This makes for a good buffer amplifier, with infinite impedance on the input and zero impedance on the output. Ideally, at least. Figure 3 The buffer amplifier provides infinite input impedance and ...

The circuit in Figure 1 sinks a constant current (ICE3) through Q3’s collector and emitter. This design is balanced so changes in Q3’s base-emitter voltage (VBE) don’t affect the current ...

Figure 1 The addition of a simple diode in the emitter circuit yields the symmetric waveform in Figure 4.. Figure 2 This amplifier circuit produces the distorted waveform in Figure 3.. Diode D 1 ...