Showing posts with label LM391. Show all posts
Showing posts with label LM391. Show all posts

Sunday, March 31, 2013

Guitar amplifier circuit with LM391

This is a medium power guitar amplifier is recommended especially for portable amplifier. The amplifier is a combination between a simple integrated audio driver, LM391-80 and a stage of output power designed contratemps with bipolar transistors.
Thermistor NTC, which is in temperature contact with output power transistors, allows to separate AO LM391 power stage when it heats too much.
Read the rest of this guitar amplifier circuit…
guitar-amp