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TL103WA: Op-Amp Field Failure

Part Number: TL103WA
Other Parts Discussed in Thread: LM358, TL103W

This part is being used on a siren/microphone product. When microphone is keyed, the PA does not enable. The signal makes it to the Microcontroller but voltages across Op-Amps are zero.

Customer power source is 12 to 14 Volts (vehicle battery).