Rev:Nobember 20. 2006
21
lower right to lower left.
That completes 1 turn.
Transfor,er TR 1 must have 4 primary and 1 secondary turns.
Use 20cm of the 0,3 mm wire. Feed the wire
from upper left to upper right. Leave about 3
cm wire at the left side. Now back through
the lower hole. Pay attention not to scrap
the wire to much at the pignoses corners. If
the laquer gets damaged, this could short
the transformer.
Now the second turn: Feed the longer end
again upper left to upper right and back
lower right to lower left - second turn is ready.
Add the remaining two
turns the same way and
the primary is ready.
Now the secondary . The
secondary is made by 1
turn 0.5mm wire. Start
just at the opposite end
of the pignose: Upper
right to upper left and back lower left to lower right.
Thats it.
Tin the 4 ends the same way you did it with the Torroids. Place the ready
made pignose to the PCB, The primary (thin wire) goes to solder point 1
and 2, the secondary (thick wire) goes to solder point 3 and 4
[ ] Tr1 BN43-2402 Double Hole Core
G-4
prim.4 turns 0,3mm enamel wire
sec.1 turn 0,5mm enamel wire.
Install the power regulation Potentiomer P2
[ ] P2 250R PIHER SMC-10-V
E-4
and the TX is ready except the PA.
After you have controlled your work, you can test the TX section withot any
problem because the driver can work against R45 without any problem.
Connect power
connect a key
switch power on
choose KEYER OFF in the Menu
Summary of Contents for Blue Cool Radio
Page 24: ...Rev November 20 2006 24 ...
Page 27: ...Rev Nobember 20 2006 27 DDS Unit ...
Page 28: ...Rev November 20 2006 28 BCR Mainboard Part side complete ...
Page 29: ...Rev Nobember 20 2006 29 BCR mainboard Solderside SMT Parts ...
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Page 32: ...Rev November 20 2006 32 ...
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