[jimnotgym]

Does anyone else remember when designing and assembling your first pcb involved marker pens and ferric chloride?

[MeteorMarc]

Yes, but not how to copy the paper design to the pcb with the marker pen. I am pretty sure a did the drilling after the etching.

[olelele]

I made an old school linear psu for my arp 2600 clone like that. I etched w something else :)