Grounding pin 2 & 7 of an ef86 - is feasible this way ?

[kagliostro]

A friend has draw an 8 - 9 pin version of the 7 Cylinder amp (with some mod)



The layout is not yet complete but connecting to ground the pin 2 & 7 of the ef86 tube it was handy to use the shield of the cable of the input signal

is it feasible ?



Thanks

K

p.s.: Here the .vsd file

http://www.mediafire.com/view/blsfad43y1jj2jt/9_Cylinder_Layout.vsd

[tubeswell]

The EF86 shield can ground at any point in the ground. No current flows through the shield that would affect the ground return.

[DummyLoad]

yes. have seen,that done on an ampex preamp that uses ef86 first stage.

--pete

[kagliostro]

Molte grazie Tubeswell & Pete

Franco