Description: Introduction: The circuit refers to the well-known JC-2 circuit design, fully symmetrical FET input, voltage level up to 20mA-25mA Class A output, mellow and durable, delicate, crystal clear, well-balanced, very close to the style of a tube amplifier, and very cost-effective , Because it is a fully flat symmetrical structure, the midpoint is very stable and does not require input and output capacitors. The power supply part adopts a class A parallel connection, and the music is very dynamic. Parameter: Input voltage: AC 15V--0--15V Amplifier type: Class A Input stage: 2mA Voltage amplifier stage: 20-25MA Gain: 5 Times PCB Size: 115mm * 93mm NOTE: We have DIY kit or Finished board (Optional) ◆ DIY kit ---- All parts need you to solder and test it. (No potentiometer) ◆ Finished board ---- All parts have been welded and tested OK. (With ALPS Type-27 potentiometer) Debugging instructions: 1: Measure the GND voltage between A and B, and adjust the 2K (202) adjustable resistor voltage to DC+/-15V. 2: Measure the voltage at both ends of the 1.5K resistor, and adjust the 2K (202) adjustable resistor voltage to 2.5-3V. 3: Measure the output midpoint voltage and adjust the 500R (501) adjustable resistor to make the voltage close to 0mV.
Price: 34.99 USD
Location: FOSHAN
End Time: 2024-08-29T07:02:31.000Z
Shipping Cost: 0 USD
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Item Specifics
Return shipping will be paid by: Buyer
All returns accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money Back
Return policy details:
Brand: ZEROZONE
Type: Pramplifier
Number of Channels: 2
Product Code: PRE-K/B202239
Model: JC-2
Country/Region of Manufacture: China
Amplifier Class: A
Available Variations
Color: DIY Kit
Price: 34.99 USD
Available Quantity: 2
Quantity Sold: 0
Color: Finished board
Price: 47.99 USD
Available Quantity: 8
Quantity Sold: 3
