This plan is very important for build up point to point wiring inside
of chassis of valve amplifier. even Sony, Mark L, Jeff Rowrand and many amplifiers are
using one point groud on chassis.

it's not only 3 type for idea but almost like these type of wiring .
for reducing hum noise.very very important for build up Amplifier
generally, input RCA ground side grounded on chassis.

last up date 12nd Sep 2011 since 15th april 2007