Plug-In Breadboard,
Small 30 Column Type

Each of the five holes in every vertical column a to e
and f to j are connected internally, but not across the gap in
the middle. The four power rails are connected internally all
the way along the top and bottom marked by the red and blue
coloured lines. They are not connected together from top to
bottom.
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Recent Edit History
15-APR-2026: canonicalised, direct refs