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2pcs JC-3 Class A Transistor parallel Power Amp Finished Board 20W

Product Description

2pcs MARK LEVINSON JC-3 Class A Transistor parallel Power Amp Finished Board 20W
 
Including two finished boards that has been welded and debugged, with thermal bridge. Properly energized can be used
 
 
Parameters:
Input voltage: DC 20V-0-20 (transformer output voltage 16-0-16, power 200VA or more)
Board size: 270 * 95mm (including the size of the thermal bridge)
300mm depth of the radiator on both sides of the chassis can be used.
 
 
Features:
* 20 watt class A Rear-amp, you need to use with pre-amp
* Output power Class A 20 watts equivalent to Class A 80 watt, the general home speaker pushcase frame can be used
* All new components, resistors use dale 0.5w specifications. In the power tube and tube all use Anmeisen products.
* The amplifier circuit is redesigned and the power tube can be mounted on a radiator board
 
 
P.S.:
Debugging points:
VR1 100R is to adjust the 220R resistor voltage, close to 1.3V, and Vr3 5K will be linked.
VR2 1K Adjusts the midpoint voltage to 0V
VR3 5K Adjusts the quiescent current.
Before the power test machine need to cascade bulb in 220V transformer primary. Other steps can refer to ksa50mk2 debugging method.
 
 
Quantity:
2pcs
 
 
Warranty:
90 days after receipt of order
 
weight about: 2 

1. Shipping time as following for yr reference:

    To USA:10-15 working days

    To UK,European countries:15-25 working days

    To South American:35-40 working days

 


2. If you want fast shipping,pls contact with us first for extra fast shipping cost.

 
3.all import tax paid by buyers,NOT SELLER 

we accept paypal only

1.If you don't receive the order beyond 30 working days after your payment, please contact us, we will resend or refund.

 
2.90 days warranty 
Once you Feel dissatisfied with the itmes,please use E - mail contact us first,pls Do not give a Neutral or Negative feedback without any negotiation.thanks a lot!
 

We provide aftermark diaphragm ,driver and voice coil and many others. please contact us if you can not find the listing in my ebay store .

 

working time: Mon--Fri, 9.00am--18.00pm (Beijing time)

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On Jan-04-22 at 04:49:37 PST, seller added the following information:

DataCaciques