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PCB assembly for crane sound amplifier
The crane sound amplifier consists of an anti-squeaking microphone, preamplifier, alarm signal generator, audio power amplifier, speaker and power supply.
The voltage is rectified and filtered after being stepped down by the transformer. The positive and negative power supplies drive the power amplifier circuit and the strobe light. The sound signal is amplified by the microphone input and sent to the power amplifier circuit to amplify the horn alarm.
The main function of the crane sound amplifier:
1. Alarm 2. Calling 3. Volume is continuously adjustable
Main feature:
A variety of alarm tones are available. Volume is continuously adjustable. Calling with alarm delay (optional) Acoustic and optical synchronization alarm (optional) Multiple combinations of configurations, flexible system application
Novel appearance structure, easy to operate and use
The main technical parameters:
Working voltage: (optional) AC220V AC24V-380V DC24V-48V
Power frequency: 50HZ-60HZ
Output power: 10W/25W/50W Speaker impedance: 8Ω-16Ω
Sound pole: 110-120dB (±5dB)
Tone selection: three tone selection (police car, ambulance, fire alarm), if there is special need, according to the sound content provided by the user, it can be processed into a language or special sound effect alarm.
Usage method: continuous use
Delay function: 5-20 seconds continuously adjustable (optional)
More information contact with: pcba19@fastpcba.cn
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