• 2N3819 Philips Semiconductors
  
  N-channel J-FET

• 2N3819/D
  
  JFET VHF/UHF Amplifier

• 2N381902 FAIRCHILD
  
  N-Channel Amplifier

• 2N3819_02 Fairchild Semiconductor
  
  N-Channel RF Amplifier