DR #30 - Adcom GFA-5200 Repair
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Troubleshoot And Repair This ADCOM GFA-555se Audio Amplifier
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DR #31 - Audio Amplifier Repair - Parasound HCA-500
18:03
Adcom GFA-555 sent from New York State for a "Check Out" One channel distorted. Bias issue?
12:41
DR #45 - NAD 1155 Audio Preamplifier Repair, Service, and Testing
30:28
An Adcom GFA-5300 sent from New York State for a "Check Out" DC Offset and Bias Adjustments
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Cheap Amp Cheap Fix! Skytronic PA2100 Amplifier Repair
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DR #34 - Carver TFM-45 Repair - Part 2
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