Nixie.txt Get the Time https://time.is/Chisago_County Bought 18 IN-2 Nixies, "Anod" In-2 Soviet analogue of the Burroughs B4021 miniature Nixie tube. Labled: The Symbol is a stylized G, kind of a circle around a "Pic Ax" head. The first part is probably a date code, posibly month / year. IV G 72 HH-2 VII G 73 HH-2 198 pins total for 18 IB-2 tubes Good Pictures on IN-2: https://gra-afch.com/catalog/other-components/nixie-tubes/in-2-nixie-tubes/ Digit size 9mm Bulb size 31×35mm IN-2, IN-8 Socket https://i.pinimg.com/originals/98/6f/c4/986fc4df98e4d768210d74e2f44939af.jpg In English http://www.tube-tester.com/pic/eby/cont/data-IN-8%20soc-engl.pdf 11 pin 12 pin positions or 30 deg/pin, Pin 12 missing. Pins count 1 to 11 clockwise bottom view. Pin Circle 9.5mm diameter, 0.37402" or 3/8" Tube Diameter 19mm diameter, 0.74803" or 3/4" Top of digit IN-2 pin 7 Bottom of digit IN-2 pin 1 Anode IN-2 pin 11 Evacuation IN-2 pin 12 position Front of digit IN-8 pin 6 IN-2 Specs: 170V Ignition 200V Max 180V Nominal 170V Min 150V Drop Out 2.0mA Max 1.5mA Nominal IN-8 Specs: 170V Ignition 200V Max 180V Nominal 170V Min 150V Drop Out 3.5mA Max 2.5mA Nominal Number sequence Front to Back 3 8 4 7 9 5 2 0 6 1 ()=Pin# Top View Top Of Number 7 (7) 7 6 (6) ^ (6) 6 5 (5) /|\ (5) 5 4 (4) | (4) 4 Anode (11) IN-2 (3) 3 Red Bump | (2) 2 (1) 1 ()=Pin# Bottom View Top Of Number 7 (7) 6 (6) ^ (8) 8 5 (5) /|\ (9) 9 4 (4) | (10) 0 3 (3) IN-2 (11) Anode 2 (2) | Bump Red 1 (1) ()=Pin# Bottom View (1) 1 Red Bump | (2) 2 Anode(11) IN-2 (3) 3 0 (10) | (4) 4 9 (9) \|/ (5) 5 8 (8) v (6) 6 (7) 7 Top Of Number IN-12B http://danyk.cz/digitrony_en.html http://www.jb-electronics.de/html/elektronik/nixies/n_in12b.htm http://danyk.cz/in-12_01.png http://danyk.cz/in-12_02.png http://danyk.cz/in-12_03.png http://danyk.cz/in-12_04.png http://www.neonixie.com/in-12/datasheet-1.jpg Soviet nixie tube IN-12B (analog of western Burroughs B-5991, 8422 or Raytheon CK8422). https://web.jfet.org/2nix/B4998.pdf https://frank.pocnet.net/sheets/201/8/8422.pdf http://w140.com/Burroughs_B4998_B5092.pdf In English http://www.tube-tester.com/sites/nixie/data/in-12a.htm Tube size 21Wx31Lx28mmh Top View Not round. IN-12B Specs: 170V Ignition 200V Max 170V Nominal 170V Min 150V Drop Out 3.5mA Max 2.0mA Nominal ???? 200V 170V 150V 2.5mA 130V 120V Number sequence Front to Back 3 8 9 4 0 5 7 2 6 1 ()=Pin# Top View Top Of Number 6 (6) 5 (7) ^ (5) 7 4 (8) /|\ (4) 8 3 (9) IN-12B (3) 9 2 (10) | (2) 0 1 (11) | ->(1)Anode d.p. Yellow(12) Red ()=Pin# Bottom View Top Of Number (6) 6 7 (5) ^ (7) 5 8 (4) /|\ (8) 4 9 (3) IN-12B (9) 3 0 (2) | (10) 2 Anode(1)<- | (11) 1 Red (12)d.p. Yellow ()=Pin# Bottom View Yellow d.p.(12) Red 1 (11) | ->(1)Anode 2 (10) | (2) 0 3 (9) IN-12B (3) 9 4 (8) \|/ (4) 8 5 (7) v (5) 7 6 (6) Top Of Number xxxx tube sockets: xxxx https://en.wikipedia.org/wiki/Tube_socket#Duodecar_base xxxx Compactron 12 pin Tube Socket xxxx The Duodecar B12C base (IEC 67-I-17a) has 12 pins in a 19.1 mm diameter Pins: https://www.pvelectronics.co.uk/index.php?main_page=product_info&products_id=28 IN-2, IN-4, IN-8, IN-12, IN-18 Same Pins, NOT all the same layout as IN-2. .9mm-1.1mm tube pin diameter, 1mm nominal The Dual Row Ribbon Connector pins should work. Amphenol FCI, 609-1276 Digikey 609-1276-ND https://cdn.amphenol-icc.com/media/wysiwyg/files/drawing/76357.pdf Display arrangement for 6 tubes: DyTemp | Mn+123 | Monday +123 degF YrMnDa | 181231 | 2018/12/31 HhMmSs | 235959 | 23:59:59 Nixie-Driver_HV5122_HV5222_32Bit-Shift-Register_225V_OD_Microchip_PQFP-44.pdf CASCODE drivers. Neon Ring Counter Clock https://www.youtube.com/watch?v=F4v7IDIYiNQ&feature=channel http://www.pa3fwm.nl/projects/neonclock/ Shockley-diode ring counters http://www.dos4ever.com/ring/ring.html http://www.dos4ever.com/ring/neon_ring_counter.pdf Constant current source design https://groups.google.com/forum/#!topic/neonixie-l/gbJ0Beiu66I Burroughs Corp Nixie Driver Circuit Documentation: N101, Multiplexed Operation of Nixie Tubes http://worldpowersystems.com/ARCHIVE/Burroughs/images/N101-1.jpg http://worldpowersystems.com/ARCHIVE/Burroughs/images/N101-2.jpg http://worldpowersystems.com/ARCHIVE/Burroughs/images/N101-3.jpg http://worldpowersystems.com/ARCHIVE/Burroughs/images/N101-4.jpg http://worldpowersystems.com/ARCHIVE/Burroughs/images/N101-5.jpg http://worldpowersystems.com/ARCHIVE/Burroughs/images/N101-6.jpg http://worldpowersystems.com/ARCHIVE/Burroughs/images/N101-7.jpg http://worldpowersystems.com/ARCHIVE/Burroughs/images/N101-8.jpg N102, Nixie Indicator Tube Characteristics http://worldpowersystems.com/ARCHIVE/Burroughs/images/N102-1.jpg http://worldpowersystems.com/ARCHIVE/Burroughs/images/N102-2.jpg http://worldpowersystems.com/ARCHIVE/Burroughs/images/N102-3.jpg http://worldpowersystems.com/ARCHIVE/Burroughs/images/N102-4.jpg http://worldpowersystems.com/ARCHIVE/Burroughs/images/N102-5.jpg http://worldpowersystems.com/ARCHIVE/Burroughs/images/N102-6.jpg http://worldpowersystems.com/ARCHIVE/Burroughs/images/N102-7.jpg http://worldpowersystems.com/ARCHIVE/Burroughs/images/N102-8.jpg P101, Panaplex Numeric Panel Display Theory of Operation http://worldpowersystems.com/ARCHIVE/Burroughs/images/P101-1.jpg http://worldpowersystems.com/ARCHIVE/Burroughs/images/P101-2.jpg http://worldpowersystems.com/ARCHIVE/Burroughs/images/P101-3.jpg http://worldpowersystems.com/ARCHIVE/Burroughs/images/P101-4.jpg http://worldpowersystems.com/ARCHIVE/Burroughs/images/P101-5.jpg http://worldpowersystems.com/ARCHIVE/Burroughs/images/P101-6.jpg http://worldpowersystems.com/ARCHIVE/Burroughs/images/P101-7.jpg http://worldpowersystems.com/ARCHIVE/Burroughs/images/P101-8.jpg uMite Single Digit Nixie Driver Multiple Slave uMites communicate to the master through i2c 28 Pin uMite 1. Com1 For GPS 2. i2C For Master and Slave mode 3. 14 Nixie and Neon current sink driver pins 4. 1 PWM for brightness control 5. Console used to program bit patterns 555 flyback power supply https://www.instructables.com/id/High-Voltage-Power-Supply-for-Nixie-and-Valve-Tube/ Threeneuron's Pile o'Poo of Obsolete Crap https://threeneurons.wordpress.com/nixie-power-supply/hv-supply-kit/ http://www.decadecounter.com/vta/tubepage.php?item=16 Catode Driving of Nixie-Tubes http://swissnixie.com/index.php?go=cathodedriving Low cost dual Nixie Driver https://hackaday.io/project/69708-low-cost-dual-nixie-driver?mc_cid=937fe676c5&mc_eid=053b66ba0e Driving Nixies With Discrete Transistors 4 control pins can drive 12 NPN transistors https://web.jfet.org/nixie-1/NixieTransistors.pdf ----------------- ----------------------- ----------------- ----------------------- |TRUTH TABLE '138 |Active LOW | |TRUTH TABLE '238 |Active HI | |ADDRESS |ENABLE |OUTPUTS | |ADDRESS |ENABLE |OUTPUTS | |1 2 3 |4 5 6 |15 14 13 12 11 10 9 8 | |1 2 3 |4 5 6 |15 14 13 12 11 10 9 8 | -------- -------- ----------------------- -------- -------- ----------------------- | |__ __ |__ __ __ __ __ __ __ __| | |__ __ | | |A0 A1 A2|E1 E2 E3|Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7| |A0 A1 A2|E1 E2 E3|Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7| |x x x |H x x |H H H H H H H H | |x x x |H x x |L L L L L L L L | |x x x |x x L |H H H H H H H H | |x x x |x x L |L L L L L L L L | |x x x |x H x |H H H H H H H H | |x x x |x H x |L L L L L L L L | -------- -------- ----------------------- -------- -------- ----------------------- |L L L |L L H |L H H H H H H H | |L L L |L L H |H L L L L L L L | |H L L |L L H |H L H H H H H H | |H L L |L L H |L H L L L L L L | |L H L |L L H |H H L H H H H H | |L H L |L L H |L L H L L L L L | |H H L |L L H |H H H L H H H H | |H H L |L L H |L L L H L L L L | |L L H |L L H |H H H H L H H H | |L L H |L L H |L L L L H L L L | |H L H |L L H |H H H H H L H H | |H L H |L L H |L L L L L H L L | |L H H |L L H |H H H H H H L H | |L H H |L L H |L L L L L L H L | |H H H |L L H |H H H H H H H L | |H H H |L L H |L L L L L L L H | -------- -------- ----------------------- -------- -------- ----------------------- ----------------- ----------------------- ----------------- ----------------------- |TRUTH TABLE '137 |Latched Active LOW | |TRUTH TABLE '237 |Latched Active HI | |ADDRESS |LT|ENABL|OUTPUTS | |ADDRESS |LT|ENABL|OUTPUTS | |1 2 3 |4 |5 6 |15 14 13 12 11 10 9 8 | |1 2 3 |4 |5 6 |15 14 13 12 11 10 9 8 | -------- -- ----- ----------------------- -------- -- ----- ----------------------- | | |__ |__ __ __ __ __ __ __ __| | | |__ | | |A0 A1 A2|LE|E1 E0|Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7| |A0 A1 A2|LE|E1 E0|Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7| |x x x |x |H x |H H H H H H H H | |x x x |x |H x |L L L L L L L L | |x x x |x |x L |H H H H H H H H | |x x x |x |x L |L L L L L L L L | -------- -- ----- ----------------------- -------- -- ----- ----------------------- |L L L |L |L H |L H H H H H H H | |L L L |L |L H |H L L L L L L L | |H L L |L |L H |H L H H H H H H | |H L L |L |L H |L H L L L L L L | |L H L |L |L H |H H L H H H H H | |L H L |L |L H |L L H L L L L L | |H H L |L |L H |H H H L H H H H | |H H L |L |L H |L L L H L L L L | |L L H |L |L H |H H H H L H H H | |L L H |L |L H |L L L L H L L L | |H L H |L |L H |H H H H H L H H | |H L H |L |L H |L L L L L H L L | |L H H |L |L H |H H H H H H L H | |L H H |L |L H |L L L L L L H L | |H H H |L |L H |H H H H H H H L | |H H H |L |L H |L L L L L L L H | |x x x |H |L H |= = = = = = = = | |x x x |H |L H |= = = = = = = = | -------- -- ----- ----------------------- -------- -- ----- -----------------------