Here is the VFD display board:
It mounts the vfd, filament dropping resistors 5 volt regulator the clocking source,and drivers electronics for the VFD. This module can be swapped for another led custom module if desired.
This module contains a 4 bit7 segment decoder for the display, and some additional filter caps.
This board contains 4 20 pin octal buffers.
This is the 4 bit latch module.
This is the register to latch interface module.
Remember all the above modules plug into each other-so no additional wiring is needed.Male and female headers on each board allow connections.
More coming-this page a work in progress....