That's great news. Thanks for coming back and letting us know.
On Dec 8, 4:32 pm, Imbanon wrote:
> Hey everyone!
> Got some news on the supply!
> I got some replacement parts (big thanks to Threeneurons here), and
> got it all working as intended. I replaced the diode and the FET, I
> left the c
> > Try disconnecting the diode on your breadboard and applying a 12V DC
> > to the output node (where you expect 170V) and see what voltage you
> > measure at the base of Q2. Do this with the oscillator unpowered (no
> > 12V where it usually goes, just where it usually doesn't). You should
> > s
Just a quick question: your FETs, are they from the kit or did you
order them separate. If they were ordered separately you may want to
make sure you got the 400V ones and not the 20/40V...
I'm guessing since you said you installed a heatsink that you got the
correct one in the TO-220AB package
Since the frequency of oscillation is governed by R2, R3, and C2 and
assuming you are using +/-10% tolerance resistors you may see a range
of 27.5-33.6kHz and that's not even accounting for the cap, C2. If
you're actually using 20% resistors your range can vary as low as
25.25kHz. So 21kHz is sti
On Nov 19, 11:08 pm, John Rehwinkel wrote:
[...snipped...]
> It's entirely feasible. Just realize you'll still have 140 or so volts
> dropping across your nixies, and the remaining
> 190 or so volts will be dropped across your anode resistors. The advantage
> to such a high anode voltage is t
On Nov 20, 11:56 am, threeneurons wrote:
> > Lots of people on this group made their first nixie clock using Mike
> > Harrison's design:http://www.electricstuff.co.uk/nixclock.html
>
> > I measure approximately 250vdc on the HV supply (110vac RMS rectified to
> > ~170vdc doubled to ~250vdc). These
assume was that
the cap C5 doesn't charge enough through the 2Meg to get too far above
the GND pin or that he's relying on the internal ESD protection
diodes. Surely that can't be good for the reliability of that part...
> -Adam AJ9D
>
> On Sat, Nov 19, 2011 at 3:13 PM, Adr
I'm in North America where we have 110AVC mains. I had been working
under the assumption that the output of a voltage doubler would be
220VDC. Based on some recent reading it seems that this is
incorrect. The 110VAC is actually RMS according to wikipedia. So am
I correct in stating that the out
On Nov 19, 4:00 pm, David Forbes wrote:
> On 11/19/11 1:28 PM, unpleasant_persona wrote:
>
> > This is my first post on my effort to build my first Nixie clock from
> > scratch.
>
> > Will having 220V (or more) damage the tubes?
>
> > If not what is the maxim
This is my first post on my effort to build my first Nixie clock from
scratch. I'm currently working on the power supply and am looking to
make a very simple implementation. Being in North America I'm dealing
with a mains voltage of 110V and would like to use a simple voltage
doubler to make the
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