HF PackerAmp V4, Construction Manual

Page: 16 / 76

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The secondary is a 10 inch white #20 AWG Teflon
coated wire. There will be 3 loops through the cores.
•
Make a U shape of the 7 inch yellow wire and insert
into the two tubes. Equal distance the wires.
•
Make a U shape of the 10 inch white wire and insert
into the same end of the two tubes. Equal distance the
wires. At this point, you have 2 yellow and two white
wires coming out the same end.
•
Push one of the yellow wire leads through the adjacent
tube. Push the other yellow wire lead through the other
adjacent tube. Pull the leads tight. You are finished
with the yellow wire.
•
Push the white wires through in the same manner. Pull
the wires tight. Push the white wires through a final
time through the adjacent tubes. You now have the
yellow wire leads on one end and the white wire leads
on the other.
•
You are done winding the core.
•
Trim about 3/8 inch length off each lead. Strip each
wire about 3/8 inch and lightly tin the tip. You are now
ready to install the transformer into the board. The
yellow primary (input) and white secondary (output).
•
Insert the primary wires at holes 1 and 2. Pin 1 is the
square pad.
•
Insert the secondary into holes 3 and 4
•
Pull leads snug and solder. Install

T1 with Yellow Primary, White Secondary
Clean and Inspect the Board
•
Remove the flux from the circuit board with a flux
removal spray in a ventilated space.
•
Inspect the solder joints for the entire board
This completes assembly of this module. The MOSFETs will
be installed in a later assembly.