Analog Circuits Synthetic Experimental System

The THM-E4 is designed for the experiments covering the course of analog electronics technology which addresses the requirements of colleges or vocational schools.

DC power supply: -5V~+5V.

AC power supply: 0V, 6V, 10V, 14V, 17V with the function of short circuit protection and auto recovering.

Relay, speaker, buzzer, oscillating coil, controllable silicon, 12V signal lamp, power resistor, rectifier bridge, diodes, integrated three-terminal voltage regulator, capacitor, transistors, buttons and potentiometers are provided.

Experiment modules including: Voltage amplifier circuit, Integrated operational amplifiers, power amplifier, DC stabilized power supply, FET amplifier & differential amplifier, controllable thyristor rectifier circuit, common electronic devices. Experiment boards can be fixed by the 4 blue sockets

DIP IC sockets(1 14P, 2 8P) and sockets for components connection provided


  • Transistor common emitter amplifier
  • FET amplifier
  • Negative feedback amplifier
  • Emitter follower
  • Differential amplifier
  • Specification measurement of integrated op amp
  • Basic application of integrated op ampI - analog operational circuit
  • Basic application of integrated op ampII - signal processing (active filter)
  • Basic application of integrated op ampIII - signal processing(voltage comparator)
  • Basic application on integrated op ampIV - signal processing(waveform generator)
  • RC sine wave oscillator
  • LC sine wave oscillator
  • Assemble and commissioning of function signal generator
  • VCO(voltage controlled oscillator)
  • LF power amplifier I-OTL power amplifier
  • LF power amplifier II - integrated power amplifier
  • DC stabilized power supply I - series transistor stabilized power supply
  • DC stabilized power supply II - integrated voltage regulator
  • Controllable thyristor rectifier circuit
  • Synthetic experiment - design and commissioning of multimeter
DC power supply ±5V/1A and ±12V/1A with the function of short circuit protection and auto recovering for each circuit.
Function signal generator Output waveform: sine wave, square wave and triangle wave Amplitude ranges: 0~16VP-P. Frequency ranges: 2Hz~2MHz(switched into seven ranges)
Switched attenuation: 0dB, 20dB, 40dB and 60dB(two buttons)
Frequency meter Measuring range: 1Hz~10MHz with 6-digit common-cathode, LED display, strobe time: 1s. Sensitivity: 35mV@1-500kHz/ 100mV@500kHz-10MHz the frequency indicator can be used for measurements of external signal as well
RMS AC digital milli volt meter Measuring range: 0.2mV~600V(RMS value) @ 10Hz~1.5MHz. It is used to measure the RMS value of sine wave, triangle wave and narrow pulse.
20M Two-channel oscilloscope 1) Deflection coefficient: 5mV/DIV-5V/DIV
2) Vertical mode: CH1, CH2, ALT, CHOP, ADD
3 and 1/2 digital multimeter 1) DC voltage: 200mV/2V/20V/200V/1000V ±(0.5%+3)
2) AC voltage: 2V/20V/200V/750V ±(0.8%+5)
3) DC current: 20uA/2mA/200mA/20A ±(1.5%+3)
4) AC current: 2mA/20mA/20A ±(1.5%+5)
5) Resistance: 200Ω/2kΩ/20kΩ/200kΩ/2MΩ/20MΩ ±(0.8%+5)
6) Conductance: (0.1-100)nS ±(1.0%+30)
7) Capacitance: 20nF/200nF/20uF/200uF ±(4.0%+10)
8) Frequency meter: 20kHz ±(1.5%+25) Celsius temperature: -40oC-1000oC   ±(0.75%+3)
9) Special function: diode test, transistor test, ON/OFF alarm, low-voltage display, data hold, turn off the power automatically etc. Input impedance: 10MΩ, sampling rate: 3 times/s, AC frequency response: 40-400Hz, operation mode: manual.
Maximum range: 1999.