Mesa Transatlantic

[drewl]

Yikes, looks like a tweed chassis on acid.

Why they call it transatlantic?
Because it looks like it was built in an overseas sweat shop?

Same old Mesa problems it looks like.

I'll check and see if the links to schems are still good, but it shouldn't be too hard to figure out.

Just a pain to get to the boards.

[drewl]

Dang, can't find a schem.
Anyone have one or know where they are?

Thanks.

[drewl]

Nobody work on any of these yet?

Anyway, got it figured out.
Ch2 was cutting out, also had a dead EL84.

Was going to lower the typically hot bias but the resistors are buried.
In 40w mode it runs around 400v on the plates fixed bias.
30w mode lowers high voltage and 15w is cathode bias.

You can switch power modes for each channel.