CA's Stage Center Reverb ... chassis ground?

[petemoore]

 
  http://www.generalguitargadgets.com/diagrams/stage_center_reverb_lo1.gif
    http://www.generalguitargadgets.com/diagrams/stage_center_reverb_sc.gif
   

[petemoore]

  My Tank looks to be type C, as indicated by the 'input isolated / output grounded" choice at the Accutronics Reverb tank identification page.
  Because the input is isolated, I wonder where I should connect the outside lug of the Tanks input RCA jack [circuit ground?].

[petemoore]

   Basically I'm trying to determine if this circuit would be applicable to the reverb tank I have...which I believe is Accutronics type C./
  I saw an OA driver for a type "B" accutronics.
  I suppose I should assume that CA and JD wouldn't put it up without stating details about 'contingencies' if there were any 'contingincies'?
  It just seems like some accomodation for an input that is grounded would need accounting for [compared to one that is not grounded]...plus that leaves the transducers ;other' lead 'without'/or with a '?' connection.