Alignments
Cobra 148GTL (PC-412)



The PCB in this radio is almost identical to the Grant (PC-409) and the Madison (PC-411) and it can be used for comparisons

Alignment

Reading PointAdjustmentDescriptionValue
OSCILLATOR
TP9L19VCO Coil
TP1AM
TP1USB
TP1LSB
TP1L20AMMaximum
TR20 EmitterL21AMMaximum
TP3CT2Carrier frequency7.800MHz
L48Carrier frequencyMaximum
L47TX Mixer frequencyMaximum
TP10
RECEIVER
L4 L5 L6RF
L7 L8 L9 L101st. IF
L12 L13 L14 L15SSB IF
L3AM IF
L1 L2NB/ANL IF
Internal S-MeterVR1AM
Internal S-meterVR2SSB
TRANSMITTER
TP8VR9Driver Bias10mA
TP7VR8Finale Bias100mA
L46 L45 L44 L38
VR4Modulator Balance
VR10AM Power15 Watt
VR11SSB Power20 watt
Internal Power MeterVR6

If you have more precise information on any of these radio's Email Me !!!

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