ADCOM GFA555 II Audio Amplifier Repair And Test

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In this video Erik goes through the troubleshooting and testing needed to repair this ADCOM GFA-555 II audio amplifier that has a DC offset voltage and bias problem. A look at the schematic and component replacements are discussed. How to measure and set the bias and discussion on using an oscilloscope to verify the amps performance are shown too. • #audioamplifier #electronicsrepair #adcom

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