Hi David,
I do indeed have a scope and am starting to get the kind of results i
wanted now I have changed out the PSU for a more capable one.
So far, from my testing:
HV 200V.
Anode resistor of 3k9.
Voltage across anode resistor during pulse is between 42 and 48v (depending
on the individual tub
Hi,
The gremlins seem to be largely PSU related - the oscilloscope is showing
weird problems like the voltage decaying during the pulse (and not in the
way you'd normally expect once the nixie conducts).
I have swapped to a different HV PSU module, which seems to have the
capability to generate t
Hi Martin,
Via Amazon from a German bookseller (who had also listed it on abebooks).
I'm fairly sure it's genuine (it certainly looks and smells like a 1970s
book, complete with the vintage paper feel).
A number (maybe 20) of the early pages are blank, so I suspect it's a
quality control issue ;
I would also like to trade nixie tubes. My short trade list:
ZM1000 - NOS
ZM1010 - rare, very original nixie (NIB)
ZM1042 - big digit, NIB Siemens
B54364 - rare NOS
LC511 - NIB
LC513 - NIB
LC513A - NIB
LC531 - NIB
LL561 - NIB
LD955A
IN1 - NIB
IN8-1 - very rare (known only 8 tubes
I will convey a story my engineering manager once told me back in the
70's. He had a friend who wanted to measure his internal body resistance.
He did so by sticking a pin through the skin on both the right and left
hand, then used a VOM (vacuum tube volt-ohm meter) to measure the
resistance.
Now that's a lot of work! Whose wood shop was that? Very professional
operation...
Nick
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