KBK update for Monday, 2nd December

The meanings of two Micro Switch SD Series switch variants are now known (by way of 1001SD Series Chart 13 A, which depicts the assembly of SD18 tactile), although both variants are ones not previously encountered.

Successful disassembly of SD tactile model 1001SD11A1A (with only scuffing to the shell) shows that the plastic pin that engages with the shell is a mere 3.7 mm long and 1.6 mm in diameter, and the spring it presses against is 3.1 mm long and 1.55 mm in diameter. This is only marginally larger than the latching parts in RAFI alternate action switches.

View within the updates for 2019

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