Marantz 2230B Stereo Receiver. 1974.
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Restoration work completed in 2020. Cleaned. Replaced all capacitors (including filter capacitors) and problematic pre-driver and phono transistors. Has Dolby FM circuit (defunct format from the 70s). Amp balanced. DC offset set. Cleaned all controls. Replaced tuning indicator and stereo lamps. Tuning Circuit aligned.