GP204, GP205, and GP213 Ceramic Cartridges
The GP204, GP205, and GP213 were ceramic cartridges manufactured by the Philips Corporation and marketed in 1972. The GP204 had 18-µm sapphire stylus, whilst the GP205 had 18-µm diamond stylus. Both of these cartridges can be fitted with either 251 20001 or 251 20002 turnover assemblies. The GP213 usually came with a dual turnover type stylus 4822 251 20011. Full specifications are shown above.