Maker Factory ELECTRONICS EXPERIMENTS BOX Manual page 179

Circuit 156: LF phase shifter 180°
Setup information
Install the transistor, the six resistors and the three electrolytic capacitors as shown in Fig. 2.156. The nine
jumper wires come next. Check the placement on the board again and only then connect the battery.
Experiment
Our circuit here will delay the passage of LF signals causing a phase shift of about 180°. When this signal
is mixed with the original signal, we have got the well-known Phaser Effect, which can be increased until it
completely exits the phase.
The circuit diagram for this experiment is shown in Chap. 3, Fig. 3.156.
Components required:
1 x 2N3904 transistor,
3 x 2.2 kΩ resistors,
1 x 22 kΩ resistor,
2 x 100 kΩ resistors,
1 x 1 μF electrolytic
capacitor, 2 x 10 μF
electrolytic capacitors,
1 x breadboard, 1 x 9V
battery with clip con-
nector.
Fig. 2.156: LF phase shifter
180 degrees
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