Description: MOFI Accuphase_C-3850 Core Circuit Pre-Amplifier DIY KITs Tech highlights: Class-a Pre-Amplifier. Voltage and current dual feedback circuit. PCB is small and flexible, more suitable for all kinds of chassis installation.all-in-one design, single-point grounding, ground resistance is close to the 0.02 ohm resistance value, low noisedesign. More cost-effective sound modification plan.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.please keep test point voltage close enough to it, +-20% is also permittedDIY 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.Inspect 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+ and V- DC inputs 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 listPicsDIY KIT
Price: 25.6 CAD
Location: wuhan
End Time: 2024-08-30T06:42:45.000Z
Shipping Cost: 0 CAD
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Return shipping will be paid by: Buyer
Returns Accepted: Returns Accepted
Item must be returned within: 30 Days
Return policy details:
Brand: Jolooyo
Type: Pre-Amplifie
Number of Channels: 2
Color: Yellow
Model: C-3850
MPN: C-3850
