ZM1080 Nixie

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Mullard horizontal view nixie with 13 mm. digits 0-9. No decimal point is provided. It has a wire ended B13D base. The pin out (pins are numbered clockwise from the gap, looking at the tube from below) is :-

Pin	1	2	3	4	5	6	7	8	9	10	11	12	13
Electrode	k(1)	k(2)	k(3)	pr	k(4)	k(5)	k(6)	k(7)	k(8)	nc	k(9)	k(0)	a

The 'pr' primer pin can be used to accelerate the ignition times of cathodes by taking it via an 18 Mohm resistor to a -180 V supply. Cathode currents should be in the range 1.5 mA (for full coverage) to 3.5 mA (average). Peak current should not exceed 12 mA.

A off-site pointer data sheet can be found at Frank Philipse's excellent site and another on Ake Holm's site

This tube was kindly loaned for photography by Dr. Dave Knight. He has an excellent page on nixie tubes.