How about you check the tolerance % of the resistors. Did you use 10%, 5%
etc ?
And, how about you measure the voltage drop across each of the anode
resistors in turn.... and with different digits ON.
BTWQ, that current increase is not large.... BUT, it may not be spread
evenly across the tubes; what if it is one tube drawing all the extra?
Just some ideas for going on with until you get more replies...
regards,
john K.
----- Original Message -----
From: "Jarek" <[email protected]>
To: "neonixie-l" <[email protected]>
Sent: Wednesday, March 09, 2011 5:06 PM
Subject: [neonixie-l] Large nixie display, current discrepancies
...clip....
Would a +0.16mA increase over optimal current harm the tubes? I'm a
little paranoid due to the scope and expense of this project, and I
would like the tubes to last as long as possible. Each tube is driven
directly, no multiplexing, with a standard Russian 74141 clone chip
per tube.
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