Ampeg Gemini VI PT

[stokes]

Got an old chassis from this Ampeg.It has the PT and OT intact and not much more.Looking it over I see a white wire coming out of the PT and connecting to a cap to ground.Cant find it on the schem for this amp.Anybody have any idea what this was/is?

[The Dude]

This schematic shows a cap on the CT of the filament winding to ground. Does that white wire have continuity with the filament wires?

http://elektrotanya.com/PREVIEWS/634...i_vi.pdf_1.png

[g1]

This Ampeg GS-15 schematic shows it also.

[stokes]

Thanks,thats it.The schem I have doesnt show the cap on the fil winding,just a ground connection,its an old schem that looks like a copy of the one that was pasted inside the back cover of the amp.Dont remember where I got it,it is in a pile of schems I've had for years.But that raises another question,what is the point of this cap versus a solid ground connection?