Phonograph Diamond needle stylus Radio Shack RS-100, cross-reference Pfanstiehl 464-DS77. Replaces: Euphonics 509 510 512 513. Used in: Euphonics U14, U15, U16, U17, U18, U19 Series. "Miniconic". Used in Astatic 732, 735, 737, 738, 739, 741. Tips: .7 mil diamond and .7 mil synthetic sapphire. Speeds: 33 and 45 RPM. Needle color may be black or white.
Used in Motorola models: SD523, SD654, SD655, SD656, SD657, SD661, SD662, SD663, SD664, SK540, SK550, SK551, SK552, SK553, SK554, SK555, SK556, SK557, SK558, SL650, SK652. New old stock.
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