3.
Set the FUNC TION switch at STANDBY, and, af ter one or two minutes of war m-up,
reset the FUNC TION switch at PTT. Depress the microphone PTT button, and adjust the rear apron
BIAS control for a meter reading of 50mA.
4.
Release the mic rophone PTT button.
It
will not be used again in this procedure
5.
Set the MODE switch at TUNE .
CAUTION
Do not allow the unit to remain in the "tune" condition
for mo re than about 20 seconds at a time, to avoid
excessive heating of components in out-of -resonance
conditions.
If
more time is required to make an
adjustment, allow the final to cool by setting the MODE
switch back at CW for about 30 seconds before continuing.
6.
Adjust L9 for a maximu m meter reading, and proceed immediately to step (7).
7.
Adjust the PA TUNE control for a minimum meter reading. The plate current should
fall below 200ma, since the PA LOAD control is already at its maximu m ccw position.
8.
Adjust coil L l 2 for a peak meter reading.
9.
The neutraliz ing capacitor, C 107 must be adjusted so that maximu m output power is
obtained at minimum plate current (dip). Slowly rotate the PA TUNE control and simultaneously note
the relative output power and the plate current.
If
maximu m output does not occur at plate current
dip, make a slight readjustment of the neutraliz ing capacitor and repeat the above test. After proper
neutralization is achieved, repeat steps (6) , (7), and (8) above.
10.
Set FUNC TION switch at STANDBY, and then set the BAND switch at 40 meters, and
the MAIN TUNING control at 7. 15Mc.
11.
Re-set the FUNC TION switch at PTT, and adjust L8 for a maximum meter reading.
12.
Adjust the PA TUNE control for plate current dip.
13.
Adjust L
ll
for maximum meter reading.
14.
Set the FUNC TION switch at STANDBY. Then set the BAND switch at 80 meters, and
the MAIN TUNING control at 3. 80 Mc.
15.
Re-set the FUNC TION switch at PTT, and then adjust L7 for a maximu m meter reading.
16.
Adjust the PA TUNE control for a plate current dip.
17.
Adjust L lO for maximu m meter reading.
This completes the transmitter alignment.
CRYSTAL FILTER
NOTE: The crystal filter in this transceiver has been pre-adjusted and aligned at the factory.
At most, only one slight adjustment will be necessary,
if
at all. The following procedure
should be employed only
if
the sound of received SSB signals appears to be unnatural or
distorted.
16
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