Hi there,
On Thu, 20 Sep 2012, threeneurons wrote:
Other than brightness, some have observed mechanical 'singing' coming
off
the larger tubes, like IN-18s.
This is the most annoying thing about multiplexing. You can hear the
in-18 tubehobby kit singing from across a room.
might also be the switch mode power supply. I have a couple of small
power supplies from TaylorEdge who are remarkably loud.
Anyone delling direct drive in-18 kits?
Take a look at Dieter's IN-18 Blue Dream masterpiece:
http://www.nixiekitworld.com/
Best regards
Jens
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