Advance Electronic Industries

SALIENT FEATURES :

ü Completely self contained stand - alone unit.

ü Designed for educational & experimenting purpose.

ü Demonstrates the principle & working of various loudspeakers.

ü Test points at various stages in the circuit to observe and record the waveforms and voltages.

ü Housed in an elegant metal cabinet with a well spread intelligently designed layout on the front panel.

ü Exhaustive and skill oriented comprehensive instructing manual complete with theory and operating details.

Technical Specifications

The complete system consists of :

1.Three different loudspeakers.

2.One Microphone to receive the Audio Signal as receiver for the loudspeaker under test.

3.Amplifier-Low noise, variable gain dedicated amplifier.

4.Motorised directional plate with Auto and Manual mode.

5.Measuring Tape.

Facility For Finding :

ü .Frequency Response with calculation of gain in dB for various loudspeakers various distance & various inputs and plotting of graph.

ü .Directional Response with calculation of gain in dB for various loudspeakers various distance & various inputs and plotting of polar graph.

SALIENT FEATURES :

* Completely self contained stand – alone unit.

* Designed for educational & experimenting purpose.

* Demonstrates the principle & working of various microphones.

* Test points at various stages in the circuit to observe and record the waveforms and voltages.

* Housed in an elegant metal cabinet with a well spread intelligently designed circuit layout on the front panel.

* Strongly supported by a comprehensive instruction manual complete with theory and operation details.

Technical Specifications :

The complete system consists of :

* Three different microphones.

* One Loudspeaker to transmit the Audio Signal as Source for the Microphone under test.

* Amplifier – Low noise, variable gain dedicated amplifier.

* Motorised directional plate with auto and manual mode.

* Measuring Tape.

Facility for Finding :

* Frequency Response with calculation of gain in dB for various microphones various distance & various inputs and plotting of graph.

* Directional Response with calculation of gain in dB for various microphones various distance & various inputs and plotting of polar graph.

SALIENT FEATURES :

* Completely self – contained stand – alone unit.

* Demonstrates the principle of Phase Shift Keyed Modulation.

* Supply required 230V, 50Hz AC.

* Built – in IC based DC regulated power supply with short circuit protection and LED indication for supply “ON”.

* IC based modulating circuit.

* Modulating Circuit consists of a Phase Shifter Amplifier and Multiplexer.

* Observation of phase shift keyed modulated waveform.

* Test points are provided at various stages in the circuit to observe the waveforms and voltages.

* Housed in an elegant cabinet with a well spread intelligently designed circuit layout on the front panel.

* Strongly supported by a comprehensive instruction manual completely with theory and operation details.

SALIENT FEATURES :

* Completely self – contained stand – alone unit.

* Demonstrates the principle of pulse amplitude modulation.

* Supply required 230V, 50Hz AC.

* Built – in IC based DC regulated power supply with short circuit protection and LED indication for supply “ON”.

* Built – in IC based modulating circuit.

* Modulating signal and carrier signal to be provided externally for which connecting facility provided on board.

* Observation of pulse amplitude modulated waveform.

* Test points are provided at various stages in the circuit to observe the waveforms and voltages.

* Housed in an elegant cabinet with a well spread intelligently designed circuit layout on the front panel.

* Strongly supported by a comprehensive instruction manual completely with theory and operation details.

SALIENT FEATURES :

* It is a completely self – contained unit.

* The complete circuit of a P.A amplifier is printed on a single PCB of size 410 mm x 320 mm.

* All parts is soldered on single pin tags on the PCB for easy replacement and fault creation.

* Fault creating facilities is provided by removing jumpers and / or by changing parts.

* Explanation, observation, alignment and adjustment of internal and external control is possible.

* Easy identification of components and measurement of voltage / waveforms is possible at a glance.

* Detailed instruction manual is provided.

Technical Specifications

Power Supply : 220V AC 50 Hz.

Audio Power Supply : 30 Watts PMPO maximum.

Inputs : 3 mic input.

Provision : 1 aux input.

1 phono input.

Controls : a. Separate volume controls for mic 1, 2 & 3 ( with aux & phono )

b. Tone control.

Output Speaker Connections : 4 Ohms, 8 Ohms, 16 Ohms.

AC / DC Battery

Selector Switch : Provided.

Frequency LED : For supply indication.

Sensitivity : 5 mV for mic.

100 mV for phono / tape.

Distortion : 5 % to 10 %

Technical Specifications

1. Working Principle : Mixer.

2. FrequencyRange : 520 KHz – 1620 KHz.

3. Output Frequency : 455 KHz.

4. Local Oscillator Frequency : 975 KHz – 2075 KHz.

5. Circuit : Using transistor.

6. Input : 1. By connecting built in ferroceptor antenna.

2. By connecting an RF signal from an RF generator.

7. Operating Voltage : 230V 10 %, 50 Hz AC.