Ask Microsoft. They ship buggy software, and make a pretty good living off
of it.
Err, no !I think you are referring to their feature-full software.
John K.
- Original Message -
From: threeneurons threeneur...@yahoo.com
To: neonixie-l neonixie-l@googlegroups.com
Sent: Friday,
Nixie Veterans,
I'm looking for advice: I thought some of you here might have dealt with
MAX1771 and know its quirks.
I've built a power supply based on Nick de Smith's excellent web page. I added
a voltage doubler (for dekatrons), and a couple of linear stabilizers for other
circuitry. I
I have a supply that kind of works, but I get a large sawtooth-like ripple on
the output. The ripple is 17V peak-to-peak at 170V and the frequency is
23-80Hz (depending on the load).
There are four things I would look at: current limiting, feedback oscillation,
power supply problems, and
Many of you may be aware of Kabtronics' Transistor Clock kit - a 7-
segment LED clock made with all transistor-diode logic and no chips.
Keith Bayern, the designer, now has a Nixie Transistor clock. All
transistor-diode logic.
I built his Transistor Clock several years ago. It is a constant
Sorry... I got the URL wrong. Please see http://kabtronics.com
On Jan 13, 9:48 am, Joseph Bento jos...@kirtland.com wrote:
Many of you may be aware of Kabtronics' Transistor Clock kit - a 7-
segment LED clock made with all transistor-diode logic and no chips.
Keith Bayern, the designer, now
Thanks for your suggestions!
On 13 sty 2012, at 17:17, John Rehwinkel wrote:
I have a supply that kind of works, but I get a large sawtooth-like ripple
on the output. The ripple is 17V peak-to-peak at 170V and the frequency is
23-80Hz (depending on the load).
There are four things I would
No, I worked there. Trust me, the bug tracking database for any version
of windows is astonishingly full.
On a more serious note: Obviously all software has bugs. Period. The
only software that can honestly be described as truly bug free is the
most simple software with the least
Your problem seems to be very common on the 1771. My experience is
that the feedback input is e x t r e a m l y sensitive to
interference. Try to decouple it to ground through a few hundred pF
and the problems might go away. I have not found the exact reason to
my own problems, but expect it's
I suppose that I only read about the bad experiences, but I always can't
help wondering to myself exactly why anybody messes with these chips at all.
-Adam
On 1/13/2012 4:14 PM, marta_kson wrote:
Your problem seems to be very common on the 1771. My experience is
that the feedback input is e x
I suppose that I only read about the bad experiences, but I always can't
help wondering to myself exactly why anybody messes with these chips at all.
Because, once everything is quieted down (stabilized), its the most
efficient of all the switchers usually used here. Even the MC34063 has
No, I worked there. Trust me, the bug tracking database for any version
of windows is astonishingly full.
Sorry, I was trying to make a 'funny' by alluding to the joke about MS
calling certain bugs as 'Features' !
John K.
- Original Message -
From: Adam Jacobs a...@jacobs.us
To:
Hi all-
Just wanted to revisit this thread to provide an update on my learning
process and ask for some additional advice... I was in Radioshack to grab a
one off part I needed for something else, and on a whim decided to look at
their transformers. I noticed they had one that does 25.2VAC out
I'm npt at all sure just decoupling it would help - the main issue
with it is that my notes explicitly state that the FB trace should be
as short as possible, but in the layout shown it loops round the
board. See the Key points bullet list at
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