[neonixie-l] Re: Trigger clock revisited
Last word on the trigger clock, from me anyway: Upping the anode resistors to 43k didn't work as expected. I finally settled on the optimum value at 30k. I swapped the 50 minute tube with its associated nixie driver tube. The ring counted just fine but the '5' never went out - the tube was WAY too sensitive and had to be changed out. Most unexpectedly, it now runs just fine in the light and in the dark without any UV stimulation. It seemed to be getting a bit sensitive, so I removed the LEDs as an experiment. None of the rings has missed a step in over a week. Perhaps after being run continuously for three or four weeks, the tubes aged and settled down. -- You received this message because you are subscribed to the Google Groups neonixie-l group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/af244039-5e24-42ef-90f6-1b3b7b578154%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [neonixie-l] Your message in neonixie-l was denied
Bet that it's that stupid heart bleed thingamajig going around the web. I suggest everyone change their password, with the exception of me. I've already changed it. -- You received this message because you are subscribed to the Google Groups neonixie-l group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/bbbeedca-8f1c-4aad-a1c0-17cce198b49e%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[neonixie-l] Re: Trigger clock revisited
Nice to hear that ! Guess that's why the emphasized the aging process in old neons used for logic. Guess that applies to triggers, too. Kinda makes sense. Great Job ! I love seeing these things ! On Saturday, April 12, 2014 2:44:41 AM UTC-7, petehand wrote: Last word on the trigger clock, from me anyway: ... I removed the LEDs as an experiment. None of the rings has missed a step in over a week. Perhaps after being run continuously for three or four weeks, the tubes aged and settled down. -- You received this message because you are subscribed to the Google Groups neonixie-l group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/dcea0133-9940-4e4d-b637-cfff28b19a5d%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [neonixie-l] Think I should Sue ?
I know. Its just that it popped out, when I went to eBay, yesterday. They want over $400, for a pair of relatively small speakers, that can't possibly have sound to match that price ! I attend the annual CES show in Las Vegas regularly. I use to visit the high end/audiophile rooms. A lot of the products are pure snake oil. But some of the speakers had cabinetry, that were done by master wood workers. Even if the speakers inside are just crappy pieces of cardboard, with two wires sticking out. They were asking as much as $30,000 a piece (not a pair) for some. A few seemed even worth it, just for the quality of the wood work ! These eBay speakers ... eh On Friday, April 11, 2014 1:47:26 PM UTC-7, Tidak Ada wrote: Sorry, no chance for a successful sue ;-) -- -- You received this message because you are subscribed to the Google Groups neonixie-l group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/85845ec7-aae3-4e8d-ac2c-46516e774b84%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [neonixie-l] Re: trigger tube equivilents
hi all, thanks for suggestions for this fault.. relay and capacitor triedit was indeed cured by a capacitor [0.47uf 630v] without the need for a relay. now i have another question! i am trying to find why GR43 number 15 on the schematic strikes as soon as power is applied and stays lit, until it gets is extinguish pulse, it then after a few seconds re-strikes, it should not strike until it receives a pulse from ER32 tube 8 on the schematic...i have changed capacitors and checked values of resistors around this tube and cant find a fault...is it safe as far as the GR43 to disconnect the trigger and leave it floating, at least then i know if it striking spontaneously or getting a trigger pulse when it should notthanks, bob On Friday, March 28, 2014 3:31:14 PM UTC, Dekatron42 wrote: Hi Bob, Would it be possible for you to use a relay in between the wiper contact and the trigger tube? Maybe the wiper could drive a relay and you then use the relay contacts to drive the trigger tube, just for testing if that will solve the problem. The problem with old SRBP PCB's is that contacts that rotate on them leave a track of dirt which will carry leakage currents. Sometimes you can get rid of this by washing them in an ultrasonic cleaner and also by bathing them in isopropyl alcohol, some need mechanical cleaning to remove the conducting track and some are impossible to clean enough which leaves the only option of letting them control a relay that then controls the original circuit. /Martin -- You received this message because you are subscribed to the Google Groups neonixie-l group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/7218d03b-36d3-4843-b5e5-0c44a438d278%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [neonixie-l] Think I should Sue ?
On 12 Apr 2014, at 20:01, threeneurons wrote: I know. Its just that it popped out, when I went to eBay, yesterday. They want over $400, for a pair of relatively small speakers, that can't possibly have sound to match that price ! As a designer of more years than I care to admit, I see archetypal shapes that appear and reappear over the years and slicing a cylinder at oblique angles is one of these ideas and the example of Threeneurons' is excellent work. The tube on a stand is something else entirely. Apples and pears. I used to study slicing the platonic solids and crystallography to get the fundamental basics of geometry to see what places I could go with 3D solid structures. I originally trained as an architect, but product design is way more interesting to me. Many of the things I used to dream up have now come to fruition. The book that most influenced me was Keith Critchlow's, Order in Space - a design source book, which I am happy to see is still in print. http://www.amazon.co.uk/Order-Space-Design-Source-Book/dp/0500340331. Keith was a lecturer at London's Architectural Association, which is not the kind of architectural association you might imagine, a trade body of some kind, but a highly regarded school of architecture. I believe Keith only had/has one eye, so perhaps this led to his deep interest in geometry in making sense of a 3D world he could not see well for himself. He discovered a new single space-filling solid (it is in the book) which attracted the admiration of Buckminster Fuller. I thought that the five platonic solids were the only ones that could be formed from equal sided convex shapes until my father, a PhD geologist, told me I was talking a crock of nonsense and gave me a book on crystals, featuring some skewed solids that had 'handedness', yet were made from one size and shape of polygon with equal length sides. I was fascinated by it all. Philosophically the harmony of the spheres and geometry became to me like a religion, full of wonder and beauty and amazement. I think mathematicians see much of this in the property of numbers, but I am personally too stupid to comprehend them. In recent years I have found Catmull-Clark and to a lesser extent Doo-Sabin subdivision surfaces to be the most innovative development in 3D design that I have seen happen in millennia. At last we have a way of taming accurately dimensioned compound curved surfaces in 3D in a coherent and predictable way, resolution independent in that they can be subdivided again and again making it purer and purer. The proliferation of products today we see with pleasing curves rather than angles is testimony to our new ability. It takes a whole new mindset to design with subdivision surfaces. In the days when we all had to draw at the drawing board on flat paper, with set squares and pens, it was no wonder that hard angles predominated. It would take ages to accurately plot and draw intersections of tubes, or a slice across a tube, in plan and two elevations. We tended to think in the ways that we could convey our concepts in flat drawing form, unless we could sculpt it rather than draw it. But engineering people wanted flat drawings to work from, not a lump of something physical. Yes, but where are your drawings? they would cry. We can now all model in 3D convincingly and accurately. Then we can add bones and animate our meshes. Texture it up, add some particle effects and physics and everyone is their own Pixar. John S -- You received this message because you are subscribed to the Google Groups neonixie-l group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/C6173D50-60F5-4F63-8C1B-4AAE5BA5C5BE%40jsdesign.co.uk. For more options, visit https://groups.google.com/d/optout.
[neonixie-l] 555 power supply
I often use a classic 555 nixie power supply as I find they always work for me and are very tolerant of any PCB layout abuse I submit them to in my infinite ignorance. My question is: Is there a simple way of switching a 555-generated timer off from a 5v logic gate, as I would like it to go to sleep when I send a PIC to sleep. Thank you in anticipation, John S -- You received this message because you are subscribed to the Google Groups neonixie-l group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/3A1EAAD2-36FD-4A60-930B-E4349F23F4D8%40jsdesign.co.uk. For more options, visit https://groups.google.com/d/optout.
[neonixie-l] DS3231 plus memory
I just wanted to say how pleased I am with some little I2C modules that seem to be sold everywhere by the Chinese. They work really well. They have a DS3231 clock, with socketed battery backup including the rechargeable battery, an AT24C32 memory with 4096 bytes of memory, all necessary pullups for everything, including the memory chip select bits, an on LED and a thru bus for adding more stuff onto the I2C chain. At a price that is way less than I can buy the individual parts. All soldered up for me on a PCB. How do they do it? I can get three of these delivered for the cost of one beer in a London pub. John S -- You received this message because you are subscribed to the Google Groups neonixie-l group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/7E11BFE2-A2DF-4963-BFD7-9D93302ADAE5%40jsdesign.co.uk. For more options, visit https://groups.google.com/d/optout. inline: $_12.JPG
Re: [neonixie-l] 555 power supply
On 12 Apr 2014, at 23:03, Michel van der Meij wrote: Hi John, I use the attached circuit in my ZX81 nixie clock and works great. On J7 pin 1 is the 12V input (mine is 9V btw). Pin 2 can be pulled down to gnd with an open collector circuit which will then power up the 555 circuit. The gate of Q5 is normally kept high by resistor R16 which prevents Q5 from conducting. R16 is not critical, you can also choose a 10K resistor, doesn't matter for as long as the gate is kept high and the open collector transistor can drive it low. Best regards, Michel Thank you Michel, that was very helpful information. John S -- You received this message because you are subscribed to the Google Groups neonixie-l group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/18187749-6C56-42D4-9C2A-FA91E2B587C0%40jsdesign.co.uk. For more options, visit https://groups.google.com/d/optout.
