oh I see what your taking about, that if you have a capacitor on the anode
output the capacitor has to charging every time the anode is turned on. My
clock isn't set up that way.
The power supply is constantly on and the one capacitor is almost alway full.
Then 4 anode drivers all connect to
Well, I was going to build the 555 using the plans at
www.ledsales.com.au/kits/nixie_supply.pdf which calls for a IRF740. I
noticed that the MAX1771 plans always call for a IRF830 or a
IRF644PBF. If I build the 555 would I be better off swapping the
IRF740 for a IFR830 or IRF644PBF? Or are the
Why does it have to be 555 or MAX1771? Nobody ever gives the MC34063 any
love. ;)
Calculate your anode resistor with a single tube on, direct drive. (Make the
software just turn on one tube and leave it on).. Calculate that current to
be 2.5ma
Now, put the same anode resistor on all the IN-14's.
David,
The short answer: Don't use PWM next to a radio receiver.
You are introducing an interfering radio signal.
thanks for your reply, however, it is not quite what I was hoping for.
Since I have discovered the PWM function on my controller I don't want
to miss it anymore.
Dim the
On Aug 7, 1:41 am, jb-electronics webmas...@jb-electronics.de wrote:
I know there are some radio Nixie
tube clocks out there, so there's got to be a way.
They probably are not multiplexed. All my nixie clocks with
multiplexed displays produce lots of RFI that wipes out
On 8/7/11 1:41 AM, jb-electronics wrote:
David,
The short answer: Don't use PWM next to a radio receiver.
You are introducing an interfering radio signal.
thanks for your reply, however, it is not quite what I was hoping for.
Since I have discovered the PWM function on my controller I don't
On Aug 7, 5:01 pm, David Forbes dfor...@dakotacom.net wrote:
On 8/7/11 1:41 AM, jb-electronics wrote:
David,
The short answer: Don't use PWM next to a radio receiver.
You are introducing an interfering radio signal.
thanks for your reply, however, it is not quite what I was hoping for.
I plan on using a 555 or a AP34063 and i have a IRF510. But i don't know
what to adjust to get the voltage down. I think the plans you use to make
Nixie power supplies are called MK1.5 or MK2. it would be easier to figure
out what to adjust if i have a IRF710 and and i could just tinker around
Ok, I think I misunderstood. I was thinking you had the capacitor between
the anode driver and the nixie.
Sounds like you have the capacitor between the HVPS and the anode driver.
Sounds good.
I don't do anything to lower the sound on my nixies (aside from acrylic
cases.. lol)... My nixies don't
This is what I did as well on my WWVB clock. At night, when the clock tries
to sync, it tuns off both the HVPS and the nixie mux (to get as electrically
quiet as possible). You're still going to want to get it away from the other
devices that are nearby QRM that you can't turn off via clock
On Aug 7, 8:09 pm, Adam Jacobs a...@jacobs.us wrote:
Nick: That's neat, I didn't know you worked at a radio telescope. Pretty
cool.
Not me - that's David. I used to work at an extremely boring hedge
fund!
Nick
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Hah, my bad. :)
On Sun, Aug 7, 2011 at 12:42 PM, Nick n...@desmith.net wrote:
On Aug 7, 8:09 pm, Adam Jacobs a...@jacobs.us wrote:
Nick: That's neat, I didn't know you worked at a radio telescope. Pretty
cool.
Not me - that's David. I used to work at an extremely boring hedge
fund!
WoW funny i just went out on my own and made a adjustable PS using only 4
passive: capacitor inductor resistor and diode. And 2 active: a transistor
and Arduino. I think you misunderstood what i said about 170v. All i was
saying was all of the plans i have found put out 170v and i was simply
Do you cut your own acrylic cases? My clock had a acrylic top and then
another frosted decorative layer that is cut out with a design. But i am so
so picky about everything being Perrrfect. But Acrylic is a tricky
material.
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On Aug 7, 9:21 pm, Quixotic Nixotic nixot...@blueyonder.co.uk wrote:
In fairness, and if my memory is correct, Nicko, our chief moderator,
suggested that driving a FET from a PIC output could stress the PIC
output gate in ways a PIC didn't ought to be stressed and that
current sensing
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