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 5930-01-406-0285
NSN 5998-01-542-1282
NSN 5930-01-612-5238
NSN 2925-01-513-2073
NSN 5996-00-480-3258
NSN 6150-01-561-7401
NSN 5999-00-511-9808
NSN 5920-01-481-0421
NSN 6130-01-085-6095
NSN 6685-00-318-7766
NSN 5950-00-274-9811
NSN 2925-00-436-3527