The ringing is coming directly from the tubes.
-Dan
On Thu, 20 Sep 2012, Adam Jacobs wrote:
I've definitely used a few inductors that buzzed nastily before. The sound of
a coil contracting around a ferrite repeatedly.
That's one advantage of using one of those ugly acrylic box cases. :) Great
at noise dampening.
-Adam
On 9/20/2012 11:24 AM, jb-electronics wrote:
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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