Ic1237 Speaker Protection Board 30a Ac12v-18v For Class A Ampfinished Board

US $15.00

  • Wuhan, China
  • Mar 10th
1 Pair Of JLH 1969 A CLASS A amplifier kit two channels    Specification:  Dimensions: 96mm x 65mm. Power supply: 12V-18V AC. Withstand current: 30A maximum. Core IC: IC 1237 Manifold dedicated speaker protection Feature: 1. The default setting amplifier output DC is more than about 0.5V.If you want to set the DC voltage smaller, you could change the two 30K resistors with smaller resistance, such as 10K. 2. when the relay is closed, the two green LED is illuminated. If the amplifier output DC is too large, the green light will not light. 3. relay closure duration is controlled by the capacitance on the board 47U.If you replace it with 100U,closing time will become longer.But if you replace it with 22U, closing time will be shorter.47U capacitors is default in our store. Note:  font size="2" face="arial" color="black"> Color or brand elements will be different at different batches, but the quality will be the same.Kindly please understand us. If you mind it,please don't order it.Thanks. Package:  1 x IC1237 Speaker Protection Board 30A AC12V-18V for Class A Amplifier Finished Board                                                                                Payment Method:  PalPay preferred Shipping Handling: Country Approximate delivery time United States / United Kingdom / Australia 10-15 business days Canada 12-18 business days Brazil / South America 20-25 business days Italy / France / Spain / Germany/ Eastern Europe 15-20 business days Terms of Sale: Payment Accepting PayPal payments. Please pay within 7 days from first purchase. Shipping We ship to international via China Post Airmail or Hong Kong Post Airmail, and every parcel will be registered with tracking number. We can also ship by UPS/EMS for corresponding fees. Please email your postal code for shipping quote. International customers may experience delays by customs or national post providers. Review your duty-free limits. Please let us know before payment if you need split shipment. Emails Customer inquiries and messages will be responded within 24 hours. We will try our best to have your satisfaction. Friendly Tips > 1mw laser pointers may be confiscated by UK, AU customs. Over 5mw laser pointers are banned in some countries, please read your laws before place the order. We are not responsible for the customs hold or law violation. Returns Customer should make initial contact in 7 days from receiving the order. Products must be returned in original condition.   Good Luck & Have a nice shopping experience! Keep in touch! Powered by eBay Turbo Lister The free listing tool. List your items fast and easy and manage your active items.

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