1pc Grado-PH-1 Phono Amplifier(MM) RIAA Finished Board
 
Note: We also provide the kit bulk board, welcome to ask us the price, if you need the bulk model, you can directly leave a message on the order and shoot the finished board, we will refund you the extra money charged, thank you for your trust and support ~!
 
 
Tech highlights:
 
all-in-one design, single-point grounding, ground resistance is close to the 0.02 ohm resistance value, low noisedesign

PCB is Small mini

Dual op amp design, can replace different op amps to present different sound performance.


PCB SIZE: 76x93x1.6mm 1oz Cu, HASL with lead.


Power requirements: Best:AC15-0-15V@0.4A

 
Product configuration:

1pc Grado-PH-1 Phono Amplifier(MM) RIAA  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.

Schematic & key point of debugging

PCB 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 permitted
 
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