Guitar Amplifier Schematics Marshall MG30DFX, Carlsbro Stingray Lead 100 L100?
Please could you direct me to a copy of the circuit schematic for the Marshall MG30 DFX and Carlsbro Stingray Lead 100 [L100] (+ footswitch for both) guitar amplifiers. I am studying audio circuits and I really want to understand the workings of these amplifiers.
Many Thanks
The Marshall MG30 series uses an op-amp for the preamp, a custom digital IC for the effects, and a power Op-Amp to handle the output stage so the schematic doesn’t tell you much beyond the component values for the attenuator circuits. Marshall restricts the schematics to authorized repair centers, the tech at one might be willing to let you take a look.
Carlsbro is much more accommodating. Talk to them on their forum.
Tutorial – wiring a footswitch for a guitar effect do it yourself foot switch
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