Anti-theft alarm circuit 2 with warning wires
Source: InternetPublisher:清宁时光 Keywords: Anti-theft alarm circuit single junction transistor switch oscillator Updated: 2020/07/10
It uses a single-junction transistor relaxation oscillator to control the thyristor V (as a non-contact switch )
to achieve alarm.
- Audio level LED and digital dual display circuit
- USB powered portable light
- Corridor automatic light-off device
- Simple electronic doorbell circuit
- Lighting sound-activated switch circuit using thyristors Part 3
- Colorimeter circuit
- Digital display multi-function thermometer circuit
- Three-way music lantern circuit
- Night target display circuit diagram
- Simple sensor alarm
- Contact switch or proximity sensor circuit
- Power phase failure display circuit
- Laptop photoelectric detection circuit
- Music box voice circuit
- Instantaneous water heater automatic constant temperature experimental circuit diagram
- Using 74LS244 to expand 24-channel input interface circuit
- 8-way switching input interface circuit
- High voltage pulse warning grid
- Single-junction transistor trigger circuit 2 that is not affected by power grid fluctuations
- Circuit diagram of separately excited switching stabilized power supply using single-junction transistor as pulse generator