Output sound pressure levels: 74, 84, 94, 104, 114 db; actual output frequency: 125.9, 251.2, 501.2, 1000.0, 1995.0, 3981.0 hz porm 3 pct; portable; dust and moisture proof; enclosed in plastic case except for test cavity; 8 hour min. Operation; battery test: internal circuitry check, automatic shutdown when voltage is too low; operating temperature: m10.0/p50.0 deg. C; microphone coupling: transducer cavity accomodates the following 1 in. Microphones (not included): electret condenser pn's gr1961 and 1971; western electric pn 640aa; toko rika pn mr103
An item that, when used with an associated audio frequency signal generator, determines by comparison the output level of an audio frequency voltage. The meter is marked in volts or submultiples thereof. For items utilizing a meter the scale of which is marked in decibels or comparable units, and which do not require a driving oscillator, see meter, audio level. See also meter, modulation and meter, s-units.
Classification: Parts and accessories of articles of schedule b subheading 9030.39
NSN 6685-00-166-0761
NSN 5855-01-562-2957
NSN 5905-01-584-9380
NSN 5925-01-334-8402
NSN 5960-01-266-9520
NSN 6130-01-421-3317
NSN 5920-01-567-9966
NSN 6685-00-422-2990
NSN 5985-01-284-6306
NSN 5920-00-357-0260
NSN 5895-00-245-5828
NSN 6135-00-182-7008