NAMM 2014: Black Widow might have come up with the ultimate solution for those of us looking for a variety of tube sounds, but not sold on digital modelling. The MGP-1A is a 3U rack-mounted unit that ...

Here is the circuit diagram of a guitar preamplifier that would accept any standard guitar pickup. It is also versatile in that it has two signal outputs. Here is the circuit diagram of a guitar ...

The circuit was designed to create a line preamplifier by acquiring the use of double triode tubes. The circuit comprises of three parts, the main preamplifier circuit with tubes, the input selector ...