Worth dumping another $100 into a Sony TC-666D?

Sony TC-106A - Mono Reel-To-Reel Tape Machine - Restored Analog to digital transfer of 1970s mono home recording of Roger Whittaker. 24bit/48kHz file edited in Adobe Audition CS6. Machine was disassembled

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Sony TC-666D Stereo Tape Recorder Manual

File:Sony Three Head Stereo Tapecorder - Model TC-366 Solid State - with tape reel.jpg - Wikimedia Commons

Sony TC-666D Tape Recorder

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SONY TC-666D - Maison Robert