By Jim Walker, March 31, 2005
Author Jim Walker describes how to use a dual IRF7342 or IRF7341 in a circuit to supply low-voltage reverse-polarity protection
By Jim Walker, June 07, 2004
Author Jim Walker describes a very low cost analog delay line circuit using parts such as the LM311 comparator and 74HC74 D flip-flop
By Jim Walker, September 15, 2003
Typically, microphone pre-amplifiers for consumer electronics are designed in one of two ways. In Figure 1a, the microphone gain is set high to accommodate low-level signals and the output is attenuated as...