Interesting pojt Bill on the fact that some data sheets specify
multiplexing and some dont, as you say some tubes were not 'desgined'
to be muxed, I think thats probably because muxing wasnt common when
nixies were current, I wonder what manufacturers did to a tube to make
it intended for muxing, o
Dieter your idea of a 'hobby' is what we mere mortals class as 'a business'
haha
On Tuesday, 25 September 2012 21:38:59 UTC+1, Nocrotec wrote:
>
> Hi!
>
> > A day?!
>
> Yes, a day
>
> > Whoah, i had no idea you could be that busy! Are you selling clocks /
> > tubes as a fulltime job?
>
>
Hi!
A day?!
Yes, a day
Whoah, i had no idea you could be that busy! Are you selling clocks /
tubes as a fulltime job?
No no... just a hobby. ;-)
Dieter
--
You received this message because you are subscribed to the Google Groups
"neonixie-l" group.
To post to this group, send an emai
A day?! Whoah, i had no idea you could be that busy! Are you selling clocks
/ tubes as a fulltime job?
On Tuesday, 25 September 2012 20:53:27 UTC+1, Nocrotec wrote:
>
> Hi!
>
> > Ah ok, by the way, hows the big site update going?
>
> ahhh... it's super super super delayed.
> I still have so ma
Hi!
Ah ok, by the way, hows the big site update going?
ahhh... it's super super super delayed.
I still have so many orders that I don't know what to do first.
I have so many data I want to put online.. but no chance at the moment.
200-300 Nixie e-mails a day are hard to process for one man onl
Yes, John is right about that.
TTL inputs tend to float high.
You can see that if you take a 74141 and power it
up and look at each of the four inputs using a
high impedance DVM. They will all be at some voltage
just over the threshold that makes them high.
That floating high business is reall
General rule of any kind of logic chip, is to terminate ALL inputs. All the
inputs on a chip should be either tied to gnd, or a logic-1. I say a
logic-1 because some older TTL chips didn't like the inputs tied to +5V. A
static logic-1 can be made by using a resistor in the range of 1K to 10K.
T
Ah ok, by the way, hows the big site update going?
On Tuesday, 25 September 2012 09:19:02 UTC+1, Nocrotec wrote:
>
> > Are you writing some article?
>
> No, I just was curious. ;-)
> Dieter
>
--
You received this message because you are subscribed to the Google Groups
"neonixie-l" group.
To
> In case you are wondering why this is so, it's because TTL logic is
> based on NPN transistors. They are good at pulling a signal down to 0V,
> but not good at pulling a signal up to 5V. So a resistor does the
> pulling up, and the transistor does the pulling down.
>
You can see this in th
On 9/25/12 6:07 AM, Sean wrote:
Thanks! Didn't realize I needed to pull the inputs down to ground. Guess I was
thinking since the chip was grounded at pin-12 that the inputs would default to
low. All works as expected now. Thanks again!
In case you are wondering why this is so, it's because
Thanks! Didn't realize I needed to pull the inputs down to ground. Guess I was
thinking since the chip was grounded at pin-12 that the inputs would default to
low. All works as expected now. Thanks again!
--
You received this message because you are subscribed to the Google Groups
"neonixie-l"
Are you writing some article?
No, I just was curious. ;-)
Dieter
--
You received this message because you are subscribed to the Google Groups
"neonixie-l" group.
To post to this group, send an email to neonixie-l@googlegroups.com.
To unsubscribe from this group, send email to
neonixie-l+unsub
12 matches
Mail list logo
