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Seller Store eama0910
(10165) 99.4%,

Location: Wuhan
Ships to: US,
Item: 115813331940

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
Return policy details:
Non-Domestic Product:No
Compatible Brand:Universal
Custom Bundle:No
Color:Yellow
Compatible Model:—
MPN:Does not apply
Modified Item:No
Amplifier Class:A
Jooloyo:Jooloyo
Type:PCB
Unit Type:Unit
T-Phonum 2 PCB:T-Phonum 2 PCB
Country/Region of Manufacture:China
Unit Quantity:1pc

1pc T-Phonum 2 MM-MC Phono Amplofier RIAA-PCB Tech highlights1、The circuit employs a particular two-stage RIAA equalization network, one active and one passive, which effectively solves the problems of accuracy, noise and input dynamics that typically arise using traditional active or passive networks.2、Some DIP switches on the board allow you to adjust the gain (MM and MC modes), the input capacity (to optimize the interface of the MM heads) and the input resistance (for the MC heads).3、The circuit employs a total of four individual operational amplifiers for audio applications, two for each channel.4、The two-stage RIAA network is low impedance to minimize thermal noise.5、This is driven by the first op-amp, which also provides a significant portion of the overall gain. The second op-amp provides the remaining necessary gain, which can be adjusted according to the output level of the cartridge used.6、The DIP switches can be activated according to various combinations to obtain 4 gain values, 8 capacitance values and 4 input resistance values.7、PCB Size: 100x120x1.6mm 1oz Cu, HASL with leadSchematic & key point of debuggingPCB comes with component parameters for easy installation.We only refer the schematic of the amplification part of the circuit. If you need full circuit parameter, please read the component value with the PCB by yourself; we do not provide additionally.InstructionsSince the PCB holes are plated through, you only need to solder the parts from the bottom of the board. Do not drill or enlarge the holes because that would damage the through-plating.Clean both sides of the blank PCB with paper towel and isopropyl alcohol or electronics flux remover, then solder the components to the board, starting with the lowest profile parts.Make sure the correct part goes into each position on the circuit board. Measure each resistor with your multimeter to ensure it’s the proper value.Clean up the solder flux residue from the board with isopropyl alcohol (or electronics flux remover) and a brush.nspect all solder connections carefully, using a magnifying glass, to make sure there are no solder bridges or cold solder joints. Use a multimeter in ohms scale to check for short circuits. As a minimum, you should verify that the V+ DC are not shorted to ground, or to each other, and that the output pad isn’t shorted to ground. Correct any mistakes before proceeding to the next phase.Parts listPCB PicsPayment Method: PayPal preferred Shippment: 1.We provide free shipping 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/DHL/FedEx for alternative shipping method for corresponding fees. Please let us know before payment if you need split shipment. 2.International shipping requires complicated shipping procedures (such as both countries customs, transit stations etc.), also will be affected by many factors, such as holidays, weather conditions etc, If you have not received your shipment within 30 days from payment, please contact us. 3.Time of Delivery:Based on the China Post Airmail or Hong Kong Post Airmail and our experience, kindly please be noted that To United States / United Kingdom / Australia, it takes around 10-15 business days; To Canada, it takes around 12-18 business days; To Brazil / South America, it takes around 25-35 business days. To Italy / France / Spain / Germany/ Eastern Europe, it takes aournd 15-20 business days. Returns & Replacements & Repair: We accept returns & replacements within 30 days from the day the customer receive the products, please make first contact within 30 days from receiving the order. Products should be returned in original condition. As a benefit to our customers, we also provide repair within 3 months from the day when this item is shipped out, after repair is done, we will send you the item, but the customer should pay both shipping ways. Feedback: 1)Your Feedback is really important to us, please take a few seconds to leave great feedback if you are satisfied with our product or service, thank you so much! 2)We always offer the lowest price for best goods and service to you. 3) Please contact us before leaving neutral(3 stars) or negative(1-2 stars) feedback.We will try our best to solve the problem and leave you a happy shopping mood here. Thank you!

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