The Sony TC-6100 is a tape deck characterized by its compact design and advanced technological features. It utilizes a narrow gap 2 micron head, which offers excellent wear resistance and high frequency capabilities. This model includes a tape selector for compatibility with SLH tapes and employs low-noise silicon transistors within its amplifier section. Noteworthy is its electron spectroscopy for chemical analysis rate drive, designed for one-touch tape applications, as well as an anti-vibration roller and motor, which work together to minimize noise and enhance sound quality. The TC-6100 operates at multiple tape speeds: 19 cm/s, 9.5 cm/s, and 4.8 cm/s, maintaining a wow flutter rate of 0.12% WRMS at the highest speed. Its frequency response varies based on the tape type; with SLH tape, it achieves 30 Hz to 23 kHz, and with general tape, 30 Hz to 18 kHz. The overall strain rate is limited to 2%, with a signal-to-noise ratio of 55 dB when using SLH tapes and 52 dB with general tapes. The device measures 386 mm in width, 340 mm in height, and 190 mm in depth, weighing in at 8 kg. Originally priced at ¥32,800 around 1971, it reflects the engineering prowess of Sony during that era.