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November 27, 2021, 12:20:03 AM

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Author Topic: Marshall Mosfet 3210, 5213,5215 Power Amp PCB  (Read 139 times)

Tassieviking

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Marshall Mosfet 3210, 5213,5215 Power Amp PCB
« on: November 05, 2021, 12:52:57 PM »
G'day
I made up a PCB for the Marshall Mosfet 3310, 5213, 5215 amplifier, I used KiCad to make it but I have no idea if the transistors I substituted will work right.
The Mosfets in the circuit might not be available any more neither, but you can just run wires to whatever you want to use after they are mounted on a heatsink
The original Mosfets were TO-3 type connected with wires running back to the PCB.
I have no idea what the choke or inductor value should be, or the resistor it is wound around, I asked the Marshall tech support and they had no clue either.
The footprint for the choke and the resistor  it is wound around are on top of each other.
Will it work ?  I guess I will find out when I build one, I have 5 PCB's on the way from JLCPCB
I am a complete beginner when it comes to making up PCB's so anything can happen. I have built amps and stuff a long time ago,and then I became a sparky for 40 years.
Anyhow, here are some  pics and files.
Cheers....Mick