Dear All, Can anyone identify this
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mystery photo-interrupter for me? It comes from a custom laboratory instrument made at a German university, for which I have no documentation :-{. The interrupting device is a 'spoked' code wheel. That and the device's six pins make me fairly sure it must be an encoder type. The closest looking devices I could find browsing RS, Farnell, Mouser & DigiKey websites are the Honeywell HOA0901 & HOA0902
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but their 4 sensor side pins are arranged to define a parallelogram rather than truncated pyramid mine has. Any ideas?Many thanks Tom Crane
Ps. The email address in the header is just a spam-trap.