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TP238是香港生产的CMOS器件,它可发出四种音响效果的音乐集成电路。通过改变集成块1、2脚的电平(见图),可发出警车、消防车、救护车和机枪的射击声,因此被大量应用在各种电子玩具和报警器上。同样,加装合适的放大器后也可用于警车、消防车和救护车上。TP238有七个脚,上面两脚间接入240~390 kΩ
The TP238 is a CMOS device produced in Hong Kong that delivers four audio ICs. By changing the level of blocks 1 and 2 (see photo), shots of police cars, fire trucks, ambulances and machine guns can be issued and are therefore widely used in various electronic toys and alarms. Similarly, the addition of a suitable amplifier can also be used on police cars, fire engines and ambulances. TP238 has seven feet, access to the above two feet 240 ~ 390 kΩ