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 5985-00-807-8250
NSN 5915-01-181-5603
NSN 5920-01-172-6358
NSN 5945-01-290-4370
NSN 5985-01-322-9168
NSN 5920-01-181-5248
NSN 5925-00-389-6433
NSN 6685-01-371-3050
NSN 5925-01-241-8464
NSN 2925-00-201-8247
NSN 5895-01-592-4116
NSN 5895-01-094-9650