AMPEG ET-1B Restoration

[Gingertube]

Just completed a restoration of a 1968 Ampeg ET1-B
Schematics around the web were unreadable resolution so did a circuit trace myself.

For you possible interest.

Cheers,
Ian

[The Dude]

Nicely done and kind of you to post.

[Gingertube]

Just reviewing the circuit - I obviously missed a DC blocking cap. I'm fairly sure it went between the junction of the 470K and 510K and the 6SL7 grid (pin4) on Sheet 1.

Cheers,
Ian