Jump to page content

KBK update for Wednesday, 30th October

Some people will have noticed that certain Micro Switch switches, in particular Series KB, can be found marked with pairs of symbols, either in addition to (with Series KB) or in place of (with SM Series) the date code.

I have now made a chart of symbol codes. So far, no meaning can be ascribed to them. Suggestions include calibration markings and date codes, but they do not appear to work as either. If they are batch markings, this was either a specialist or very short-lived process, as these symbols are seldom seen.

Another mystery.

View within the updates for 2019

Comments

None yet.

Add comment

Name:
E-mail:
Website:
Caption:
Comment:

Plain text only; for hyperlinks use the form “[URL caption]”.

This site is about: