310
Fig. 3.160:
Circuit
160 – Needle pulse
generator 500 Hz
Fig. 3.161:
Circuit
161 – Needle pulse
generator 2 kHz
Circuit 157 to 163: T1 and T2 form a sensitive bistable amplifier. A feedback is triggered with C1 (C2). The time
delay is determined by the combination R1/C1 (C2). This way, cyclical fast tipping processes are triggered..
Summary of Contents for ELECTRONICS EXPERIMENTS BOX
Page 4: ......
Page 265: ...267 Fig 3 56 Cir cuit 56 Audio limiter Fig 3 57 Circuit 57 Amplifier for a storm detector...
Page 269: ...271 Fig 3 64 Circuit 64 Stabilizer for 1 9 V Fig 3 65 Circuit 65 Stabilizer for 2 5 V...
Page 275: ...277 Fig 3 80 Circuit 80 Quiztimer 30 seconds Fig 3 81 Circuit 81 Handy diode tester...
Page 315: ...317 Fig 3 179 Circuit 179 HF generator 150 kHz Fig 3 180 Circuit 180 HF generator 420 kHz...
