Marshall 2203 reissue issue.

[drewl]

Here's something to watch out for.

Seeing the PC board mounted 100 ohm balance pot for the filaments getting fried on these amps.

Why they added it after 50 years, who knows.
Maybe for the FX loop.

Also all those little sharp legs from the board sticking out underneath poking holes in the various high voltage wires running under the board!

So if you're servicing the board, you might want to trim the legs before they poke through a wire and fry stuff.

[nevetslab]

Here's something to watch out for.

Seeing the PC board mounted 100 ohm balance pot for the filaments getting fried on these amps.

Why they added it after 50 years, who knows.
Maybe for the FX loop.

Also all those little sharp legs from the board sticking out underneath poking holes in the various high voltage wires running under the board!

So if you're servicing the board, you might want to trim the legs before they poke through a wire and fry stuff.

I forget the mfgr on the two pots on the main PCB....Bias and Hum Balance. If those are Phier 14 series, they're only good for 1/4W. The smaller ones are less than 1/4W. Now, granted, there are 100 ohm series resistors from the heater wires before getting to the pots, but still....we're used to seeing 1W rated pots for hum balance pots. I've had to replace these before.