Fluke Biomedical 942A-200L-M4 - Manual (Page 33)

Theory of Operation
Main Circuit Board
2
2-19
Figure 2-5. Discriminator Setting
Signal Detection
The circuitry comprised of flip-flop U93 and inverters U11 and U94 utilize the low discriminator and high
discriminator outputs to ensure that only input signals which peak between the discriminators are made
available to the gross counters.