门铃电路图-Birdie Doorbell Ringer，电路图,消费类电子电路图,门铃电路图-Birdie Doorbell Ringer 门铃电路图，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 ki...
2023-09-18 22:28:00电路图电路图 消费类 门铃
