Audar Inc. PR-6
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MODEL PR - 6
MODEL PR - 6
1. F. ALIGNMENT:
The following adjustments have been made at the factory and should not be changed unless necessary,
and then only by an authorized service man.
Set the signal generator to 455 kilocycles.
Connect an output meter so that the output can be determined.
Connect the high side of the signal generator output to the antenna lead of the tuner. The ground side of the signal generator output is connected to the common electrical ground through a 0.01 mfd. condenser.
Turn the volume control on full and turn the dial drive shaft so that the slugs of the tuner unit are all the way out (high frequency end).
Adjust the two 1.7. trimmers, tuning each carefully to get the maximum deflection of the output meter.
Repeat both adjustments since the adjustment of each 1.F. trimmer may effect the other to a certain extent.
OSCILLATOR AND R.F. ALIGNMENT:
Connect the high side of the signal generator output to the insulation covering the antenna wire and not the wire itself.
Stretch antenna out to its full length.
Set the signal generator to 1650 kilocycles. Make sure that the slugs of the tuner are all the way out against the stop. Adjust the oscillator and antenna trimmers for maximum reading on the output meter.
Set the signal generator to 540 kilocycles. Turn the dial drive shaft until the slugs of the tuner are all the way in. Adjust the tracking core (screwdriver adjus ted slug) to give maximum reading on the output meter.
Readjust as in steps 3 and 4.
Set signal generator to 1400 kilocycles. Turn the dial drive shaft until the 1400 kilocycle note is heard. Adjust the antenna core (core nearest the trimmers), by turning in or out with fingers, to give maximum reading on the output meter.