tender for purchase of lab equipments(asper specification) , purchase of lab equipments(for technical specifications and quantity details please refer nit) , dual output regulated dc variable power supply • input voltage: 230v/50 hz ac. • output voltage: (0-30)v dc. • output current: (0-2)a dc. • protection circuit: over voltage, over current, and short-circuit protection. • high efficiency: greater than 85%. • low ripple and noise: less than 50 mv. • digital display , decade resistance box range: 1 ω to 10 mω. • rotary switch selection with 6 dials. • steps: 1 ω, 10 ω, 100 ω, 1 kω, 10 kω, 1 mω. • accuracy: ±1% , decade capacitance box range: 100 providing fixing to 100 μf • rotary switch selection with 6 dials. • maximum voltage: 350 v. • accuracy: ±1% , decade inductance box • range: 10 μh to 10 h. • rotary switch selection with 6 dials. • low-loss inductors. • accuracy: ±1%. , dc ammeter dc ammeter analog - moving coil - (0-10)ma, class 1.0 (±1 % full-scale) accuracy , ask modulation and demodulation kit • message signal1: 8-bit variable data,amplitude 5v. • message signal 2: debounced data, amplitude low (0) and high (5 v). • message signal 3: fixed data 25 khz, 12.5 khz, 6.25 khz, 3.12 khz, amplitude 5 v. • carrier signal: sine wave, frequency 200 khz, amplitude 5 v. • modulator type: switching modulator using analog switch / transistor switching ic. • demodulator: envelope detector and lpf. • comparator: lm311 based. • supply voltage (board): +12 v, +5 v dc. • supply current: 100 ma minimum. • input voltage: 230 v ac, 50 hz. • interface connectors: 2 mm banana socket