VFD Modular Clock


VFD Modular Clock

VFD Modular Clock parts list

The VFD Modular Clock is delivered as a kit, and the user is required to solder all the parts to the PCBs.

There are two versions of the base board available: Version 1 and version 2 (mkii), and the parts list is different for the two.

Base Board Parts List - Version 2 (mkii)

Click on the pictures for a larger view

  • 1x Base board PCB with SMT components soldered on
  • 1x USB mini-b cable
  • 1x CR1220 battery
  • 1x Keystone CR1220 battery holder
  • 2x Angled Tactile Switch
  • 1x Slide Switch
  • 1x Piezo
  • 1x 1.8mm LED RED
  • 1x 1.8mm LED other color
  • 1x UF4004 Diode
  • 1x 22µH Inductor
  • 4x 0.1µF Ceramic Capacitor (blue/yellow)
  • 1x 33µF Electrolytic Capacitor (black)
  • 1x 10µF Electrolytic Capacitor (blue)

Resistors

5 % resistors:

  • 1x 1/2W 0.2Ω / 0.27Ω
  • 5x 1/6W 10kΩ (Brown, Black, Orange, Gold)
  • 2x 1/6W 47kΩ (Yellow, Violet, Orange, Gold)
  • 2x 1/6W 1kΩ (Brown, Black, Red, Gold)

1 % resistors (blue)

  • 1x 1/6W 1% 10kΩ (brown, black, black, red, brown)
  • 1x 1/6W 1% 240kΩ (red, yellow, black, orange, brown)

SOCKETS and HEADERS

  • 1x PLCC-32 socket
  • 1x DIP-8 socket
  • 1x 2x9 Female Header
  • 1x 2x11 Female Header

Chips

  • 1x 24LC512 EEPROM
  • 1x MAX1771 Boost Converter chip
  • 1x FQP50N06L MOSFET
  • 1x HV5812 PLCC-32 VFD Driver

SCREWS and SPACERS

  • 4x M3 8mm nylon screw
  • 4x M3 10mm nylon spacer
  • 1x M3 nut
  • 1x M3 8mm screw

Base Board Parts List - Version 1

Misc Components: (click on the pictures for a larger view, or clickhere for a print-friendly page with large pictures)

  • 1x Base PCB with microcontroller and VFD driver soldered on.
  • 1x 9V AC Adapter 100-240V, US Plug
  • 1x CR1220 battery
  • 1x Keystone CR1220 battery holder
  • 2x Angled Tactile Switch
  • 1x 2.1mm DC power jack connector
  • 1x 32kHz Clock Crystal for RTC
  • 1x Female Header 2x10 pins
  • 1x Female Header 2x9 pins
  • 1x PTC Fuse (yellow, wide legs)
  • 1x DS1307 RTC chip
  • 1x Slide Switch
  • 1x Piezo
  • 1x 5V Regulator
  • 1x MC34063 Boost Converter chip

Diodes:

  • 1x 1N4001 Diode
  • 2x 1N5819 Diode

(the diodes are identical in appearance, but the number is printed on the side)

Capacitors:

  • 1x 1500pF Ceramic Capacitor (orange)
  • 3x 0.1uF Ceramic Capacitor (blue)
  • 2x 47uF Electrolytic Capacitor (brown)
  • 1x 330uF/25V Electrolytic Capacitor (black)
  • 1x 330uF/50V Electrolytic Capacitor (black)

Resistors:

  • 1x 1/4W 0.22Ω (red, red, gray)
  • 1x 1/6W 10kΩ (Brown, Black, Orange, Gold)
  • 1x 1/6W 47kΩ (Yellow, Violet, Orange, Gold)
  • 1x 1/6W 1.6kΩ (Brown, Blue, Red, Gold)
  • 1x 1/6W 180Ω (Brown, Gray, Brown, Gold)

PS: Older kits were shipped with a 2.4kΩ (Red, Yellow, Red, Gold) instead of the 1.6k resistor.

Inductors:

  • 1x Power Inductor 2.2mH (marked 222 on top)
  • 1x Power Inductor 330uH (marked 331 on top)

IV-17 Shield Parts List

  • 1x IV-17 Shield PCB
  • 4x IV-17 VFD Tubes
  • 4x 1/4W 51Ω (Green, Brown, Black, Gold) resistor
  • 1x Male Header 2x10 pins
  • 1x Male Header 2x9 pins