Jump to page content

KBK update for Tuesday, 20th July

Revisiting the Electronic Engineers Master catalogues to look for anything that got missed on initial inspection, turned up Amphenol’s 601 Series of keyboard switches. Details were vague, but the specifications indicated that reed switches were most likely. More curiously, the advertisement suggested that Amphenol was part of Bunker Ramo, and thus 601 Series could relate to their reed switch patent. This turned out to be true: all the keyboard switches attributed to Bunker Ramo were in fact Amphenol products.

In fact, 601 Series happens to be the switch that Maxi-Switch sold as Series 2700: the Series 2700 photo matches the patent exactly, and the descriptions of the switch also match the patent and how Amphenol advertised it themselves.

Further investigation has found a single advertisement for a lower-cost Amphenol switch, with only one model: 601-M11A. This will be the double break bifurcated-contact type that was sold as Maxi Switch Series 3100. These have been attributed until now to Bunker Ramo, and more properly they should be attributed to Amphenol.

Thus, another Maxi-Switch type that one could have argued was their own innovation, turns out to be someone else’s product again!

View within the updates for 2021

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: