Lot of 260 Archer/Radio Shack breadboards, used, in good condition and sold with a 30-day unconditional warranty. Made in the USA, my guess is that they're from the late 1980's.
These were used in an electronics lab class at a well-respected university, and many have a similar pattern of more heavily used tie points in rows 15-20, the pictures show that pattern on two different breadboards. The plastic housings have discolored over time, and although they're all "clean", there is the usual slight embedded grime you'd expect on a board that saw occasional classroom use over many years. (They had approximately 5000 of these breadboards, I believe each student built multiple projects over the course of the term and then disassembled them all at the end.)
These can be interlocked, and this is enough to do a 4 foot by 3 foot area, or ten individual grids a little larger than one square foot (a grid six wide and four high is 12" x 14"). Perfect for a coffee-table Space Invaders or Asteroids layout or something equally pointless and awesome.
Details:
- Experimentor 350 Series breadboards (on the label it's spelled "Experimenter")
- Archer part number 276-175
- 270 Tie Points
- 12 Rows
- Dimensions when fitted together 3-1/2" x 2"
- Standalone dimensions 3-5/8 x 2-1/8"