DC shifting in Levin Amp Schematic

[Vivek]

DC shifting in Levin Amp Schematic

Schematic taken from here : https://www.aronnelson.com/gallery/main.php/v/slackers-stuff/album170/levinamp.jpg.html?g2_imageViewsIndex=1






Overall output. Signal started at t = 1 sec, to give all caps time to settle after circuit start




Output signal at start of signal, t=1s


Output signal 2 seconds after start

[Vivek]

Related post : https://www.diystompboxes.com/smfforum/index.php?topic=125712.0

[teemuk]

I don't trust that schematic to be correct. If I remember right Levin amps were Crate clones. Those diodes should be Zeners like in Crate amps.