Hedghog PSC is a homebrew programmable standards converter. From a 625 line input is capable of generating a wide range of Television line standards. It is coupled with a versatile programmable modulator that uses two MC44BS373. On this page you will find the files required to build it.
All material including Downloads on these pages are provided 'as is' without warranty of any kind, either expressed or implied.
All Resistors, Capacitors and Inductors are 0805 size.
All Capacitors are ceramic multilayer types.
Where given manufacturers part numbers are given as examples alternative parts may also suit.
The PCB is double sided and measures 100 mm X 89.5 mm.
Link to uploaded Gerber files on PCBWay
July 2021
I have updated the FPGA and PIC programming files.
The update allows the converter to convert from 525 lines as well as 625 lines. It automatically detects the input standard. Also included in the update are some test patterns. The patterns are applied before the converter so are available on all output standards.
Menu description (.pdf)
Circuit diagram (.pdf)
Component list (.pdf)
Component layout top (.jpg)
Component layout bottom (.jpg)
Front and rear panel legends (.pdf)
FPGA program file (.jic)
Microcontroller program file (.hex)
Hedghog PSC thread on Golborne Vintage Radio Forum
Hedghog PSC thread on VRAT Forum
Hedghog PSC thread on UKVRR Forum
