Replaces: Astatic 51-1, 51-2, 51-3, Sonotone W7590-1, 1P, 3P, 6430, 7520, 7590-1, 7590-2 Replaces original Astatic P-51-1 cartridges found in following jukeboxes: AMI ROWE: A, B, C, D, E SERIES. ROCKOLA: 1428, 1429, 1430, 1431 THRU 1465. SEEBURG: 1940 AND EARLIER, 1946 THRU 1948 Cartridge Specifications: Element Type: Ceramic Output Voltage: 0.7 volts Tracking Pressure: 8 grams Frequency Range: 30-10K Tip: 2 MIL Sapphire Speeds: 16, 33, 45 & 78 RPM Astatic 51-2, AC-C, CAC-W, GC Astatic 51-2, AC-C-AG, AC-C-78, CAC-AGW, CAC-78, GC-AG Astatic 51-3