The Level Generator LG21 is a handheld battery powered instrument with output frequencies and levels designed for testing sound recording sytems or sound programme circuits. Great care has been taken to achieve easy operation of this instrument. All functions are activated by one button.

The following features are provided:

• 85 hours operation with dry cells
• Battery voltage monitor
• 30 - 20 kHz output frequency
• 16 Spot frequencies in range 40 Hz to 15000 Hz
• -55 dBm to +20 dBm level
• 0, 40 and 600 W output impedances
• Sweep function