weiliang JC-2 Preamplifier Class A Parallel power Kit WLX-6 | Home Theater Amplifiers

weiliang JC-2 Preamplifier Class A Parallel power Kit WLX-6 | Home Theater Amplifiers

Description

JC-2 Preamplifier Class A Parallel power Kit WLX-6

This is a kit,you need to solder it by yourself.This kit don't include the ALPS controller.if you want to buy it ,pay me more 8USD.

In order to get better sound, and we will continue to improve items, you receive the item may be a little different picture. Thank you understanding.

Now this board has been improved.and the sound is better,

Description:

Voltage:AC 15V-0-15V

Commissioning is simple:

A fine-tuning adjustment resistor power supply (left), so that the power regulator output + - 16V down
2 Adjust the trim resistor 200 in Europe, so that the voltage is 470 Euro 1. 4-1. 5V, panel labeled
3 Adjust the former part, the 1K resistor to output close to the European tuning 0MV

Circuit design parameters:

Input stage :2.5-3MA
Voltage amplifier stage :6.5-7 .5 MA
Output level :6.5-7 .5 MA


PCB Size: 113MM X 105MM

What's include?

• JC-2 Preamplifier Class A Parallel power Kit WLX-6

 Notes
10P board compensation capacitors do not need to install. analytical better
If you only AC15V transformer if the voltage to be adjusted to + _15V as well, if the transformer input 18V, 18V is regulated to be good!

Note that package price is non-potentiometer!!! suite compatible with 16 and 27 type potentiometer

Circuit reference from the crew line JC-2, an increase of field tube buffered output impedance adaptation circuit to improve its ability to FET input circuit is fully symmetrical structure, the circuit gain is preset to 4 times