Onkyo 150F (c. 1981)
Not much is documented about the Onkyo 150F. The archive has no production years, original price or official specification sheet. All it has is a single period review. Audio (August 1981, p.45) covered it as the Onkyo CP-1 150F and described a fully automatic turntable with features that set it apart from run-of-the-mill designs.
The review picked out a Repeat function that could play a record continuously from any selected point to the disc's end. It also found an unusual Search button that drove the arm motor in either direction across the record. The headshell was low-mass with a locking screw, and the reviewer mounted an Osawa MP-30 MM cartridge on it. The standout visually was a transparent platter mat made of amorphous plastic. The reviewer credited it with reducing shock pulses well enough that acoustic feedback was unlikely to be a problem (Audio, August 1981, p.46).
Measured performance was respectable for the era: wow and flutter of 0.04% (DIN 45-507) and rumble of -62.5 dB (ARRL weighting). Vertical and lateral arm bearing friction were both insignificant. The only quibble was ergonomic - the Search control moved the arm while pressed and stopped it only on release, which took some getting used to.
- Fully automatic turntable
- Repeat and motorized Search functions
- Low-mass headshell with locking screw
- Transparent amorphous-plastic platter mat
- Wow & flutter: 0.04% (DIN 45-507)
- Rumble: −62.5 dB (ARRL weighting)
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