pre amp output Delay board
$6.00
pre amp output Delay board
Pre-amp output delay board, delay time can be adjustice from 5 sec to 2 minute
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Power Soft start after power on the relay is switch on and a resistor is connected in serial bewteen the main and the loading, after 5 to 8 seconds and return to normal connection. board size: L 105mm X W 57mm (have 115V or 220V version)
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Loudspeaker protect circuit Loudspeaker protect circuit using advance Protect IC NEC upc1237HA, including turn on/shut down power delay, over current protect, over loading protect and short circuit protect, two channel design can be use with MOSFET and Bipolar transistor
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Loudspeaker delay not a Loudspeaker protect circuit only delay the output for a few seconds to protect the Loudspeaker when you power on the Amplify
