Hi All,
I have a BK Precision 1803D Frequency Counter which has 2 inputs, HF (10Hz to 20MHz) and VHF (10MHz to 200MHz) .
It looks like the prescaler for the VHF band which is a chip marked as UPB-467 has failed with no output.....for the life of me, I can't seem to get any info on this chip on the web.

Does anyone have more info on this chip? Or is there anyway to determine what the prescaling factor could be as then I could find another chip to do the same?