Page 45 - Triwatt Custom Lead Amp Builder's Guide

3 4 3 4 3 4 3 4

Brilliant 1M Link Normal 1M

Link 1 2 1 2 1 2

1 2

Bottom view of a Cliff Jack
showing the hidden
connections, underneath To 68K input
with dotted lines resistors at V1

On the input jack end, connect the shields to the ground point on the jacks, which in turn go
directly to the pre-amp ground. Do not connect the shields at both ends of the cable or you will
induce hum.

Measure enough shielded cable to reach from the input jacks to the terminal strip, routing the
cable around the end of the turret board. Prepare the shielded cable for connection and put some
heat shrink over the end to ensure there is no chance the shield will connect to ground or touch
the tube pins. Solder the shielded cable centre conductor to each 68K resistor on each tag.

Input to V1
If you haven’t already, install 2 3-lug terminal strips at
the base of V1 closest to the board. Use the tube
socket mounting bolt to hold the strip in place.

Connect the two 68K input resistors from two of the 4 5 6 68K
tags to the input (pin 7 and pin 2) of V1. Make the end 3 2 7
that connects to the input pin 7 as short as possible. 1 8
68K 9

TrinityAmps TRIWATT Builders Guide Ver. 2.31.docx- 45 -