This is a prototype of our YS-101 single-digit clock, constructed with a 16F84A PIC microcontroller and a IEE FFD21 Minitron-style seven-segment filament display.
The FFD21 is packaged in a 15 pin DIP-style glass envelope, which contains a single seven segment display and a separate filament to represent the decimal point. This display is much larger than the common 3015F Minitron; digit height is 17mm and the envelope is 28mm high.
Visit our website at http://www.decadecounter.com/
cool :)
rockangel1967 3 years ago