Harris Platinum HT EL 2000LS, Technical Manual

Page: 78 / 90

A.4
Parts Replacement Procedures
A.4.1
Soldering Precautions
Please read the following precautions before attempting any
repair activity:
a. Be sure to use the correct type of solder depending on the
repair being made. For soldering coaxial cables, use a SN
96, AG 4 alloy for lowest loss and best mechanical
strength. For all other joints, use SN 63, PB 37 for its low
melting point.
b. Always use electrical solder with a rosin flux. Never use
plumbing solder or acid fluxes, which can cause copper to
corrode. Start with clean, tinned leads, which will mini-
mize the need for flux. If it is necessary to use additional
flux, use as little as possible.
Figure A-6. Quarter Module RF FET Bias Pots
Platinum™ Series
A-12 888-2457-001
WARNING: Disconnect primary power prior to servcing.