AVT2902 A

The presented amplifier is distinguished by high power amplification and high efficiency. This means less distortion in the amplified signal - in comparison to amplifiers constructed on single transistors working in an analogous class. An additional consequence of the adopted solution is the necessity of winding only two windings of the HV transformer. The amplifier uses popular IRF MOSFET series transistors.

The device is especially recommended for amateur enthusiasts who want to increase the power of their equipment

Selected parameters:

• work in the 80m band
  
• output stage configuration - anti-parallel
  
• output power approx. 90W (3W control power for 70V power supply)
  
• possible two variants of supplying the output stage
  
• the possibility of using a 'reset' relay, the quiescent current during listening
  
• power supply - 70 Vdc (35Vdc)
• dimensions of the tile 160x100mm
• printed circuit board and documentation included
  
  Detailed description in EdW 6/09