It is made of PCB and all the connections are accomplished on the backside of the board
  while the symbols and diagrams specific to each module are clearly silk-screened on the
  faceplates. DIP IC sockets and sockets for components connection are provided. Four blue
  sockets for fixing the experimental modules and a breadboard are provided.

  Two-way ±5V@0.5A and two-way ±15V@0.5A, with the function of short-circuit protection
  and auto-recovery for each circuit.

  It outputs base frequency, divide-by-2, divide-by-4 and divide-by-8 of BCD code and the
  output for the base frequency are: 1Hz, 1kHz, 20kHz.

  One-way continuous adjustable counter pulse: 0.5Hz~300kHz

  Positive & negative single pulse source

  Five-state logic test pen is designed by the logical program device and with different
  colors of LED for output indication.16-bit logic switches and 16-bit level indication,
  6-digit hex seven-segment decoder display, 4 thumbwheel switches (up/down decimal counter).

  Multi-function intelligent tester is MCU-based and available to identify the types of TTL,
  CMOS ICs and available as a frequency meter (range: 1Hz~1MHz).

  It is available to used as a period counter and pulse No. counter etc.
  Components: Pushbuttons, relay, multi-turn potentiometer (10KΩ) and carbon-film
  potentiometer(100KΩ) etc. are installed on the panel.

  1.        Transistor switch characteristic, limiter and clamp

  2.        Characteristics and parameter test of TTL

  3.        Characteristics and parameter test of CMOS

  4.        Connection and drive of integrated logic circuit

  5.        Design and test of combinational logic circuit

  6.        Decoder & its application

  7.        Data selector & its application

  8.        Flip-flop & its application

  9.        Counter & its application

  10.       Shift register & its application

  11.       Pulse distributor & its application

  12.       Pulse signal generation using digital gates-Self-excited multivibrator

  13.       Monostable flip-flop & Schmitt flip-flop-Pulse delay & waveform shaping circuit

  14.       555 time base circuit & its application

  15.       D/A, A/D converter

  16.       First responser--synthetic experiment

  17.       Electrical stopwatch--synthetic experiment

  18.     3 and 1/2 -digit DC digital voltmeter--synthetic experiment

  19.     Digital frequency meter--synthetic experiment

  20.     Tug-of-war--synthetic experiment

  21.     RAM 2114A & its application-synthetic experiment

  DC stabilized power
  supply

  ±5V@0.5A, ±15V@0.5A, the function of short-circuit protection and
  auto-recovery is provided.

  Pulse signal source

  It outputs base frequency, divide-by-2, divide-by-4 and divide-by-8
  of BCD code and the output for the base frequency are: 1Hz, 1kHz,
  20kHz.

  One-way continuous adjustable counter pulse: 0.5Hz~300kHz

  Positive & negative single pulse source

  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:  20kHz ±(1.5%+25)  temperature:  -40^oC-1000^oC
  ±(0.75%+3)

  9. Special function: diode test, triode test, on/off alarm,
  low-voltage display, data hold, self-turning off, functional 
  protection, self-recovery insurance, shockproof, 10MΩ input 
  impedance,3 times/s sample rate, 40-400Hz AC frequency response,
  manual operation and the maximum display is 1999.