your life much easier. [Non-text portions of this message have been removed] |
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Re: How to drive Tubes
"franklinmknight"
I've actually bought and used the Ogi Lumen power supply and, although relatively expensive, it does the job and is incredibly reliable. Plus, if you're horrible with a soldering gun like I am, it's preassembled, so no messy solder contacts and no burning of flesh. Just thought I'd throw in my two cents.
Cheers |
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Re: How to drive Tubes
John Michaud
[edited by A.J. - please trim quoted material]
________________________________ From: Allan Sommer <sommer.allan@...> Thanks for your help john. I just found out that my tubes are in12 and not 18's.. do you still think i need a proper driver, or could i use something like this: ________________________________ Allan, It's really up to you - The disposable camera supply is potentially more dangerous since you have to rig it to work.? The allspectrum electronics power supply is cheap and all setup for you. if your willing to wait for it to be shipped to you. John [Non-text portions of this message have been removed] |
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Re: How to drive Tubes
Allan Sommer
[edited by A.J. - please trim quoted material]
On Sat, Jan 2, 2010 at 11:29 PM, John Michaud <greyfox1143@...> wrote: ________________________________Thanks for your help john. I just found out that my tubes are in12 and not 18's.. do you still think i need a proper driver, or could i use something like this: -- Pablo Picasso<> - "Computers are useless. They can only give you answers." |
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Re: How to drive Tubes
John Michaud
Alan,
I would recommend a proper power supply for your expensive IN-18s This power supply will get the job done for a reasonable price - Or you can spend some $$$ on a Ogi Luman power supply. John ________________________________ From: Allan Sommer <sommer.allan@...> ? Hey guys, who are you? Happy new Year.. i'm new in this list and just bought 12 IN-18 tubes Can you guys help me out to at least light up one digit of the tube? i'm trying to use a disposable camera flash but i'm not getting any success. Looking forward for a answer. Thanks, Allan -- Mike Ditka < ote.com/quotes/ authors/m/ mike_ditka. html> - "If God had wanted man to play soccer, he wouldn't have given us arms." [Non-text portions of this message have been removed] |
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Re: How Does it Work?: The K155ID1 and the 74HC595
"chuck richards"
Yes, maybe tinaja.com is a mess, but finding the TTL and CMOS
Cookbooks is about as easy as stumbling over a big rock. Those 2 books are the best ever written about the subject that I know of. They explain how the different types of logic ICs work, and how to use them by showing example circuits. The concepts are presented clearly, with theory, and a schematic is shown, along with a truth table of the expected results. Don leaves it up to the reader to follow along and build the example circuits so as to be able to see them working first hand. Those books are like a huge toolbox full of reliable, working ideas that can be used as building blocks to make whatever one wants to make. Navigating a somewhat clunky old website to find them is well worth the effort. In this fast-paced time of speedy processors, and all sorts of things only dreamed of when those books were written, one can still get right down to each binary bit, and where it goes, and exactly what it does. Those books even show the basic internal transistor circuits used to make the gates. That helps explain the "why" of how they work. Chuck $4.95/mo. National Dialup, Anti-Spam, Anti-Virus, 5mb personal web space. 5x faster dialup for only $9.95/mo. No contracts, No fees, No Kidding! See for more details! |
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Re: How Does it Work?: The K155ID1 and the 74HC595
"J.C. Wren"
On Sat, Jan 2, 2010 at 3:50 AM, chuck richards <chuckrr@...> wrote:
<snip>For all of Don's contributions over the years, and engineering know-how, his site is a disaster area. There's some good info, but it's nearly impossible to find. Reminds me of a Geocities refuge. --jc Eagles may soar, but weasels don't get sucked into jet engines |
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How to drive Tubes
Allan Sommer
Hey guys, who are you?
Happy new Year.. i'm new in this list and just bought 12 IN-18 tubes Can you guys help me out to at least light up one digit of the tube? i'm trying to use a disposable camera flash but i'm not getting any success. Looking forward for a answer. Thanks, Allan -- Mike Ditka <> - "If God had wanted man to play soccer, he wouldn't have given us arms." |
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Re: How Does it Work?: The K155ID1 and the 74HC595
"chuck richards"
[edited by A.J. - please trim quoted material]
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---- Original Message ----<snip> There are two books written by Don Lancaster that explain these things, and many more in great detail. Have a look on Don's web site and look for: The TTL Cookbook, and The CMOS Cookbook. The TTL Cookbook specifically mentions the 74141, and it's nixie application. The 74HC595 isn't mentioned specifically in either of these books, but both books do explain in great detail how all types of shift registers work. So, if you obtain and read these books, then get the data sheets for the specific ICs you are interested in, the knowledge gained from those books will assure that the data sheets make sense once you obtain them. Don's writing goes out of it's way to tell you "How it works". He also assures that you will know not only how it works, but how to build things that work reliably over the long term. Chuck Richards $4.95/mo. National Dialup, Anti-Spam, Anti-Virus, 5mb personal web space. 5x faster dialup for only $9.95/mo. No contracts, No fees, No Kidding! See for more details! |
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Re: Dekatron Spinner PCB boards - blow out! - update 4!
"Dieter Waechter"
A short update.
now only left: EZ10A / EZ10B: 20 pcs. complete kits with all parts excl. tube - price $10 each excl. VAT or 9 EUR incl. VAT. Project here: You can now reach me at info@... The old email info@... is out of date. (???`.._..??????`.._..-DIETER-.._..??????`.._..??????) |
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Re: How Does it Work?: The K155ID1 and the 74HC595
Charles MacDonald
franklinmknight wrote:
Ok, so here is my predicament: after searching the internet for whatYour question reminds me of the PhD student who went to the exam and was asked "why is the sky Blue" - it can be answered on so many different levels. In any of these TTL IC's there are a bunch of circuits which form locic gates. Give an AND gate Two "true" inputs and it will give you a "TRUE" output, anything else and you get FALSE. An OR gate will give you TRUE if either input is true. An XOR gate will give you TRUE if ONLY ONE of the inputs is true. Now if you do a truth Table of the BCD decoder, you can come up with an arrangement of gates that will give a true on one given output for each one of the posible inputs. NOW The gates themselves are made up of a bunch of bipolar transistors/Diodes and such. and the designer has a large number of valid ways to design one. so that is another "layer of the onion" if you like. IF you look at the TI datasheet for their 74141 at You can see a logic diagram and a truth table of the TI version. The Russian version is slightly more complicated as it will not light up a segment if you give it an illegal input. -- Charles MacDonald Stittsville Ontario cmacd@... Just Beyond the Fringe No Microsoft Products were used in sending this e-mail. |
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Re: How Does it Work?: The K155ID1 and the 74HC595
Nick Ames
The shift register:
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franklinmknight wrote: Ok, so here is my predicament: after searching the internet for what seems like days I'm still unable to find a reliable explanation of how a Russian K155ID1 (74141) BCD-Decimal decoder or a 74HC595 8-bit shift register works. I know that a BCD-Decimal decoder does just what it says; it converts binary coded decimal into decimal binary. I also know that a shift register does some kind of shifting or switching operation, logging information and dispersing it through clock pulses. What I don't understand is: a) How?, b) What is the purpose?, and c) What job does it do in a nixie clock? |
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Dekatron Spinner PCB boards - blow out! - update 3!
"Dieter Waechter"
A short update.
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now only left: EZ10A / EZ10B: |
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How Does it Work?: The K155ID1 and the 74HC595
"franklinmknight"
Ok, so here is my predicament: after searching the internet for what seems like days I'm still unable to find a reliable explanation of how a Russian K155ID1 (74141) BCD-Decimal decoder or a 74HC595 8-bit shift register works. I know that a BCD-Decimal decoder does just what it says; it converts binary coded decimal into decimal binary. I also know that a shift register does some kind of shifting or switching operation, logging information and dispersing it through clock pulses. What I don't understand is: a) How?, b) What is the purpose?, and c) What job does it do in a nixie clock?
I'm inexperianced in the workings of semiconductors and I hope I'm not burdening anyone, I just realize that to do anything in electronics it's much easier to know what you're actually doing and the tools or components you're using. I don't know anyone but you intelligent fellows who can help me with these problems, so I thank anyone who contributes to me losing my unwillful electronics ignorance. |
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Re: Velleman nixie clock kit --- any news ?
Moses
Hi Phil,
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They were supposed to be here a week ago.. I apologize to all those who are on the waiting list. I can't get a good answer as to where they are right now, as most everyone has left town for the holidays. I'll see if I can get a revised estimate by early next week and post back. Happy new year! Regards, -Moses Phil Berkowitz wrote:
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Dekatron Spinner PCB boards - blow out! - update 2!
"Dieter Waechter"
A short update.
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now only left: EZ10A / EZ10B: You can now reach me at info@... |
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