I'm still a rookie with transistors and have never seen this done before so I'd like to know if this is okay to do or bad practice. The logical 1 switch represents a micro controller and the JK flip flop represents a sound module. The sound module is activated only when pin "J" is shorted to ground. I found this in a schematic for this module I'm currently using. Even though it works, I would like to know if this is the proper. If so, shouldn't there at least be a pull up resistor between the collector and pin "J"?
