Well Morris spent some time in Whangarei, which is in the North Island ---
I can safely say this, being from the South Island of NZ........
Good one, Morris, BTW! Damned impressive!
DaveB, Christchurch, NZ
----- Original Message -----
From: "Quixotic Nixotic" <[email protected]>
To: <[email protected]>
Sent: Monday, January 06, 2014 2:32 AM
Subject: Re: [neonixie-l] My latest clock
Is there something about you we should know, Morris?
John S
On 5 Jan 2014, at 00:35, Morris Odell wrote:
Hi all,
I was in New Zealand recently and visited the Clapham National Clock
Museum in a town called Whangarei. One of the items there caught my eye,
it was a German skull clock from the 1920s as seen here. I thought a Nixie
version would be just the thing for my office at the Institute where I am
a senior physician. A couple of weeks of intensive work over the summer
break and here it is:
http://youtu.be/6rHZqU2x3EA
The skull is a plastic anatomical model which has been surgically modified
to fit two dekatrons in the orbits. There's also a small speaker in the
cranial cavity to sound the ticks and the Westminster chimes. The devices
in the nasal cavity are a LED and a PIR sensor to switch on the display
only in the presence of warm live humans. The red button on the front of
the box is the alarm switch. The time display is made using Russian IN-17
tubes multiplexed in 3 groups of two. In the box is a PCB with an AVR
micro and appropriate power supply and interface electronics for the tubes
and speaker. The dekatrons are purely ornamental and not part of the
timebase as in previous clocks I have made. As this clock is going into an
internal office there's no GPS receiver included so it is set manually and
gets its timing from the mains frequency.
Happy New Year to all,
Morris
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