Re: [neonixie-l] ScopeClock with teensy4.0

Yep... put me down too for a Scope Clock kit of parts :-) Making the H/W & S/W open source would be cool too! I think selling PCB's & parts in kit form without enclosure, places FCC requirements on the user to not cause RF interference. Isn't that how SparkFun and Adafruit can sell

Re: [neonixie-l] Interesting all-transistor clock with analogue dividers

Awesome... I love it !!! On Thursday, September 16, 2021 at 4:35:22 PM UTC-4 Jon wrote: > Neat design. Thanks for sharing Mike. > > Jon. > > On Thursday, September 16, 2021 at 6:13:51 PM UTC+1 Ira wrote: > >> Also known as stairstep generators. Commonly used to step the base >> current, in such

Re: [neonixie-l] Re: I had to have the 7777777777 tube!

What a find!!! On Tuesday, July 13, 2021 at 7:21:23 AM UTC-4 Bill Notfaded wrote: > It was the world population at the time it was made. > > Bill > > > On Mon, Jul 12, 2021, 8:03 PM Owen Crawford wrote: > >> What is the backstory behind this tube and why does it only have the 7 >> digit

[neonixie-l] Re: Nixie Tube Robot Sculpture

Cool idea! On Sunday, June 13, 2021 at 8:31:56 PM UTC-4 tavis...@gmail.com wrote: > Hey guys, I thought I'd share another one of my Nixie Tube projects with > the only people I can think of who might be interested in seeing it. > > After I did my Nixie Dice that i posted on here a few months

Re: [neonixie-l] ebay DIY clock

Requires a client install to download the manual. Installs are risky... On Friday, June 4, 2021 at 7:56:13 PM UTC-4 Terry Bowman wrote: > > On Jun 4, 2021, at 2:19 PM, Nick Andrews wrote: > > Ouch that's pricey. Maybe print out all the pictures on 11x17 in color to > get most of the details?

Re: [neonixie-l] Interesting kit...

I think it is cool looking :-) On Thursday, April 29, 2021 at 9:29:30 PM UTC-4 charles wrote: > On 2021-04-29 8:26 p.m., Nicholas Stock wrote: > 1382%7Cparentrq%3A202a065d1790a69d56791051efa8%7Ciid%3A1 > > > > no idea why they > > use a 7805 that size (aesthetics probably), but interesting

[neonixie-l] Re: Preparing a Kickstarter Campaign for NCH6300HV, the sequel of NCH6100HV

My interest however is powering single digit IN-18 clocks from USB. The nixie only requires 1.2W typical. Your NCH6100HV is a bit pricey and overkill for my application. It would be nice if you could designed a low power version that is less expensive. And yes, I do like option to

[neonixie-l] Need VFDCLOCK HV5WC NIXIE POWER SUPPLY

I'm thinking someone here may have one of these VFDClock power supplies they could sell me. I've built many single digit clocks over the last several years using this power

[neonixie-l] Re: Burroughs logo/letterhead scan needed

My father worked for Burroughs sales/marketing dept in the 60s and I have old marketing brochures from that time. If you have not found what you are looking for from the other fellas, let me know and I will rummage through to see what I can find. On Monday, June 3, 2019 at 4:44:51 PM UTC-4,

[neonixie-l] Re: Looking for FR9020AAs

I want one :-) On Wednesday, May 22, 2019 at 9:00:48 AM UTC-4, Bill Notfaded wrote: > > I think we'd all like some of these... > -- 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,

[neonixie-l] Re: Suggestions for a LiPo powered nixie power supply design?

Interesting point Paul regarding turns ratio. The PA0367 is 1:12, and even though ringing on primary and secondary were small, it was causing havoc with devices methods for measuring primary voltage and secondary current. On Wednesday, May 8, 2019 at 7:45:04 AM UTC-4, Paul Andrews wrote: > > I

[neonixie-l] Re: Suggestions for a LiPo powered nixie power supply design?

Good Point Greg. The LT3420 has Charge (CHG) pin which is essentially an enable/disable. If CHG=HIGH, device charges to set voltage. If CHG=HIGH and voltage is reached, device enters a refresh mode to regulate. CHG=LOW is low power mode. CHG can also be PWM'ed by micro to control input

[neonixie-l] Re: Hewlett Packard Power Cord

You might try a call to SkyCraft Surplus . They have been around since the 70's. On Tuesday, May 7, 2019 at 10:28:50 AM UTC-4, Greg P wrote: > > Anyone know where I can find a power cord for an old HP Frequency Counter > that I just got. Seems these have been

Re: [neonixie-l] Crooks Railway Tube HV Power Supply ?

Thanks Terry, and everyone else for your responses. Looks like the Fisher Biotech FB-650 Electrophoresis Supply will do the trick... 0-6kv, 0-350ma adjustable. I've found one for under $100. Rich K4REA :-) On Thursday, April 4, 2019 at 7:48:31 PM UTC-4, Terry Bowman wrote: > > > On Apr 4,

Re: [neonixie-l] Crooks Railway Tube HV Power Supply ?

On Thursday, April 4, 2019 at 9:25:51 AM UTC-4, martin martin wrote: > > That's pretty cool. I have an old neon sign transformer. I think it's 6 > kv. Are you in CA? I'll drop it off. > > On Thu, Apr 4, 2019 at 6:21 AM Richard Arndt > wrote: > >> This is not a Nixie Tube r

[neonixie-l] Crooks Railway Tube HV Power Supply ?

This is not a Nixie Tube related subject, but someone here probably knows enough about tubes to answer the question. I purchase an old Crooks Railway Tube some years ago, with electrode plates about 8 inches apart. I am wanting to try it out and was thinking a Fisher Biotech FB-650

Re: [neonixie-l] Re: How dangerous is 150V - 170V DC?

Thank you John for that very interesting read. I have explored technical papers to gain some understanding of what is dangerous, since I was doing contract work developing a Galvanic Vestibular Stimulator. Of course, I was the first guinea pig to test my own device, but it was nothing like

[neonixie-l] Re: How dangerous is 150V - 170V DC?

I will convey a story my engineering manager once told me back in the 70's. He had a friend who wanted to measure his internal body resistance. He did so by sticking a pin through the skin on both the right and left hand, then used a VOM (vacuum tube volt-ohm meter) to measure the

Re: [neonixie-l] Re: Nixie Tube Test Bench HV Electrophoresis Power Supply Idea

Thank you Greg for the HV PWB offer, however I am happy stay with using my Electrophoresis Power Supply. Feel free to pass your offer on to someone else. And thank you for your added note of caution, as the supply is lethal if not handled with care. What I do like about these units is that the

[neonixie-l] Nixie Tube Test Bench HV Electrophoresis Power Supply Idea

I have designed a few Nixie tube clocks I call OneNixie. I have attempted to design a compact 1W 180V power supply that runs off USB (5V) to light up a single Nixie. I have not come up with a satisfactory design yet... so I have been using a nice 5W unit out of China. One thing that has been

[neonixie-l] Re: Welcome & please introduce yourself!

My Name is Richard Arndt. As I read your stories, I find myself smiling as though you are long lost friends, kindred spirits from ages ago :-) I was bored to death back in elementary school (1960's). My teachers said I was a smart fella but that I could not stay focused and was always day