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9V Siren

Documentation in acrobat format (K31)

cps31.jpg
A surprisingly loud siren for such a simple circuit. Uses voltage controlled oscillator. 0.5 Watt, 8 ohm speaker supplied. 9V operation. Ideal to attach to an alarm system which needs an sound module.(CPS31)
 
Quantity
Price
1 – 9$9.12
10 – 99$8.64
100 +$7.92

  (Kit - Basic Soldering Required)  
  CPS31  
  5  
 
 
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Mini-Vox and Relay kit
 
The idea behind a VOX (voice activated switch) is that instead of the user pressing a switch to activate a relay, the sound of the users voice itself activates the relay. This gives hands-free control over devices like tape recorders. Power supply needed: 12VDC center positive 2.5mm jack. Electret microphone to pick up the sound is included. PCB size: 44mm x 48mm (1.73inch x 1.89inch).
(CPS126)
Quantity
Price
1 – 9$12.54
10 – 99$11.88
100 +$10.89

  (Kit - Basic Soldering Required)  
  CPS126  
  3  
 
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Siren Sound Generator COB
 
Siren sound generator PCB size: 18mm x 15mm. COB contains a standard siren driver as found in piezo horns and toys. Drive circuit will tolerate a wide range of components values. 2V to 5V operation. It has automatic power down & a standby current of < 2uA. (CPSSG11)
Quantity
Price
1 – 9$0.99
10 – 99$0.85
100 – 999$0.75
1000 +$0.59

  (Component or Part)  
  CPSSG11  
  1059  
 
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