I saw that the seller is also selling newly manufactured nixies with part
number MX-57X. Perhaps these two are not really "vintage" nixies but are
just prototype verrsions of the MX-57X tubes? They look very similar in
design.
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BTW, here is a link to the NASA page; there's ongoing research even today:
https://nepp.nasa.gov/whisker/
On Saturday, September 19, 2020 at 6:34:33 PM UTC-7 gregebert wrote:
> NASA did extensive research on tin-whisker growth back in the 1960's.
> Apparently, tin is more susceptible to
NASA did extensive research on tin-whisker growth back in the 1960's.
Apparently, tin is more susceptible to growing whiskers than other metals;
I dont know the specific reason. The growth was proportional to the
electric-field strength, and along the lines of the field. Due to
impurities,
Hi Greg!
Regarding the "The mechanism is metal-whisker growth, which forms a
metallic bridge in the presence of an electric field." - do you have more
information on this topic? From what I've read about whisker growth, it is
usually formed under mechanical stress, oxygen or humidity is
gregebert, I finally managed to find some time to hand solder an LFCSP_LQ
package. Achievement :)
What worked for me, it is easy and reliable: clean pins of chip with
alcohol, apply no-clean flux, apply normal soldering wire on the tip of the
iron (I think melting point 215-220 celcius), slide
The microscope is: Andonstar V160 2MP USB Digital - nothing special, but
with fully licensed Software AMCap 9.23
The stand is ab bit shaky, wobbly and fiddly for manual focus - but it is
enough for my needs.
Pramanicin schrieb am Samstag, 19. September 2020 um 15:46:11 UTC+2:
> Those are great
Those are great pictures! What microscope are you using?
Sent from my iPhone
> On Sep 19, 2020, at 04:04, Lucky Ace Kandoo
> wrote:
>
>
> Today i dismantled the two tubes and put them under the microscope - these
> are the optical results. The digits "1" and "7" are always badly affected.
