Question about Marshall Mg15dfx 15-Watt Combo Guitar Amplifier
The 30 Watt version uses MJ3001 (NPN) and a MJ2501 (PNP) in a standard emitter follwer arrangement. TR4 looks like a BC184 but drawing is not too clear and this transistor is CRITICAL as it sets the bias for the two output transistors, and if it fails, the outputs will fry.
Here is typical schematic:
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Posted on Mar 19, 2011
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Posted on Jan 02, 2017
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