I had some used NL841 tubes that had not been run in 25 years that glowed below
the mica but cleared up after about 24 hours and have been fine since. Didn't
have the bright blue. Are you running over voltage?
Jeff
-------- Original message --------
From: Nicholas Stock <[email protected]>
Date: 5/26/2016 7:13 PM (GMT-06:00)
To: [email protected]
Subject: [neonixie-l] Misbehaving NL803
Anybody seen a tube do this before? Blue corona around every digit.:.needs a
high strike voltage until digit ignites otherwise the pin below the mica disc
glows instead....odd. Otherwise the tube looks clear and unused.....
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