Content for VFD

VFD

A vacuum fluorescent display (VFD) is a display device once used commonly on consumer electronics equipment such as video cassette recorders, car radios, and microwave ovens. A VFD operates on the principle of cathodoluminescence, roughly similar to a cathode ray tube, but operating at much lower voltages. Each tube in a VFD has a phosphor coated anode that is bombarded by electrons emitted from the cathode filament. In fact, each tube in a VFD is a triode vacuum tube because it also has a mesh control grid. Unlike liquid crystal displays, a VFD emits a very bright light with high contrast and can support display elements of various colors. Standard illumination figures for VFDs are around 640 cd/m2 with high-brightness VFDs operating at 4,000 cd/m2, and experimental units as high as 35,000 cd/m2 depending on the drive voltage and its timing. The choice of color (which determines the nature of the phosphor) and display brightness significantly affect the lifetime of the tubes, which can range from as low as 1,500 hours for a vivid red VFD to 30,000 hours for the more common green ones. Cadmium was commonly used in VFDs in the past, but the current RoHS-compliant VFDs have eliminated this metal from their construction.

DIY Zambretti Weather Forecaster on VFD Display

“Weather forecaster, which displays the weather forecast on the screen in the form of descriptive text. Story In one of my previous videos, I described how to make a cheap Advanced Barometer, used by sailors, yachtsmen, etc. It is a …

Easiest Way to Connect Any VFD Serial Display to Arduino

“This is a nice retro-look weather station and clock that I made with a POS VFD display for which I did not have any data and information. The device is very simple to build and contains only a few components …

VFD Display for the TI83+ Calculator

“This project builds upon the PIC/TI83+ interface developed by ThomasHenry (see Nuts & Volts August 2013 A Mathematics Engine for Microcontrollers). Acknowledgment, appreciation, and kudos to him for writing the TI-library for Great Cow Basic that made this project …

VFD Serial Futaba M202SD01 Arduino

“Using an old VFD serial communication display for use with Arduino based microcontrollers. Story I remember back in 2018 that I got this screen (from an old guitar pedalboard) and didn’t know how to make it work. I was …

Shield for Arduino From Old Russian VFD Tubes: Clock, Thermometer, Volt Meter…

“This project took almost half a year to complete. I cannot describe how much work went into this project. Doing this project alone would take me forever so I had some help from my friends. Here you can see our …

Raspberry Pi Controlled DC Load

“A DC Load is useful for testing lots of different things. If you have a power supply and want to make sure it’s able to deliver its fully designed potential, then you can use a DC Load to test …

PoE-Powered VFD Tube Clock

“This is a vintage VFD tube clock that uses Ethernet for both power and data. The power is provided using 802.3at PoE+ and a Molex PD Jack that contains both integrated magnetics and a PoE Type 2 PD controller …

Temperature and Humidity Meter Using IV-11 VFD Tubes

“The displays are driven with a daisy chained shift register. The converter on the left generates the 24V rail and the centre converter provides 1.5V for the filaments. Both converters can be disconnected via jumper for initial setup and …

Vacuum Fluorescent Display Clock

“Despite the fact that it’s been around for a long time, the vacuum fluorescent display (VFD) is still a very attractive type of display. It’s viewable in bright light but is easily dimmable for comfortable viewing in the …

VFD Alarm Clock

“After the successful completion of the XIV Nixie Clock which was Direct/Static Driven, I was keen to start work on a new clock which was based on the Multiplexing(Dynamic) or MUX principle of operation, known also as Muxing …