Hi Everybody, I'm happy to say the first prototype PCB has arrived and has been assembled! Some pictures here:
http://www.neonixie.com/IV-9-6D-RR/ Some details.. - I purposefully picked all through hole parts as this will be in full kit form. - I ended up choosing the TI TPIC6C596N driver. It does everything I need and is pin compatibility with PN '595N and possibly a few others. I've been testing software that keeps the unlit segments 'warm' by PWM'ing them to just barely invisible.. not so sure if this is going to make a big lifespan difference. These are being driven by a 74AHCT125 for the logic level shift (3.3v to 5v). - The controller is a ESP32 original dev board from Espressif, the same one I use for my previous nixie clock. This gives me a known good working part number and software carry over from my prior nixie clock. Most of the features of that clock will carry over directly to this one, including the BH1750 lux module and AHT20 temperature/humidity sensor. - Input is 5v via a common DC barrel jack. I did order a few USB-C input jacks, even found a through-hole one. I decided against using it in a kit due to the more delicate soldering required, as well as the unknown quality of all the USB cables and power supplies I generally run into. This runs the IV-9s directly and optionally through a diode to run them at a slightly lower voltage of ~4.2v if desired. I am ordering more parts and should have a few beta boards out before the holidays. Hopefully production kits will be ready sometime in January! Thanks to everyone who provided advice and feedback! Regards, -Moses On Thursday, November 17, 2022 at 3:06:41 AM UTC-8 [email protected] wrote: > If Richard is in-So am I š > > Peter..insidiousnixies:Utube > > > > *From: *'Ian' via neonixie-l > *Sent: *Thursday, November 17, 2022 5:52 PM > *To: *[email protected] > *Subject: *Re: [neonixie-l] Re: Any interest in IV-9 numitron clock kit? > > > Iām in > > On 17 Nov 2022, at 04:28, Richard Scales <[email protected]> wrote: > > I have built several numitron kits from nixieclock.biz and am a big fan > of numitrons, I have only had them running far a couple of years and then > for only half a day at most. I have heard that their tube life is 'long' > but have not seen any actual numbers. I have also re-worked the design for > other numitrons like IV-19 and DTF104B. > > > <RCS_5954.jpg> > > - Richard > > > On Wednesday, 16 November 2022 at 22:26:36 UTC [email protected] wrote: > >> Hi Everybody, >> >> I seem to have enough IV-9 tubes to where I can produce a batch of 100 or >> so 6 digit numitron clocks. Thinking ESP32 powered like my last one (Thank >> you to all those who gave suggestions, the kit came out great!). I'm >> thinking maybe try for a full through-hole solder kit with some shift >> registers. >> >> I know nixies are more popular.. but anyone interested in a numitron >> clock kit? >> >> Oh, one question I do have, anyone have long term experience (ie, years?) >> running this particular tube? How do they fare? >> >> Thank you! >> >> Regards, >> -Moses >> > -- > 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 [email protected]. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/421b1cfd-f165-49ad-a63b-1afae649b1ebn%40googlegroups.com > > <https://groups.google.com/d/msgid/neonixie-l/421b1cfd-f165-49ad-a63b-1afae649b1ebn%40googlegroups.com?utm_medium=email&utm_source=footer> > . > > <RCS_5954.jpg> > > -- > 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 [email protected]. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/6975019D-E714-4B91-94DC-878BE396B531%40yahoo.co.uk > > <https://groups.google.com/d/msgid/neonixie-l/6975019D-E714-4B91-94DC-878BE396B531%40yahoo.co.uk?utm_medium=email&utm_source=footer> > . > -- 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 [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/dbf54f53-6b8c-4a09-8766-a7c4c9b2b887n%40googlegroups.com.
