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11/3/13

1176 DC MEASUREMENTS

1176 & NIXIE TUBE DMM

I started to measure the DC potentials inside my 1176 kit when I remembered I had this old nixie tube digital multimeter. After digging it out from underneath a small mountain of gear I proceeded to dust it off and see if the little beast even worked. After probing around for a while I discovering that it wasn't very accurate when it measured only 9 volts for the negative 10 volt source. So, I decided to abandon ship on that idea.

 CLASSIC VACUUM TUBE SCOPE

But, while I was busy reminiscing into the technical past I decided that I should also use my old Tektronix vacuum tube oscilloscope at the same time. I ran a few different signals through the 1176 until it made a good signal on the CRT.


THE GLOW OF TUBES

This older gear is just too cool! The scope is an absolute engineering work of art! The glow inside the cover was so enticing that I just had to take a quick shot of the tubes.






INSIDE THE NIXIE DMM

The Nixie tube DMM is also very cool inside. It's made up of logic IC's, open frame rotary
switches, carbon composition resistors and a pair of Nixie tubes. How cool is that.....






PROGRESS

Finally, after an hour or so of being completely distracted by all of the old test gear, I did actually manage to make some useful DC measurements inside the 1176. I will post them soon.

Please stay tuned,
Trenton