I. General Introduction to Digital and Analog Electronics Training Equipment

1. Dimensions: 14007001450mm. The main frame is constructed from 60*60mm high-quality industrial profiles, with the table body made of high-quality steel plate. A half-height, lockable hanging cabinet (350mm from the ground) is installed underneath. The outer surface is coated with epoxy resin, ensuring the machine’s sturdiness, durability, and aesthetic appeal. The table is equipped with braked casters for easy movement and positioning. The tabletop is made of 25mm thick high-density fiberboard with a fire-resistant outer layer and PVC edge banding. The tabletop is wear-resistant, heat-resistant, stain-resistant, fire-resistant, antibacterial, mildew-resistant, antistatic, and easy-to-clean.
2. Power Supply: AC220V±10%, 50/60Hz, rated circuit 5A, equipped with a leakage protection switch. Ambient temperature: -50℃～40℃, relative humidity ≤85%RH (25℃).
3. The motherboard is made of 2mm thick printed circuit board. The front side is printed with component symbols and corresponding wiring, while the back side contains printed circuitry and soldered components.
4. The experimental platform is equipped with four sets of double-pole sockets for powering instruments and meters.

II. Digital Circuit Module

1. One set each of ±15V/0.5A and ±5V/0.5A power supplies, both with short-circuit and overload protection and automatic recovery function, connected to the main digital circuit experimental panel.
2. Two sets of single-pulse signal output modules.
3. One set of continuously adjustable frequency pulse sources, with coarse and fine frequency adjustment.
4. One set each of fixed-frequency pulse sources outputting 1MHz, 100KHz, 10KHz, 1KHz, 100Hz, 10Hz, and 1Hz frequencies.
5. One set of active buzzers (with driver circuit).
6. One set of sixteen logic level indicators.
7. One set of sixteen logic level outputs.
8. Two sets of BCD-encoded switch logic level outputs.
9. Four sets of BCD-decoded LED digital tube display circuits, each with an independent power supply switch.
10. Discrete components: One each of adjustable resistors/potentials (10KΩ, 100KΩ, 1MΩ); one each of passive crystal oscillators (12MHz, 6MHz, 4MHz, 32.768KHz); two each of capacitors (22pF, 10nF, 100nF); three 1N4148 diodes.
11. Six DIP14 locking IC sockets; five DIP16 locking IC sockets; three DIP20 (wide and narrow) locking IC sockets; two DIP40 (wide and narrow) locking IC sockets.
12. One set of universal adapters for discrete components, compatible with resistors, capacitors, transistors, etc.

III. Analog Circuit Module

1. Equipped with ±12V/0.5A and ±5V/1A, one set each, with short-circuit and overload protection and automatic recovery function, connected to the main panel of the analog circuit experiment.
2. Position transducers/adjustable resistors: 100Ω (1 unit), 220Ω (1 unit), 470Ω (1 unit), 4.7KΩ (1 unit), 1KΩ (1 unit), 10KΩ (2 units), 20KΩ (2 units), 51KΩ (1 unit), 68KΩ (1 unit), 100KΩ (1 unit), 47KΩ (1 unit, multi-turn).
3. One DIP14 locking IC socket; two DIP8 locking IC sockets.
4. One 8Ω/0.5W speaker.
5. 1 One set of LM317 experimental units, one set of LM7805 experimental units, one 4007 rectifier unit, one 470uF capacitor, one 10uF capacitor, and one set of Zener diode experimental units.
6. One photodiode, one phototransistor, one microphone, one 5516 photoresistor, two 1N4148 photoresistors, one 300R/5W resistor, one red LED, one green LED, one 5V active buzzer, two 1N4618 Zener diodes, three OP07C operational amplifiers, one uA741 transport amplifier, and two sets of transistor adapter sockets.
7. Two sets of expansion module sockets.
8. One set of free experimental units.
9. One set of low-frequency signal generators, capable of outputting sine waves, square waves, and triangle waves, with adjustable frequency and amplitude, and output attenuation of -20dB.
10. Two DC voltage signal sources, with selectable output modes of 0~±5V and 0~±0.5V.

IV. Practical Training Projects

1. Digital Circuit Experiments
   1.1 Transistor Switch Characteristics, Limiters, and Clamps.
   1.2 TTL Integrated Logic Gate Logic Function and Parameter Testing.
   1.3 CMOS Integrated Logic Gate Logic Function and Parameter Testing.
   1.4 Integrated Logic Circuit Connection and Driving.
   1.5 Combinational Logic Circuit Design and Testing.
   1.6 Decoders and Their Applications.
   1.7 Data Selectors and Their Applications.
   1.8 Flip-Flops and Their Applications.
   1.9 Counters and Their Applications.
   1.10 Shift Registers and Their Applications.
   1.11 Pulse Distributors and Their Applications.
   1.12 Generating Pulse Signals Using Gate Circuits—Self-Excited Multivibrator.
   1.13 Monostable Multivibrator and Schmitt Trigger—Pulse Delay and Waveform Shaping Circuits.
   1.14 555 Timer Circuit and Its Applications.
   1.15 D/A and A/D Converters.
   1.16 Quiz Contest Buzzer Device—Comprehensive Experiment.
   1.17 Electronic Stopwatch—Comprehensive Experiment.
   1.18 Three-and-a-half-digit DC Digital Voltmeter—Comprehensive Experiment.
   1.19 Digital Frequency Meter—Comprehensive Experiment.
   1.20 Tug-of-War Game Machine—Comprehensive Experiment.
   1.21 2114A Random Access Memory and Its Applications—Comprehensive Experiment.
2. Analog Circuit Experiments
   2.1 Three-digit Single-stage Amplifier Circuit Experiment.
   2.2 Two-stage Amplifier Circuit.
   2.3 Negative Feedback Amplifier Circuit Experiment.
   2.4 Emitter Follower.
   2.5 Differential Amplifier Circuit Experiment.
   2.6 Proportional Summer Circuit.
   2.7 Integrated Power Amplifier Experiment.
   2.8 Active RC Voltage Amplifier Circuit Experiment.
   2.9 Integrator and Differentiator Circuit Experiment.
   2.10 RC Waveform Generator Circuit Experiment.
   2.11 LC Sine Wave Oscillator Circuit and Frequency Selective Amplifier Circuit Experiment.
   2.12 Waveform Transformation Circuit Experiment.
   2.13 Voltage Comparator.
   2.14 Active RC Filter Circuit Experiment.
   2.15 DC Regulated Power Supply Experiment.
   2.16 Low-Frequency Small-Signal Amplifier Circuit Design and Construction Experiment.
   2.17 Programmable Amplifier Experiment.
   2.18 Complementary Symmetry Power Amplifier.