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I'm looking for circuit diagram or the equivalent of an old pre-amp module used with the petrocount,a very old system we are using.
It's been manufactured by Brooks Instrument around 1970's and I couldn't find any data sheet or whatever for this. The chip numbers could no longer be read. If anyone could provide me, it would be of great help. Or, any suggestions?
It's been manufactured by Brooks Instrument around 1970's and I couldn't find any data sheet or whatever for this. The chip numbers could no longer be read. If anyone could provide me, it would be of great help. Or, any suggestions?