Palomar Electronics Corp. Model 90A front panel controls

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PRE-AMP
In ON position will add approximately 10db of gain to received signals.

MODE
Select either mode depending on your transmitter's emission AM or SSB. For FM or CW operation use AM position.

FUNCTION
In STBY position the amplifier is bypassed, and the exciter transmits direct to the antenna. In OPERATE position the RF amplifier is activated.

OUTPUT
This features allows reduced power operation. In LOW position the amplifier produces approximately 1/2 of the available output power. NOTE: The amplifier must be retuned when switching from low to hi or vice versa. It is extremely important to re-peak both tune and load controls with changes in drive level.

POWER
Turns the main supply voltage on.

BAND
Select the desired frequency making sure the exciter is switched to the same frequency. The amplifier will require retuning after it has been changed.

TUNE
Adjusts the tank to tube circuit resonance.

LOAD
Resonates the P1-Network portion of the tank circuit to the antenna.

METER
Indicates relative output. The amplifier is tuned for maximum meter reading.


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