Tremolo mod on 1960s Ampeg Rocket 2 amp

[judge734]

OK, I have a 1960s Ampeg Rocket 2 that I picked up really cheap. it is all original and everything on it works and sounds great. The tremolo on it works but I would like to rewire it to be more like an earlier ampeg r-12-r reverborocket. I used to have one, and I love the sound of the bias tremolo.

The tremolo that is stock on the rocket 2 that I picked up sounds ok but there is a volume drop whenever you have the intensity control turned up even if the tremolo is off. I think that is just part of the design, by putting the intensity pot inline between the stages. Anyway, I found a copy of the schematic online and marked it up with the changes I am thinking of making, this should work right? I am not missing anything am I?

[judge734]

Here is the original non drawn on schematic BTW.

[loudthud]

Looks like it would basically work. Did the Rocket 2 use some kind of opto? I can't see where the light source is driven.