Gregebert you are quite correct about the probable connection and the
voltage spread, it would only work within the same batch, I built a 3x3 and
it was tricky as hell to get working. I'm told there were Soviet era neon
lamps with a wider voltage spread that would be easier.
Maybe this guy:
https:
So if the display was static, using only pulses to turn bulbs on or off,
then it was most likely all bulbs were resistively tied to a sustaining
voltage, say 70 volts.
If individual rows were sequentially pulsed higher, say +85V while columns
were pulsed slightly negative, then those targeted bu
Copy that...
On Wed, May 5, 2021 at 2:42 PM Tidak Ada wrote:
> Oops, a typo.It is ZM1215 of course as the file name says.
> eric
> Verstuurd vanaf mijn iPhone
>
> Op 5 mei 2021 om 22:36 heeft Jon Jackson het
> volgende geschreven:
>
>
> is this a ZM1251 or ZM1215 ?? You have conflicting info
Oops, a typo.It is ZM1215 of course as the file name says.
eric
Verstuurd vanaf mijn iPhone
> Op 5 mei 2021 om 22:36 heeft Jon Jackson het volgende
> geschreven:
>
>
> is this a ZM1251 or ZM1215 ?? You have conflicting info...
>
>> On Wed, May 5, 2021 at 2:29 PM Tom Harris wrote:
>> Thanks
is this a ZM1251 or ZM1215 ?? You have conflicting info...
On Wed, May 5, 2021 at 2:29 PM Tom Harris wrote:
> Thanks for the ideas but it was definitely static with the pulses just
> used to turn the lamps on or off. After that they would keep their state
> indefinitely.
>
> Tom Harris
>
>
> O
Wow each lamp was individually pinned out. How did they drive these? Big
diode matrix?
Tom Harris
On Thu, 6 May 2021 at 06:27, Tidak Ada wrote:
> There was ever a Mullard ZM1251. A 5×7 neon dot matrix at the size of a
> stamp.
>
>
>
> eric
>
>
>
> *Van:* neonixie-l@googlegroups.com [mailto:ne
Thanks for the ideas but it was definitely static with the pulses just used
to turn the lamps on or off. After that they would keep their state
indefinitely.
Tom Harris
On Thu, 6 May 2021 at 01:21, gregebert wrote:
> If it was pulsed-DC, then it probably was simple multiplexing.
>
> I have th
If it was pulsed-DC, then it probably was simple multiplexing.
I have thought about doing it with AC, which makes the driver more complex,
but it will make the bulbs last longer since both electrodes will be
illuminated (alternately, of course). Not sinusoidal AC, but square-waves.
If you do th
Can someone please help me out, I remember an article from some scanned
book from the 60s where a set of neon lamps were connected in a matrix with
clever biasing and pulses on the row & column could toggle an individual
lamp. I thought it was the GE glow lamp manual but it seems not.
--
You rece
