Hello all,
First off, thank you all for providing input. Truly a great collection of
knowledgable folks here.
I ended up removing a mosfet from another kit and installing it in this clock.
It now runs at a normal temperature, around 90 degrees F or so. I guess it must
have been a bad part. P
Thanks for the link! Bought some :) Prices are very fair!
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To post to this
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 work
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
th
Reported.
Regards
严泽远於 2016年9月29日星期四 UTC+8下午11時51分42秒寫道:
>
> Recently I got some emails from ebay buyers, they claimed the NCH6100HV
> Nixie Power Supply they bought from other eBay sellers can not works and
> looks very poor quality, not exactly same as I posted on my website:
> http://www.ni
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
s
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 modul
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 litera
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 literature can be found on
them rather unimaginatively calls them "inverted display" tubes.
On Thursday, Se
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 N
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?
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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 the
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 th
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 in the world. EBay is
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.
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
>
>>
>
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Folks, you can find the schematic for the clock on Pete's website under the
kit instructions for Frank 3 clock (
http://www.pvelectronics.co.uk/index.php?main_page=page_2&zenid=20158eaf309af0e37312e9962a16f589).
The mosfet does get warm on this but I've never had an issue with any of
these clocks f
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
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