标题: 门铃电路图-Birdie Doorbell Ringer [打印本页] 作者: liyf 时间: 2011-6-5 07:22 标题: 门铃电路图-Birdie Doorbell Ringer 门铃电路图-Birdie Doorbell Ringer:Notes1 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.
1 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.