Maybe take the numitron idea even further and use minitrons? You can find them
pretty easily in old avionics equipment, and they’d probably last longer in
that type of environment anyway.
> On Apr 2, 2022, at 2:02 PM, Michail Wilson wrote:
>
>
> I agree with, well, almost everything.
>
>
I agree with, well, almost everything.
I build several items using Numitrons (specifically) IV-9 (of which I have a
hoard of them), but I don’t use 595’s to drive them, but I don’t remember
specifically why I chose a diff driver. Well, you’re supposed to use them.
Instead, I use TCL5916
I agree fairly strongly with Pramancin - I think Numitrons would be the way
to go. They are exceedingly rugged (originally used in fighter planes,
among many other applications), long-lived (10,000+ hours at maximum
brightness, converging to infinity at reduced drive voltages), and are very
I've never had problems with payments on ebay so far, but i have to admit
that i think ebay is getting worse and worse every day.
My biggest issue is that ebay is actively hiding items that can't be
delivered to your address. I have multiple addresses for shipping, but only
the primary one is
