Digital Trainer
Model ETW 4000

The ETW-4000 Digital Trainer is a comprehensive and self-contained system suitable for tuition and experimentation with a range of Digital Logic circuits. All necessary equipments such as power supply, Data Switch, Logic switch, Clock and Logic indicator.

POWER SUPPLIES

POWER SUPPLIES

DC Power supply Fixed

• Output voltages
  • : + 12 volts (positive).
  • : 12 volts (negative).
  • : + 5 volts (positive).
• Current
• : 800 mA (max.) for all voltages.

All DC power supplies equipped with short-circuit protection.

Clock

• Frequency selection: Selector switches (Two positions).
• Frequency output : 1 Hz, 1KHz & 100KHz
• Voltage output : 5Vp-p.
• Terminals output : Normal & Complement.

DATA SWITCHES

• States : + 5 volts or 0 volts.
• Maximum current :10 mA, each switch.
• Output : Four terminals, one for each switch.

LOGIC SWITCHES

• Type: Momentary contact, spring loaded
• Circuit: Two flip-flop latches
• Output states: Complementary, +5 V & +0.2 V

LOGIC INDICATORS

• Type: Four Red LED display with separate input terminal & all Transistor controlled.
• Mode:1 (ON) or 0 (OFF) concept

SOLDER LESS BREADBOARD

• Interconnected nickel plated 840 tie points, fitting all DIP sizes and all components with lead and solid wire AWG # 22-30 (0.3 – 0.8 mm).

ACCESSORIES

• Power cable 1 (one)
• A set of pin-to-pin Connector 10 pcs (ten)
• Manual in English