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Stereo Speaker Protection board with Turn on Delay - PCB only

119.00 149.00
  • High Current - 10 ampere Max output current capable relay ( standard sugar cube relay )
  • Dual Channel - Both Channel Speakers of Stereo amplifier can be protected with one board.
  • Turn on Delay - Delay of 1 - 2 Seconds so the speakers can be protected from harmful on / off Transients.
  • DC Detection - as low as ±2 volt DC can trigger the relay and protect the speakers.
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Stereo Speaker Protection board with Turn on Delay

349.00 399.00

High Current - 10 ampere Max relay support ( standard sugar cube relay )

Dual Channel - Both Channel Speakers of Stereo amplifier can be protected with one board.

DC Detection - as low as ±2 volt DC can trigger the relay and protect the speakers.

Fault indication - in case of DC at speaker out and Relay will not turn on and connect the amplifier to speakers.

On Board Regulator - Power supply rectifier and voltage regulators in built so this board can work with any supply AC up to 30 Volts Max.

Turn on Delay - Delay of 2- 5 Seconds so the speakers can be protected from on / off Transients.

Standard Components - All components used are available online or at your local electronics store.

No SMD components - Only through hole components used, making soldering and replacement hassle free.  

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Stereo Speaker Protection Kit with On Delay

349.00 399.00
  • High Current - 10 ampere relay Leone Make 
  • Dual Channel - Both Channel Speakers of Stereo amplifier can be protected with one board.
  • DC Detection - as low as ±2 volt DC can trigger the relay and protect the speakers.
  • Fault indication - in case of DC at speaker out and Relay will not turn on.


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6v / 12v LED Auto Cut Emergency Light - PCB only

79.00 99.00

LED Emergency Light with Automatic Battery charging PCB, Perfect for Educational Projects.

Specs - PCB Size - 85 mm x 33 mm ( 3.3 inch x 1.3 inch ), Transformer required - 0 - 12 volts 500 mA , 

Features - Very Simple but Reliable circuit, Easy to assemble, High brightness LEDs work best, Automatic Battery Charging, long Battery life. Totally Maintenance free.

PCBs Made in India, All Components, Circuit Diagram, BOM (List of parts) & Instructions With PCB

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6 Volt LED Auto cut Emergency Light Board

149.00 199.00

6 Volts LED Emergency Light with Automatic Battery charging Board, Perfect for Educational Projects.

TRANSFORMER, BATTERY & LED's NOT INCLUDED.

Specs - PCB Size - 85 mm x 33 mm ( 3.3 inch x 1.3 inch ), Transformer required - 0 - 12 volts 500 - 1000 mA , Battery Supported - 6 volts, Output Current - 500 mA Max,

Features - Very Simple but Reliable circuit, Easy to assemble, High brightness LEDs work best, Automatic Battery Charging, long Battery life. Totally Maintenance free.

PCBs Made in India, All Components, Circuit Diagram, BOM (List of parts) & Instructions in Kit

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12 Volt LED Auto cut Emergency Light Board

149.00 199.00

12 Volts LED Emergency Light with Automatic Battery charging PCB Kit, Perfect for Educational Projects.

 TRANSFORMER, BATTERY & LED's NOT INCLUDED.

Specs - PCB Size - 85 mm x 33 mm ( 3.3 inch x 1.3 inch ), Transformer required - 0 - 15 volts 500 - 1000 mA , Battery Supported - 12 volts, Output Current - 500 mA Max.

Features - Very Simple but Reliable circuit, Easy to assemble, High brightness LEDs work best, Automatic Battery Charging, long Battery life.Totally Maintenance free.

PCBs Made in India, All Components ,Circuit Diagram, BOM (List of parts) & Instructions in Kit

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