Showing 37–47 of 47 results

Sine / Square Oscillator 1 Hz – 1MHz

Wave Shapes : Sine and Square waves output 4 mm sockets. Frequency Range : 1 Hz to 1 MHz using fine and coarse controls. Accuracy : ± 5% on all ranges. Amplitude for sine wave output : 30 Vpp. Amplitude for Square wave output : 15 Vpp Output Impedance for sine wave : Approx. 600 Ohms. Output Impedance for square wave : Approx. 400 Ohms

Study of Operation Amplifier

To demonstrate the function of operational amplifier using TL081 and L272 with discrete components different value of resistors, capacitor. Input can be applied from microphone, LDR. Offset null control is also provided. Output can be fed through the power amplifier into a loudspeaker.

Thermistor Unit

Mounted on transparent covered base for easy demonstration. Diagram and two sockets are provided for use with some circuit. Thermistor is mounted above the base to avoid the damage from heat.

Transistor Char Appt

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Two Input and Gate

To study the AND digital logic gate and verification of the truth table.

Two Input Ex-or Gate

To study the EX-OR digital logic gate and verification of the truth table.

Two Input Nand Gate

To study the NAND digital logic gate and verification of the truth table.

Two Input Nor Gate

To study the NOR digital logic gate and verification of the truth table.

Two Input or Gate

To study the OR digital logic gate and verification of the truth table.

Ultrasonic Transmitter And Receiver Set

This apparatus consists of a self-contained transmitter and receiver operating in the 40 kHz region. The transmitted wave is modulated at a user controlled variable frequency of about 2 kHz and this is detected by the receiver which amplifies the signal and drives a miniature integral loudspeaker. Both transmitter and receiver are contained in separate plastic enclosures measuring 175 x 100 x 40 mm which contain all the electronics and the 9 V batteries. The receiver has front panel 4mm sockets so that the output can be monitored on an oscilloscope for more quantitative measurements. The system is ideal for demonstrating sound waves above the hearing threshold and reflection properties associated with sonar etc. A special feature is the second transducer on the transmitter which can be switched on when required to produce two coherent sources. By moving the receiver along a line parallel to the two sources interference patterns can be dramatically demonstrated simplifying the Young’s slits experiment or enabling it to be demonstrated using waves other than light. Complete with batteries, full instructions and suggestions for use.

Zener Diode Unit

Mounted on transparent covered base for easy view. A diagram and two color coded sockets are provided for connection with any circuit.