Dieter, try the tubecollectorsassociation (TCA) Yahoo Group too.
John K
- Original Message -
From: Dieter Waechter i...@nocrotec.com
do we have Japanese people here in the group?
I need some help for forwarding some Nixie tubes to me.
I will pay for the work of course.
Thanks
Dieter
No, No, No.
That's only if there was no MPSA92 in the circuit. Remember, the Base-
emitter junction of a transistor is a simple PN junction, ie a diode,
and will act like one. The forward voltage will be limited to about
0.6V to 0.7V for your common silicon transistor. (Wiki a silicon
diode) If
OK, I think I understood some of that. You're saying that the amount
of current the MPSA42 will let through is defined by some relationship
with (Vin-Vdrop)/Rground, or (5-.7)/1=.00043A. This is the amount
of current across base to emitter, yes? But, if the Hfe is 50, doesn't
that mean that I
Hi Will,
I've learned more from trying and failing than I have from all of the
great advice in the world.
I've also learned that I can _actually_ do some things that everyone
told me was impossible. Don't discount the merit of just giving it a shot.
-Adam
will wrote:
Also, I really can't
OK then, tried it and it worked... I didn't notice a difference
though... Still a little confused as to the properties of transistors,
but I'll probably figure it out...
On Jan 24, 4:57 pm, Adam Jacobs a...@jacobs.us wrote:
Hi Will,
I've learned more from trying and failing than I have from
I'd recommend studying something like this:
http://mysite.du.edu/~etuttle/electron/elect2.htm
Bill
On Mon, Jan 24, 2011 at 7:38 PM, will ossumguyw...@gmail.com wrote:
OK then, tried it and it worked... I didn't notice a difference
though... Still a little confused as to the properties of
That's the stuff. I'm sure you will figure it out.
We are almost always using transistors in these nixie clocks as
saturated switches, almost never in the linear region or as amplifiers.
You can spend years learning transistor theory, but that's not really
necessary to turn on and off a nixie
On Jan 24, 7:15 pm, threeneurons threeneur...@yahoo.com wrote:
. If a square of toilet paper
was another size, would world order break down ?
No, but more extensive handwashing would be required :)
Seriously though, I share Mike's general perspective. Learn from
others the general
Err... I'm way past breadboards here, I thought I said that I was
already multiplexing A1A lamps... By limited supply of parts I
actually mean I don't want to keep shelling out to digikey, I've
already spent too much for all this crap, not I don't have the basic
parts, lol. I'm just more of a
So then you already have a breadboard, that's good. You'll be along in no
time.
Being a software guy is no excuse, I'm a software guy. You can tell the
software guys' circuits because all they are is the minimum hardware
necessary to hook up the microcontroller... :D
-Adam
On Mon, Jan 24, 2011
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