3 different size IC Pads, thru the center, on 2 of the boards.
0.5 mm on one.
0.65 mm on second board.
0.0635 mm and SOIC footprints on the third one.
My Proto-Chip website is back now!!
http://protoboards.theshoppe.com
Power and Ground bus traces around the boards, so bypass caps go anyplace.
Size is 1.8" X 1.8 " FR-4 material, no crappy thin copper!
Ground plane covers on back side.
I have 1 other SMD SOIC Protoboard, PROTO-CHIP, if these IC pads are too small....
The original Proto-Chip design from 1999. USE IT, Abuse it, cut it up...
Boards made just north of The EX-Palace of Auburn Hills, MI.
Made IN MICHIGAN!
Cut the board down, to configure the pads patterns, for mods to bigger board modules?
Building stompbox amp circuits?
Repairing or modifying anything, with a small circuit board?
ARDUINO PROTOTYPES???
Small Audio amplifier projects, Digital chips, build complete analog or Digital DIP and SMD circuits.
Discrete and SMD parts can be used.
Shipping is USA FREE USPS regular mail, or, $7 for Priority Mail
New boards but no returns.
These are MY OWN designs, Proto-Chip Surface Mount Protoboards, way before the other corporate brands came out.
Google the name, the website is back online!
Thank You!