FINAL AMPLIFIER NEUTRALIZATION
Important Note : For this alignm ent , use a NON
M ETALLIC tuning wand.
1 .
Set the BAND swit ch to
1
O C , set the tuning
dial to 29 MHz, an d tune into a dummy load
for approxim ately 70% full output power.
2 .
Set the M ETER swit ch t o IC , and observe the
dip in the cathode current . The dip should
occur at the same point that m aximum power
output (measured on the dummy load watt
meter) o ccurs . If this is not the case , adjust
TC 1 , located insid e the final amplifier cage ,
for the required coinciden ce of m aximum
power output and dip on the IC meter.
CAUTION : H IGH VOLTAGES ARE PRE SENT
O N THE UNDE RSIDE OF TH E
CHASSIS AND INSIDE THE FINAL
AMPLIFIER COMPARTM ENT. U SE
GREAT CARE WHILE MAKING
ADJUSTMENTS IN AREAS OF EX
POSED WI RING .
Final Amplifier Compa r t ment
Note : The final amplifier enclosure must be in
place to provide the required RF shielding
during the neutralization pro cedure .
RECT A UNIT( PB- I 967)
- 4 2 -
8V
1 2V
300V
1 90V
1 20V
ov
AC320V