Quote:
Originally Posted by turretslug
they look rather like Philips codes to me.
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Hi.
That's what I was wondering. The twelve digit code with four digits, space, three digits, space and five digits (4822 212 21513) definitely looks to be a Philips code. You very often see the 4822 XXX XXXXX codes in Philips service manual parts lists.
I also think, as others have pointed out, it's a type of thick film hybrid circuit.
Regards,
Symon.
EDIT: From a long time back, I may be wrong, but I recall the Philips KT4/K40 (System 4) used similar looking thick film modules on the microcontroller board particularly the one with frequency synthesis tuning (TRD IV).