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A3 IRFP240 IRFP9240 fully symmetric daul differential FET Power Amp Board Kit

Product Description


A3 IRFP240 IRFP9240 fully symmetric daul differential FET Power Amp Board Kit
 
 
This is bulk kit board, it need to be welded by yourself

The kit doesn't contains radiator and 2 main capacitors.
 
Parameters:
 
PCB size: 150X100MM
Supply voltage: AC16X2 to AC35X2
  
 
Features:
 
1.  fully symmetric double differential input structure
2. use PASS dedicated high power field effect transistor IRFP240 IRFP9240 output, timbre closer to the electron tube.
3. at the voltage of AC35X2, the maximum output of 100W 8ohm
4. resistance: Copper foot 718, green capacitance: German ERO
5. the input tube is ON A42,92, and the drive pipe is Toshiba C5171 A1930.
6. Japanese OMRON relay plus PC1237, with switch machine delay, DC protection and other functions.
7.PCB is a blue double-sided gold plate
8. the green terminal is the horn output position, the middle 2 ground wires, and the left and right two channels are the positive poles.
9. 50A Japanese SANKEN rectifier bridge with very low internal resistance


Attention:
DIY KIT, NOT WELD ,The kit doesn't contains radiator and 2 main capacitors.
The static current of the plate is adjustable, and the static state can be adjusted according to the size of the heat dissipation.
Current. Heat sink can be adjusted to class A, or to 10MA , heat lower than LM3886 
Absolutely no noise as long as the input is used well
The output power is directly proportional to the supply voltage. If the power supply is AC 18V,
The output is approximately 35W,  the output is 80W at AC26V 
when at AC35V. the output is 100W
 
 
Debug:
It only needs to adjust the quiescent current, and increase the clockwise static state. The digital pen is connected with the 0.27ohm resistor 2 ends.
Measure pressure drop, adjust to 30-100MV,
High temperature can be adjusted to high point.
Heatsink can be enough to increase static power for small class a power amplifiers.
 
Quantity:
1pc

 
Warranty:
90 days after receipt of order 
we accept paypal only.we will send the package to yr paypal address,pls make sure yr paypal and ebay address are all the same.
 
Local customs duties are at buyer's account

 if you want the items shipped by DHL UPS or Fedex, pls contact with us first for extra shipping charge

all import custom tax paid by buyers 

To USA:About 7-17 days by USPS

To Russian:12-20 days

To United Kingdom, Australia,Canada,France Spain:15-25 Days

From Nov,all package will be delayed in the busy season,pls extend yr patience more than 5-10 working days than usual

we provide full refund if the package did not arrive to you more than 30 days.
 
or sending a replacement if the items can not work or lost during transhipment.
 
we provide high quality products and good service,welcome to our shop.
we did not work on weekends,all email will reply in 48 hours except for weekends.
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On Jan-04-22 at 05:10:28 PST, seller added the following information:

DataCaciques