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QRV-05 - The high performance SMD Diamond buffer

 

The component side and also solder side. The component print

The performance is very good. See the technical data!

Interesting features:

  1. The pcb fits virtually any SOT23 small signal transistor and almost any SOT223 power transistor.
  2. The emitter loads have cascodes in order to increase linearity.
  3. SMD caps, including electrolytic caps.
  4. SMD parts which makes the buffer very small and thin.
  5. Input LP-filter if you have problems with RF interference, if not just omit it.
  6. Crossover distortion reducer for the opamp. This is a popular circuit in the DIY community.
  7. Useful for anything as long as power supply voltage is within limits and load not to heavy.
  8. Professional pcb with groundplane which establish good cooling and shielding.