About Filament Supply Leads - Mercury HOLLY TERROR Assembly Manual

About the Filament Supply Leads
The PT with the Holy Terror Mercury Upgrade
Kit has two yellow leads (wires) coming from the
secondary side of the transformer's casing. See the power transformer's diagram at the front of this manual
for clarification. The two yellow secondary leads are the "filament supply leads." The filament supply leads
are the only wires that must be twisted together – a technique that helps to cut down RF.
This photograph shows a twisting pattern that you should aim for. Consistent, even twisting is important.
Ideally about 10 twists per inch. Cable tie these leads as high off the Main PCB as possible, and as close as
possible to both the power transformer. This will minimize amp noise and hum.
54 Orange "Tiny Terror" • Mercury "Holy Terror" Upgrade Kit
This project and its documentation is the result of technical investigations made by the engineering staff of Mercury
Magnetics. The disclosure of the information herein may pertain to proprietary rights and
the furnishing of these documents does not constitute an expresed or implied license to use such materials.