Dave and Mikes neat nimo stuff

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David Weiner

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Oct 31, 2018, 2:37:05 PM10/31/18
to neonixie-l
one tube nimo clock you need to do you own programing (to far for Mr dave)

IEE nimo display drive shows how you can use a CD4028 to drive a nimo(we switched to a royer osc to drive the filaments later ) ( these resistors get too hot not elegant)TTL level shifter are the transistors 


westdaves one digit nimo clock built with a one digit chip with a BCD output from pete hand pieced together from these pages

4 tube nimo filament drive from mike mmoorrees (it works )

one digit nimo drive.....use a light bulb(1.2 volts) to test for right voltage , adjust voltage by unwinding the 8 turns to the correct voltage

mikes 200 vdc power supply (get them on eBay ) NK01B this plugs into his MPO1 voltage multiplier to get the 1500 vdc

photo of the working  westdave nimo clock uses a all spectrum electronics 4 digit clock chip that puts out BCD (there is also a 6 digit ) *but who has 6 nimos for a clock*

photo of the westdave one digit nimo clock,  hint the chrome case is a shoe shine polisher from the 50's
mikes 1 digit clock no programed chip .jpg
cd4028 drives nimo.jpg
1 digit nimo clock.jpg
4 tube nimo fil drive.jpg
one digit nimo royor osc fil.jpg
pws 200vdc.jpg
westdave 4 digit nimo clk all spectrum chip.jpg
westdave i digit nimo clk.jpg

Dekatron42

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Nov 1, 2018, 6:25:42 AM11/1/18
to neonixie-l
The original circuit diagrams for Mikes NIMO designs can be found here on Mikes webpage: https://threeneurons.wordpress.com/miscellaneous-projects/ just scroll down a bit, there you can click them to get high resolution pictures, also the designs have thorough texts describing them. All of Mikes kits can be found here: https://threeneurons.wordpress.com/kits/ with circuit diagrams and thorough text describing them. A real gold mine of information!

The "Shoe Polisher" enclosure looks nice!

/Martin
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