I was laying out a PCB for some video experiments.
While doing this I thought it might be interesting for others, too.
I am not a big fan of solderless breadboards, so this pcb is aimed to use the layout of the breadboard while soldering the parts.
The idea is that you an solder a prototype and connect it easily to the headers with wires or jumpercables, while the common building blocks are pre-made. (see below)
The voltage sources are placed near the rails of the ‘breadboard’ , so you can connect +12v or +5v to them. The GND rails are pre-connected.
Note that the values of most components are not yet correct and the features are not yet set in stone. Early stage design!
I want to be able to do CMOS / lunetta style video experiments, LZX type format, and possible standalone composite video stuff.
Most features are based on the Cadet and Castle schematics.
2x input buffer
2x output buffer
2x jack aux
2x Pinheaders for all function connections. (I’ll add a legenda somewhere)
The power pinheader has : +12v, +5v, +1v, +0.5v, -12v
Header access to the jacks and jack switches
I want to make the opamp configurations in such way that they can be multi functional, let’s say as buffers, comparators of amplifiers. I still have to find a good method for this.
But this will make the board more open-ended.
I might add composite video, @BastienL has given me some tips about this already.
The aim is to make several versions of the boards:
a medium sized board (like the picture above)
a big board - more protospace and features
an eurorack pcb&panel for more permanent prototypes
If any of you have tips / hints / feature requests, please tell me!
I want to make this board as useful as possible, for everybody!
The project is also posted here, as a discussion.