As seen in our September 2016 issue of Nuts & Volts Magazine. Read the article at the link below!
Build the Numitron — A Six-Digit Clock by Bill van Dijk
This six-digit, beautifully designed timepiece showcases cold war era components — Numitrons instead of Nixie tubes — along with modern LEDs and a Microchip PIC to create not only a useful clock, but a great conversation piece as well.
Kit Includes:
- 1 – 1,000 µF/35V Capacitor
- 1 – 220 µF/50V Capacitor
- 1 – 10 µF/16V Capacitor
- 6 – 0.1 µF Capacitors
- 6 – 0.1 µF Capacitors SMD
- 2 – 12 pF Capacitors SMD
- 2 – 20 pF Capacitors SMD
- 1 – 1N5819 Schottky Diode
- 1 – 1N4001 Diode
- 2 – 1N4148 Diodes
- 1 – 1A Fuse
- 1 – PIC16F876A-I/SO Programmed Chip
- 1 – CD4017BE Decade Counter
- 1 – LM2575T-5 Switch Mode Regulator 5V
- 1 – SN74HC164N Eight-bit Shift Register
- 6 – CD4511BNSR BCD to Seven-Segment Drivers/Latch SMD
- 1 – ULN2803A Darlington Transistor Array
- 1 – Power Jack
- 1 – Two-pin Straight with Jumper Block
- 1 – Five-pin Angled
- 1 – 330 µH SMD Power Inductor
- 60 – UltraBrite LED 5 mm Purple, Extras Included
- 6 – IV-9-Numitron Tubes
- 8 – 1.6K Resistors
- 5 – 10K Resistors
- 3 – 1K Resistors
- 2 – 15K Resistors
- 8 – 100 ohm Resistors
- 3 – Switch Long Tactile Button
- 1 – 4 MHz XTAL, Low Profile
- 1 – 32 kHz Watch-XTAL
- 1 – PCB
- 1 – 12V 1.5A Power Supply
Click Here for User Manual, Construction Manual, Full Schematic, Video of Clock Patterns.
A Partial Kit is Available: Numitron Clock PCB and Programmed Chip