MOFI-T-Phonum 2 MM/MC Phono Amplofier RIAA–PCB & DIY KIT & Finished Board

MOFI-T-Phonum 2 MM/MC Phono Amplofier RIAA–PCB & DIY KIT & Finished Board
MOFI-T-Phonum 2 MM/MC Phono Amplofier RIAA–PCB & DIY KIT & Finished Board
MOFI-T-Phonum 2 MM/MC Phono Amplofier RIAA–PCB & DIY KIT & Finished Board
MOFI-T-Phonum 2 MM/MC Phono Amplofier RIAA–PCB & DIY KIT & Finished Board
MOFI-T-Phonum 2 MM/MC Phono Amplofier RIAA–PCB & DIY KIT & Finished Board
MOFI-T-Phonum 2 MM/MC Phono Amplofier RIAA–PCB & DIY KIT & Finished Board
MOFI-T-Phonum 2 MM/MC Phono Amplofier RIAA–PCB & DIY KIT & Finished Board


$8.12 Buy It Now or Best Offer
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Seller Store dy-laser
(467) 100%,

Location: Wu Han
Ships to: US,
Item: 395551329470

Return postage will be paid by:Buyer
Returns Accepted:Returns Accepted
After receiving the item, your buyer should cancel the purchase within:30 days
Return policy details:
Supported Modes:
Receiver Combo Features:
MPN:Does Not Apply
Year Manufactured:
Surround Sound Formats:
Audio Outputs:
Number of Outputs:1
Colour:Yellow
Amplifier Class:
Mofi:Mofi
Type:Power Amplifier
Unit Type:Unit
Audio Inputs:
Number of Channels:1
Number of Inputs:1
T-Phonum 2:T-Phonum 2
Features:
Country/Region of Manufacture:China
Unit Quantity:1
Power:

MOFI-T-Phonum 2 MM/MC Phono Amplofier RIAA –DIY KIT & Finished Board DIY KIT ProjectTo complete this project, high level knowledge of electronics and rich experience in terms of soldering and testing are required.Due to time zone and language communication restrictions, we can only provide limited technical support, and you need to solve problems by yourself.We do not provide information other than the product introduction page.MOFI-Shiratori MM/MC Phono Amplofier RIAA ProjectTech 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 lead.Product configurationDIY kit: Contains the PCB and the components needed on the PCB, but does not include the power transformer .Finished board: Based on the well-tested board on the standard version kit, we verified all key points’ voltage, and used the signal generator and oscilloscope for analog waveform double verification. We will not use this board for listening test.All finished pcbs are all carefully hand-soldered and fully tests, so the price is higher and less cost performance. Price-sensitive consumers but with have DIY ability are recommended to choose the kit.Schematic & 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.DIY KIT 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 list Shippment:1.Every parcel will be registered with tracking number. 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 et. If the transportation time is not normal, please contact us.

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