Op Amp Pre-stage Preamplifier Board (Upgraded Version) ALPS16 Version

PCB Board / ALPS16 / ALPS27 NE5532 ±15V Fully Direct-coupled Dual op amp Pre-stage Preamplifier board (Upgraded Version)

You have Three options:

● 1pcs PCB Board ● 1pcs ALPS16 Potentiometer Version Finished Board ● 1pcs ALPS27 Potentiometer Version Finished Board

Upgraded version:

● Increase the main capacitor. ● Increase the potentiometer. ● Use fast recovery diodes. ● The power supply voltage is increased from 12v to 15v.

Features:

● The Pre-stage adopts full direct coupling circuit design, no input, output, decoupling capacitors ● Especially suitable for LME49720NA/HA such ultra-low temperature drift operational amplifier, no matter how it is used, the zero drift is very small. ● It can give full play to the low frequency and high resolution characteristics of LME49720NA/HA.

Product Description:

● The board's operational amplifier adopts TI NE5532 and an operational amplifier seat, which is easy to upgrade. ● Integrated power, volume, and preamplifier in one ● Suitable for LM3886/TDA7293/LM4766/LM1875 as front stage ● LM317/337 is used for high-precision voltage stabilization, with voltage stabilization accuracy and ripple rejection ratio 78/79 higher by a grade ● Operational amplifier power supply ±15V ● The finished board has no noise and the work is very stable (the low noise of the front stage is a major feature, and it is the benchmark for the front stage of our shop) ● The ALPS 16 or 27 potentiometer can be used for volume control.

Parameters:

● Printing board size: 9.6mm×5.8mm, 2mm thick printing board, 70um thick copper ● Power supply Voltage: ±15v ● Magnification: 4.3 time

Package include:

MINI NE5532 Fever Preamp Board

About shipping
Shipping and Packaging All items will be double checked and well packed before sending.Items will be dispatched within 2 business days after buyers pay for the order. It usually takes about 14 to 18 working days for delivering the package to the destination(for remote areas,it may take a little longer). 

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