Sunday, June 30, 2013

Home made printed circuit board (PCB) for prototypes

Finally I have purchased a Positiv 20 spray, thus making prototype PCBs became reality. It was a real challenge to etch a SMD compatible drawing (line width is 12-14 mils).

On the photographs below You can see it is realizable without any special equipment. The results can be improved in a dust free environment or using a photoresist PCB.

Blank PCB of RS 232 TTL level converter
PCB of 72 pin SIMM adapter
72 pin SIMM adapter with soldered SIMM socket
Mounted SMD flash chip
The TSOP 40 adapter is required for the upcoming project (SNES flash cartridge), while the SIMM adapter will be used in the Amiga RAM expander (one 72 pin SIMM for 4-8MB).

More information are coming soon. Stay tuned! :)

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