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Cobra 19 DX III Repair: Excessive PA feedback | Radioaficion Ham Radio

Cobra 19 DX III Repair: Excessive PA feedback

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Cobra CB Radio MODEL(s): 19 DX III

DESCRIPTION: Excessive feedback when using PA.

ACTION: There is too much microphone gain for the PA function, which makes the radio

excessively prone to acoustic feedback.

To correct, install a 10K ohm resistor from the open contact on the PA switch to the collector of Q12. Put an insulating sleeve over the resistor.

Refer to the pictures

ADJUSTMENTS: None.

NOTES: None.

Cobra 19 DX III Repair: Excessive PA feedbackCobra 19 DX III Repair: Excessive PA feedback

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