Andy recommends favorite resources for basic op amp circuits and includes a portion of TI's AN-20. Test your knowledge with ...

Each power amplifier is biased from a common internal regulator to provide high power supply rejection, and output Q point centering. The LM1877 is internally compensated for all gains greater than 10 ...

This year we have the evocatively titled Hi Power, and it looks pretty sweet, too. The Hi Power is pedal that is explicitly based on the Coloursound Power Boost and a 1970s Hiwatt tube amp, and ...