Sega Jet Rocket 2SC458 Transistors

Maxxarcade

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Has anyone ever rebuilt a Sega EM oscillator (sound) board that uses the old 2SC458 transistors? I've replaced them with modern transistors when fixing old audio equipment, but I wasn't sure if an oscillator circuit would be more picky or not.

I also recall reading somewhere about the voltage to the amplifier being a bit too high in these games, but I can't remember where I saw that info.
 
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