PURCHASE OF ELECTRONICS LAB EQUIPMENT

Multi output Regulated DC Power Supply: SPECIFICATION: Input Voltage : 230v ±10% Ac 50 Hz Output Voltage Current : (A) 0-30v Dc/2amp (B) 0-± 15 Vdc/1amp (C) 0 - 5v Dc / 5amp Load Regulation (Cv) : 0.05 % ± 3mv From No Load To Full Load Load Regulation (Cc) : 0.05% ±1 Ma From No Load To Full Load Line Regulation (Cv) : 0.01 % ±3mv For 10% Variation Input Voltage Line Regulation (Cc) : 0.01% ±1 Ma For 10% Variation Input Voltage Operating Mode : Independent And Tracking Mode Ripple : Less Than 1 mv Meter : (1) Two Digital Meters To Monitor The Output Voltage Current Of Output A (2) One Digital Meter To Monitor The Output Voltage Of Output B , Selectable By Switch (3) One Digital Meter To Monitor The Voltage Of Output C Protection : Against Short Circuit And Overload Warranty Should have 3 – year’s warranty.

CATHODE RAY OSCILLOSCOPE: • Dual Trace Dual Channel Oscilloscope • Bandwidth: 30MHz • Full bandwidth sweeping circuit is used in the sweeping system • The flexible and convenient triggering mode has the functions for selecting signals from one channel or triggered by Ext signals • ALT trigger to observe signals from two irrelative channels • The instrument has the functions of TV-H / TV-V synchronization and trigger-lock to observe all kinds of signals stably • From the terminal for trigger input, CH1 and CH2 signals can be output along with the triggering channel to connect the Ext frequency counter • Y deflection operation: Y1, Y2, ALT, CHOP, ADD, mode X-Y • Vertical Deflection: 5mV/Div to 20V/Div in factor 1-2-5 sequence in 12 steps • Rising time: < 18nS • Maximum Input Voltage: 400V (DC +ACp-p) • Triggering Source: Y1, Y2, ALT, POWER, EXT • Trigger Coupling: AC/DC (EXT), NORM/TV-H, TV-V • Horizontal Sweep Mode: AUTO, TRIG, LOCK, SINGLE • Sweep time factor: 0.1uS/div to 0.2s/div in 1-2-5 sequence in 20 steps. • Magnification: x10 • X-Y Mode input: X-Axis YI and Y-Axis Y2 • Z Axis minimum input level: TTL Level • Calibration Signal: Square wave of 0.5V at 1kHz • CTR Display size: 8cm x 10cm. Warranty: Should have 3 – year’s warranty.

Arbitrary Function Generator: • Make: HTC FG2002 • Frequnecy Range • 0.1Hz-2MHz (FG-2002) • 0.1Hz-10Mhz (FG-2010) • Waveforms • Sine wave, Square wave, Triangle wave, Positive & Negative Sawtooth and Positive & Negative Pulse • Square-wave front • 0.1Hz-2MHz<100ns • 0.1Hz-10MHz<35ns • Sine wave Distortion • <1% (10Hz-100KHz) • Frequency response • 0.1Hz-100KHz<±0.5dB • 100KHz-5MHz<±1dB • 100KHz-2MHz<±1dB • TTL/CMOS output • Level: TTL pulse low level is no more than 0.4V, high level is no less than 3.5V • Rissing time: no more than 100ns • Output: Impedance: 500±10% • Amplitude: no less than 20vp-p (Empty load) • Attenuation : 20dB 40dB • DC bias 0-±10V (Continously adjustable) • Adjustment range of symmetry: • 90:10-10:90 • VCF input • Input voltage: 5V-0V±10% • The maximum Voltage ratio: 1000:1 • Input signal: DC-1KHz • Frequency meter • Mesuring range: 1Hz-20MHz • Input Impedance: no less than 1MΩ/20pF • Sensitivity: 100m Vrms • The maximum input: 150V (AC+DC) with attenuator • Input attenuation: 20dB • Mesurement error: <0.003%±1digit • Voltage: 220V±10% (110V±10%) • Frequency: 50Hz±2Hz (220V±10%)