This multiple tone generator uses four 28 V DC outputs to select between 15 different frequencies ranging from 1 KHz to 20 KHz. It employs a fixed rise/fall so there is no speaker click or pop when turning on the tones. The volume of the tones may be adjusted using a screwdriver. This may be used with speakers (ENV-224AM, ENV-224BM, ENV-224CM, ENV-224DM, or ENV-324W) depending on the application and frequencies desired. If greater control over the frequencies, rise/fall time, and volume is desired, refer to the programmable audio generator (ANL-926).

Dimensions:
2.4" W x 2.27" L x 1.0" H
(6.1 cm x 5.8 cm x 2.5 cm)