$16.2 Buy It Now or Best Offer
free,30-Day Returns
Seller Store audio666
(364) 99.0%,
Location: HZ
Ships to: US,
Item: 395044088038
Restocking Fee:No
Return shipping will be paid by:Buyer
All returns accepted:Returns Accepted
Item must be returned within:30 Days
Refund will be given as:Money back or replacement (buyer’s choice)
Unbranded:Unbranded
Type:Power Amplifier
JLH 1969:JLH 1969
Number of Channels:1
Amplifier Class:A
Country/Region of Manufacture:China
1Pcs JLH 1969 Class A HIFI Amplifier Board MOT/2N3055 Golden Quality PCB DIY KitDescription:Please note before you buy: Products as shown in my main picture, one channel price. so if you need stereo channels, please buy 2pcs. it needs to solder by yourself .thank you! Features: Model:JLH1969 Name: Amplifier Board 1. Double-sided , thick copper PCB. This one is doubled-sided so the copper pad durability is greatly enhanced by plated-through hole ( PTH) process. 2. Hermetically sealed metal casing transistors used on both small signal and power stage. 3. High quality electrolytic capacitors. 4. High quality solder with silver content is used in soldering. 5. ERO film capacitors for audio coupling. 6. Thick and heavy aluminum plates already mounted on the board ( as in the pictures) for easy to interface with heatsink. Specification: 1.Operating voltage: DC 12V-35V (corresponding to 9-26V transformer) 2.Output sound power: approx 10-15W 3.It can be pushed 3-8 inches, 120 watts of power bookshelf box, full-range boxes. Sensitivity to be higher than 83db. 4. Adjustable quiescent current between 0.3-1.8A, recommended 1.2 Ann (radiators need more than 0.7 kg). Adjust the midpoint / quiescent current method: midpoint: 1. Select the universal table’s 10A ;, 2. black pen -GND, red lead -TP1; 3. Adjust the adjustable resistance KT1 (supply voltage 1/2) Current: 1. Select universal table’s 10A, 2. Loosen the screws of VCC supply, pull out the wires, 3. One pen connected to the pull out wire, the other pen connected to the screw of terminals, which is a measure of the current (equivalent to remove the VCC line of 1969 board , replaced with an ammeter), 4. Adjust the adjustable resistor KT2 changing the current NOTE:the 2N3055 is ST or Motorola disassembled in good condition.maybe the capacitor appearance is scratched,but all in good condition and unused. NOTE:if you purchased 2 of this item i will send you a pair of JLH 1969(L+R Channel)if you purchased 1 pic i will send you the L or R channel random. Package includes:1pcs JLH 1969 Class A audio hifi power Amplifier Board High Quality PCB MOT/2N3055 diy kit(not assembled with all component as pic shown)PaymentDelivery detailsTerms of salesReturnContact usPaymentWe accept payment by PayPal only. Payment must be received within 7 days after auctions ended. Delivery detailsItems will be shipped within 1-2 business days when we received payment. Shipping to USA takes about 8-15 days in normal condition,other countries takes about 15-35 days. Please verify your eBay primary shipping address. We are not responsible for any wrong or undeliverable addresses. Terms of salesAll items will be checked before packing Your feedback and 5 star ratings are much appreciated. If you are unhappy with your purchase, please contact us on negative / neutral feedback or low star ratings. ReturnIf you receive an item is damaged or defective, we will refund you or replace it with identical one. All damaged or defective items may be exchanged within 30 days. Contact usWe take full responsibility if you receive wrong item or damaged item or item not as describled. If you’re not satisfied for any reason, please feel free to contact us. Just send us an eBay message.
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