The tone control circuit made by the integrated circuit is expensive and troublesome to make; the attenuation tone control circuit is simple to make but has a bad sense of hearing, and also has a large signal attenuation. Here, the cheap and easy-to-buy BA328 is used to make a tone control circuit. The actual audition effect is better. Now I will introduce it to everyone. The circuit principle is as follows:
BA328 is a high-quality dual op amp powered by a single power supply (see the attached table for performance parameters). The tone control circuit produced by it has the characteristics of few components, good sound quality, wide range of power supply voltage, etc. The circuit layout is carefully designed and high-quality electronic components are selected. As long as the assembly and welding are correct, no commissioning is required.
If there is no BA328, you can also use LA4160 / LA3161 with the same package and pin function, and the effect is basically the same.
| About Plastic Spool |
For package of enameled copper and Aluminium Wire ,we also product plastic spool.White ,black, blue, and can be producted by requirements of clients.most of products' material are ABS.
PT 25/ PT 60/ PT 90/ PT 200 and DIN 250 and etc.
Product Process:
Material Ready-Production-demolding-deburring-Quality test-packing-shipping.It depends on the parts we made. Besides, we will maintain or replace the mould by ourselves.Hot processing molding, injection molding, extrusion is process of Plastic spool or bobbin.
Plastic Spool
Plastic Spool,Plastic Small Empty Wire Bobbin,High Quality Plastic Bobbin,Small Empty Wire Bobbin
HENAN HUAYANG ELECTRICAL TECHNOLOGY GROUP CO.,LTD , https://www.huaonwire.com