门铃电路图-Birdie Doorbell Ringer
来源：电子发烧友 作者：华强电子网 时间：2019-01-23 13:06
门铃电路图-Birdie Doorbell Ringer:Notes:P1 is of experimental value. Start with 220ohms or so and modify to suit your needs。The transistor is a general purpose kind and is not criTIcal;almost any pnp type will work.
上一篇：可视门铃电路图
相关文章
