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.
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| Blank PCB of RS 232 TTL level converter |
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| PCB of 72 pin SIMM adapter |
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| 72 pin SIMM adapter with soldered SIMM socket |
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| 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! :)
More information are coming soon. Stay tuned! :)
Congrats to you for purchasing Positiv 20 spray, it works really great. prototype pcb assembly
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