I am surprised they lasted so long!
-joe
On Jan 30, 2017 12:20 PM, "TheJBW" wrote:
Joe,
I actually discovered exactly this late last night. Hadn't gotten around to
replying yet. Turns out that the simple footprint got flipped at some
point. I didn't think that the tubes
When I had a tube that took 15ma to drive it, I discoved that I had the two
'anodes' wired backwards. The tube had a short life, in the order of weeks
running full time.
-joe
On Jan 23, 2017 1:41 PM, "TheJBW" wrote:
> About 1.5years ago, I built this really nice stereo
the common useage developed.]
John Kaesehagen
Australia
- Original Message -
From: Instrument Resources of America
To: neonixie-l@googlegroups.com
Sent: Tuesday, January 24, 2017 6:52 AM
Subject: Re: [neonixie-l] IN-13 Lifespan
As far as I know, one can NOT build a bar-graph
As far as I know, one can NOT build a bar-graph, or neon lamp style,
LED, or any other indicator type, of VU meter. (Perhaps you built a
'level indicator' of sorts.) The very definition of a VU meter (at least
the professional type) involves the mechanical ballistic damping, and
mechanical
About 1.5years ago, I built this really nice stereo vu-meter using IN-13
bargraph tubes. About two weeks ago, one of the tubes made a "tink" sound
and the current control went away -- the tube stayed ignited, but the "bar"
was stuck at the bottom. I noticed that the spacer at the far end of the