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MODEL H1: MULTIVIBRATORS
USING TRANSISTORS
The purpose of this experiment is to
investigate the operation and characteristics of the astable
multivibrator, the mono-stable multivibrator and bistable
multivibrator, using transistors. Astable multivibrator
is free running rectangular wave generator. It has two outputs,
which are 180 degrees out of phase. Monostable is a one-shot
multivibrator and R is triggered by sharp pulse, obtained
by differentiating a square-wave. It produces one output
pulse for each input pulse. A bistable is a flip-flop and
it is stable either in '1' or '0' state, till it is triggered
into their other state. Output changes for every two Input
triggers. It can also be used as divide-by-two counter.
Built in regulated power supply:+5V/300mA
Input Supply: 230 VAC/50Hz mains operated.
Dimension: 27cms x 17cms x 10cms.
Weight: 500gms
MODEL H2: MULTIVIBRATORS USING OPERATIONAL
AMPLIFIERS
Objectives of this experiment:
The purpose of this experiment is to design and demonstrate
the operation of stable (free running), monostable (one-shot)
and bistable (two stages) multivibrators, using op-amp.
Built in regulated power supply: +15V/300mA;
-15V/300mA
Input Supply: 230 VAC/50Hz mains operated.
Dimension: 27cms x 17cms x 10cms.
Weight: 500gms
MODEL H3: MULTIVIBRATORS
USING DIGITAL INTEGRATED CIRCUITS
Objective of this experiment:
The purpose of this experiment is to
design and demonstrate the operation of an astable, monostable
and bistable multivibrator, using digital ICS.
Built in regulated power supply: + 5V/300mA
Input Supply: 230 VAC/50Hz mains operated.
Dimension: 27cms x 17cms x 10cms.
Weight: 500gms
MODEL H4: MULTIVIBRATORS
USING IC-555 TIMER
Objectives of this experiment: The purpose
of this experiment is to demonstrate the operation of an
astable, monostable and bistable multivibrator, using timer-IC-"555".
Built in regulated power supply: +5V/300mA
Input Supply: 230 VAC/50Hz mains operated.
Dimension: 27cms x 17cms x 10cms.
Weight: 500gms
MODEL H5: SCHMITT TRIGGER (TRANSISTOR
& IC-BASED)
Objectives of this experiment:
1. To construct an emitter-coupled Schmitt
trigger using transistors.
2. To observe that this produces a rectangular wave output
from a sine wave input. To construct Schmitt trigger using
op-amp.
3. To observe that any increase in amplitude of input sine
wave has an effect on the width of the output waveform.
4. To verify these facts, using an IC-7413.
Built in regulated power supply + 15V/300mA,
-15V/300mA.
Input Supply: 230 VAC/50Hz mains operated.
Dimension: 27cms x 17cms x 10cms.
Weight: 500gms
MODEL H6: TIMER CIRCUIT EXCITING A TIME-DELAY
RELAY
Objectives of this experiment:
1. To construct a timer circuit (IC-555)
which can excite a time delay relay after a specific time
interval after the application of power to the timer circuit.
2. To repeat the same experiment such that the relay contacts
close during the time delay period.
Built in regulated
power supply: + 5V/300mA
Input Supply: 230 VAC/50Hz mains operated.
Dimension: 27cms x 17cms x 10cms.
Weight: 500gms
MODEL H7: CONSTRUCTION OF TRANSISTOR
TIMER
Objectives of this experiment:
1. To construct timer using transistor.
2. The frequency depends on capacitor or resistor.
Built in regulated power supply + 15V/300mA
Input Supply: 230 VAC/50Hz mains operated.
Dimension: 27cms x 17cms x 10cms.
Weight: 500gms
MODEL H8: TWILIGHT -RELAY USING 555
& LDR
Objectives of this experiment:
To construct light operated relay using
555. The ambient light around the cds cell decreases and
timer activates the relay.
Built in regulated
power supply: +12V/300mA
Input Supply: 230 VAC/50Hz mains operated.
Dimension: 27cms x 17cms x 10cms.
Weight: 500gms
MODEL H9: COUNTER USING 555 & LDR
Objectives of this experiment:
To construct counter using 555 and LDR
circuit. Depending upon the intensity of the resistance
value of LDR varies & that will vary the frequency of 555
output.
Built in regulated power supply: + 5V/300mA
Input Supply: 230 VAC/50Hz mains operated.
Dimension: 27cms x 17cms x 10cms.
Weight: 500gms
MODEL H10: BURGLAR ALARM USING 555
& LDR
Objectives of this experiment:
To construct Burglar alarm using 555
& photocell.
Built in regulated power supply: +5V/300mA
Input Supply: 230 VAC/50Hz mains operated.
Dimension: 27cms x 17cms x 10cms.
Weight: 500gms
MODEL H11: TEMPERATURE CONTROL CIRCUIT
USING 555 &THERMISTOR
Objectives of this experiment:
To construct temperature controller circuit
using 555 with a thermistor resistor divider. The timer
turns ON the heating element.
Built in regulated power supply: +9V/300mA
Input Supply: 230 VAC/50Hz mains operated.
Dimension: 27cms x 17cms x 10cms.
Weight: 500gms
MODEL H12: AUDIBLE
LOGIC PROBE USING 555
Objectives of this experiment:
To construct an audible logic probe using 555
Built in regulated power supply: +5V/500mA
Input Supply: 230 VAC/50Hz mains operated.
Dimension: 27cms x 17cms x 10cms.
Weight: 500gms
MODEL H13: VISUAL LOGIC PROBE USING
555
Objectives of this experiment:
To construct Visual Logic probe using
555
Built in regulated power supply: +5V/300mA
Input Supply: 230 VAC/50Hz mains operated.
Dimension: 27cms x 17cms x 10cms.
Weight: 500gms
MODEL H14: CONTINUITY
TESTER USING 555
Objectives of this experiment:
To construct continuity tester using
IC 555 and you can test any PCB or any circuit by hearing
the output on 8W speaker or buzzer.
Built in regulated power supply: +9V/300mA
Input Supply: 230 VAC/50Hz mains operated. Dimension: 27cms
x 17cms x 10cms. Weight: 500gms
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