HF PackerAmp V4, Construction Manual

Page: 18 / 76

Core Winding Table
REF TYPE T IN.
Wire
IND. Clock
L1, L2 T68-1
(BLU) 20 19 22 5.08 uH 7-5
L3,L4 T50-2
(RED) 22 17 24 2.65 uH 7-5
L5 T44-2
(RED) 15 13 24 1.37 uH 7-5
L6 T44-2
(RED) 13 12 24 1.17 uH 7-5
L7 T37-6
(YEL) 12 9 24 580 nH 7-5
L8 T37-6
(YEL) 11 8 24 470 nH 5-7
L9 T37-6
(YEL) 10 8 24 430 nH 8-3
L10 T37-6
(YEL) 11 8 24 470 nH 7-5
L11 T37-6
(YEL) 10 8 24 430 nH 7-5
L12 T37-6
(YEL) 8 7 24 360 nH 10-2
L13 T37-6
(YEL) 7 7 24 280 nH 11-1
Where: T=turns; IN.=inches; IND= inductance; Wire=AWG

Clock – Clock Face where winding occupy space on the
core between a start time (7pm) and a end time (5pm)
example. Evenly adjust the wire spacing to match the clock
setting.
Core Winding Technique
The starting position: Divide
the wire in half letting the
core hang down. The wire
passing through the core
counts as one turn.
L3 Example:
Wind one side. Start with
the wire in the back and
wrap 10 turns on the right
side.
Use a pair of needle nose
pliers to aid in pulling
the wire tight against the
core as you wrap it around
the core.
Wind the other side. Wrap
10 turns on the other
side.You now have 21 turns
through the core. I
squeeze up the wraps to be
tight. Your inductors must
be wound with the wires on
the sides shown or the
inductor footprint will
not match the circuit board layout.