[neonixie-l] Re: IN-18 Modular Arduino clock layout updated

You guys persuaded me to add a 2nd LED under each tube. Done. 3 - not going to happen. I also liked Pete's cascode anode driver idea so much I've adopted that as well. Interesting side effect of doing that -- no need for a ground connection to the 2 digit extension boards. That seems strange e

[neonixie-l] Re: Solitube Kit PDF Assembly Guide

Here is the link to the PDF instruction file, http://www.daliborfarny.com/sites/default/files/upload/solitube_manual.pdf I put the kit together last year, nice looking clock! On Friday, February 27, 2015 at 12:43:44 PM UTC-6, Jon D. wrote: > > I've tried to contact Dalibor this morning earl

[neonixie-l] Re: Nixie Thermometer

For the IN-13, if the cathode is not poisoned, they are linear within some tolerance of course. They become increasingly non-linear near full coverage of the cathode; about 1-2 cm from the top. Treating them as linear within two regions each with each own slope has been a great approximation. C

[neonixie-l] Re: Nixie Thermometer

Are the IN-13's behaving linearly, or at least are they monotonic and repeatable ? I experimented with some IN-9's and found them to be very erratic. I'm about ready to throw them out. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscri

[neonixie-l] Re: Nixie Thermometer

Very intriguing way of going about creating/tapping into a ramp signal to drive the bargraph. Nice! Alex On Friday, February 27, 2015 at 9:41:25 AM UTC, threeneurons wrote: > > Here's a little nixie project. Its a thermometer, it has a 2-1/2 digit > display, with a simple NE-2 in the 1xx positi

RE: [neonixie-l] Looking for group banner home page photos...

Well I just attempted to send you a photo Nick, but your email address rejected my message as spam. Chuck Original Message From: n...@desmith.net To: neonixie-l@googlegroups.com Subject: [neonixie-l] Looking for group banner home page photos... Date: Fri, 27 Feb 2015 02:40:09 -0800 (PST

[neonixie-l] Solitube Kit PDF Assembly Guide

I've tried to contact Dalibor this morning early (my time) over email regarding the subject PDF file, but he may be busy or off somewhere. And I looked on his various sites and googled as well, bit so far no joy. Does anyone have a copy of the Solitube Kit PDF Assembly Guide that they could sen

Re: [neonixie-l] Re: Multiplexing noise

Thanks Pete -- my design uses the SMT versions of the transistors so I'm particularly interested in reducing the power dissipation. Please clarify the placement of the "helper" resistor -- in the vertical leg of the Q1 collector circuit, or in the horizontal leg of the Q2 base connection? If I

Re: [neonixie-l] Nixie Thermometer

Nice job! I like it. On Fri, Feb 27, 2015 at 3:41 AM, 'threeneurons' via neonixie-l < neonixie-l@googlegroups.com> wrote: > Here's a little nixie project. Its a thermometer, it has a 2-1/2 digit > display, with a simple NE-2 in the 1xx position. I decide to build a > decrete dual slope ADC circui

[neonixie-l] Looking for group banner home page photos...

Some may have noticed the nice home page image at https://groups.google.com/forum/#!forum/neonixie-l I'l looking for contributions, maybe of people's projects, maybe just neon-related images like the current one... just for rotating on the h

[neonixie-l] Nixie Thermometer

Here's a little nixie project. Its a thermometer, it has a 2-1/2 digit display, with a simple NE-2 in the 1xx position. I decide to build a decrete dual slope ADC circuit, to convert the temp voltage from a LM34 to a digital readout. Since a dual slope converter has a rising and falling ramp (w

[neonixie-l] Re: Wanted: Nick DeSmith SMPS board.

There are several people out there selling variants of this board, or at least similar ones - I don't have time to make or sell boards, unfortunately. The Taylor Edge 1363/1364 are well regarded, as are those by Mike Moorrees (aka. threeneurons) - many others out there! Cheers Nick (de Smith)

Re: [neonixie-l] Re: Multiplexing noise

With the conventional circuit, you have two saturated transistor switches, each of which needs to turn off to blank the anode. Each may take a few microseconds, and the second stage doesn't start its time delay until the first stage turn off is completely finished. With most designs the transis