Maker Factory ELECTRONICS EXPERIMENTS BOX Manual page 8

2.81 AF switch ................................................................................................. 198
2.82 Voltage regulator ..................................................................................... 199
2.83 LC generator ............................................................................................204
2.84 Simple battery monitor ............................................................................206
2.85 Audio Fade-in and Fade-out .................................................................... 208
2.86 Level meter ..............................................................................................209
2.87 Acoustic continuity tester .......................................................................... 211
2.88 Logic probe ...............................................................................................212
2.89 Active probe ............................................................................................ 214
2.90 IR control ................................................................................................. 218
2.91 Constant voltage source ...........................................................................220
2.92 Class A end-level ...................................................................................... 222
2.93 IR control ................................................................................................. 223
2.94 Push-Pull amplifier ................................................................................... 225
2.95 Switch-off delay .......................................................................................226
2.96 Siren ........................................................................................................229
2.97 Discrete OPAMP .......................................................................................230
2.98 NAND and NOR gates ............................................................................... 232
2.99 Active Zener diode ...................................................................................234
2.100 Detector receiver ..................................................................................... 237
2.101 Simple condenser tester (Tantal, E-caps) ...................................................240
2.102 Generating hydrogen ................................................................................ 241
3 Circuit diagrams .................................................................................................245
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