[neonixie-l] Re: A few Oddities available here.

Thanks for the link! Bought some :) Prices are very fair! -- 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

Re: [neonixie-l] Re: Fake nixie power supply on eBay!!!

I reported it too. -Dan On Thu, 29 Sep 2016, TouMu wrote: Reported. Regards 2016???9???29 UTC+8??11???51???42 Recently I got some emails from ebay buyers, they claimed the NCH6100HV Nixie Power Supply they bought from other eBay sellers can not

Re: [neonixie-l] Re: First nixie clock

For direct-drive of true nixies (non-segmented), I'm really happy with the design of my last clock. The cathodes are driven by a HV5532, and the anode has an adjustable current-regulator. Having the HV driver and the deserializer+latch in a single device is really handy. The only drawback to

[neonixie-l] Re: eBay: Omni-Ray for sale!

I almost bought it on a whim, but there was only 1. From what I could gather from a bit of websearching, it's a numerical indicator that uses a bunch of dots to create the characters. I would be very surprised if it was an actual array of individual bulbs or LEDs; the illustration I saw would

[neonixie-l] Re: eBay: Omni-Ray for sale!

Someone got a steal, those are super rare! Seller is probably not a member here, or he might have known better than to put a BIN on it. I'll bet the buyer is one of us. On Monday, September 26, 2016 at 1:39:47 PM UTC-7, marta_kson wrote: > > Not my auktion. > > There is an Omni-Ray display

Re: [neonixie-l] Can anyone identify please?

Thanks AJ, that is a nice piece of trivia :) Jens that is On 9/29/2016 4:22 PM, A.J. Franzman wrote: I think Westdave was the first of our group to call them "bat nixies", back in the Yahoo days. I don't know if he coined the term or heard it elsewhere. I believe what little manufacturer

Re: [neonixie-l] Re: First nixie clock

I recommend the Texas Instruments SN75468 Darlington driver IC instead of all those transistors. It has seven 100V transistors. The clamp diode pin 9 wants to be connected to 1/2 the Nixie supply voltage, about 90V. A resistor-based voltage divider will work. I use a lower voltage part in my

[neonixie-l] Re: First nixie clock

For the next PCB based projects I’ m not sure if I should stay with the 74HC595 and the MPSA42 transistors or if I should start using modern components like the HV5622. Is there a recommended way to implement direct drive? -- You received this message because you are subscribed to the

Re: [neonixie-l] Re: First nixie clock

Mark, I agree with this. I am a big fan of PC boards. However, I also built my first Nixie clock, and my first oscilloscope clock, on perfboard. The scope clock logic board started out life on a solderless breadboard, as did my first Nixie watch. There's something to be said for doing it

[neonixie-l] Re: First nixie clock

For almost all of my new projects, I use a PCB now. Even in the prototype stage, and knowing that I'll have to do some "blue wire" modifications, I find that the reliability is much higher, and trouble-shooting is easier. By using the design rules check, I can guarantee that the PCB matches

Re: [neonixie-l] Fake nixie power supply on eBay!!!

Wise words Jeff. The more people speak out, the less this will (hopefully) happen... On Thu, Sep 29, 2016 at 9:05 AM, Jeff Walton wrote: > File complaint with eBay and get the sellers shut down. You make great > quality stuff and this is unfortunate. > > Too many crooks

RE: [neonixie-l] Fake nixie power supply on eBay!!!

File complaint with eBay and get the sellers shut down.  You make great quality stuff and this is unfortunate.  Too many crooks in the world.   EBay is pretty good with buyers when counterfeit and fake parts are found.   Buyers need to speak up when cheated and get these sellers banned. 

Re: [neonixie-l] How hot should a mosfet get?

I have had a couple of these IRFD220s heat up on me enough to cause concern and they were replaced by a different batch that solved the problem. 2 out of 7 clocks have had this issue but Pete pretested the replacements and since then no issues. He is always helpful with any problems > >> > --

Re: [neonixie-l] How hot should a mosfet get?

I'd choose a device designed for higher power dissipation and that can accommodate a heatsink, such as a TO-220. Be sure your replacement device has a similar or slightly lower Vgs (on), and a lower Rds. I don know what the DC-DC converter design looks like, so make sure Vds is greater than the

Re: [neonixie-l] How hot should a mosfet get?

Should I install a new mosfet and see if a different one runs cooler? Worth a try? How about these for heat dissipation? http://www.ebay.com/itm/Enzotech-MOS-C1-Copper-MOSFET-Cooler-10PK-/252414079757?hash=item3ac50d330d:m:mb_3I4NWrjGw-R3DDEL2YEA -- You received this message because you are