On Oct 12, 2014, at 2:53 PM, David Forbes dfor...@dakotacom.net wrote:
No magnification? You nuts.
I bought a wonderful Bausch Lomb stereo zoom microscope ten years ago,
I'm with David. I bought a cheap Chinese stereo zoom boom microscope several
years back, and find it indispensable.
As
Darin,
Measure what you have for voltage from the power supply unit. If it is a
simple unregulated power supply voltage can be above 12V. Cheap power
supplies are often built of a transformer, four diodes and a capacitor.
Sture
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sink.
No noise and no electrical power needed
eric
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From: neonixie-l@googlegroups.com [mailto:neonixie-l@googlegroups.com] On
Behalf Of Dman777
Sent: woensdag 8 oktober 2014 3:19
To: neonixie-l@googlegroups.com
Subject: [neonixie-l] Nixie Clock Cool Project- a few questions
I have a 6
Hi,
Dman777 wrote:
4) I don't understand why, the heat concentration is in the dead center of
the clock, but the source of what I think is the source of the heat...the
7805 voltage regulator... is of to the side of the source of the heat
concentration area.
The 7805 only powers the
heat, a huge mass
of metal does the best job, in my humble opinion.
Chuck
Original Message
From: a...@blinkenarea.org
To: neonixie-l@googlegroups.com
Subject: Re: [neonixie-l] Nixie Clock Cool Project- a few questions
Date: Wed, 08 Oct 2014 16:46:01 +0200
Hi,
Dman777 wrote:
4) I
If you really want to take away some heat, a huge mass
of metal does the best job, in my humble opinion.
For example, this 51-pound monster:
http://www.ebay.com/itm/201187133796
- John
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Have you measured the power consumption of the clock ? The 6 nixies will
consume about 2 watts, and everything else is dissipated as heat inside the
case. That will give you a rough idea if you have a thermal problem.
If you are around 5 watts, then I'd say you're probably OK. My first nixie
My first question is “How hot is it?” If you can keep your finger on it,
it is probably OK, but you should use a thermometer instead of just saying
“hot”.
My prejudice is that the only likely sources of excessive heat are the 7805
and the cpu, but they are both too far away. The only
On 09 Oct 2014, at 02:09, Dman777 darin.hens...@gmail.com wrote:
And trace erosion Really? I've never heard of it, much less of having
it caused by airflow. Other things can degrade traces, poor processing,
chemicals, acidity, but airflow? MAYBE compressed air over the course of
Dman clearly has ideas of his own about electronics, misguided as they may
be. He asks plenty of questions here -- usually dominating the topic list
-- that show exactly how little he understands about electronics. If he
wants to butcher up his clocks, let him have at it. If he chooses not to
, October 08, 2014 11:48 AM
Subject: [neonixie-l] Nixie Clock Cool Project- a few questions
I have a 6 digit Nixie ZM5660 clock that I got from pvelectronics that is
beautiful and super cool. Everything is perfect about it. However, since it is
multiplexed there is one spot that has a very high
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