HF PackerAmp V4, Construction Manual

Page: 15 / 76

•
Use a ¼ inch drill bit as a winding form and wrap 10
complete turns of the wire tightly around the drill bit.
•
Trim the excess lead length to ½ inch and tin the leads.
•
Insert L1 and L3 into the L1 and L3 positions on the
circuit board. Install

•
Use the end of a ball point pen to push into the end of
the air coils slightly to reform the wires should they
become deformed during soldering.
Fabrication and Assembly of L2

Note: If you purchased the PINET 100-PI Module with
your Amp, it is not necessary to install L2. Leave the holes
clear. Instead, refer to the page for the PINET 100-PI Module
option.
•
L2 require 4 inches of the #24AWG remaining wire.
•
Use a 3/16 inch drill bit as a winding form and wrap 4
complete turns of the wire tightly around the drill bit.
•
Trim the excess lead length to ½ inch and tin the leads.
•
Insert L2 into the L2 position on the circuit board. Install

•
Use the end of a ball point pen to push into the end of
the air coils slightly to reform the wires should they
become deformed during soldering.
Assembly of RFM2
•
Insert the RFM-2 Module in the U6 location.
•
The square pad (pin 1) on PCB aligns with the square
pad on the RFM-2 Module. (see bottom right in pix
below)
RFM-2 just below U2 above
•
T1 is fabricated using a Binocular core with a primary
and secondary winding.
•
The primary is a 7 inch yellow #20AWG Teflon coated
wire. There will be 2 loops through the cores.