EG-01 Function Generator

Our Function Generator supplies sine, triangle or square function wave outputs through the audio spectrum and beyond. Its output is useful in many laboratory experiments. The Function Generator has three calibrated scales and an internal power amplifier to drive a pair of small loudspeakers for sound interference study. A square wave output is continuously available on the rear panel jacks for testing digital circuits and for frequency monitoring with an EG-15 Frequency Meter.

EK-10 Function Generator

The EK-10 Function Generator plugs directly into the EK-05 Amplifier Power Supply to produce sine, square and triangle waves from 4 to 50,000 Hz. A filtered 60 Hz line sample position is also available. The generator can drive the EG-03 Speaker or the EK-11 Ultrasonic Transducers. The square wave tests electronic circuits. A front panel switch selects the frequency ranges. There are four overlapping ranges: 4 - 50, 40 - 500, 400 - 5,000 and 4,000 - 50,000 Hz.

Required ACCESSORIES

EK-05 Amplifier Power Supply

EG-50 Audio Driver

A sine wave oscillator combines with an audio amplifier through the frequency range of 3 Hz to 10 kHz in three ranges. A four-digit display presents the output frequency. On the low end of the frequency range, the readout is multiplied ten times so that the resolution is 0.1 Hz. This is important for useful accuracy at low frequency. The output waveform is a low-distortion sine wave that will drive such low impedance loads as the EG-52 Electromechanical Driver. A three-turn potentiometer on the front panel sets frequency easily. A pair of jacks on the rear panel provides a square wave output to synchronize an oscilloscope, so students may view the signal easily without jitter on the simplest oscilloscope.

EG-24 Microwave Transmitter

Our microwave source consists of a solid state Gunn diode in a die cast cavity connected to a rectangular horn. The horn has a pattern width of about 15° with vertical polarization. The cavity is tuned to 10.5 GHz and has an output of 8 mW.

You can modulate the amplitude of the transmitter using a pair of banana jacks. The apparatus has a self-contained, 12 Vdc regulated power supply for stable output. The horn radiates with vertical polarization.

EG-07 Ultrasonic Transmitter

The EG-07 Ultrasonic Transmitter generates a 40 kHz sound wave that demonstrates diffraction and interference sound waves. In addition, you can modulate the amplitude to illustrate modulation aspects of signal transmission. The wavelength is roughly equal to the EG-24 Microwave Transmitter so that you can easily show the wave analogy between sound and electromagnetic waves.

The transmitter consists of a stable oscillator driving a piezoelectric transducer, set flush in the end of the case. The calibration frequency is marked on the case and can be measured using an EG-15 Frequency Meter. An EG-01 Function Generator can modulate the signal.