Aid and Trade

Retail Price: $17.99 Wholesale Price:     $13.50 Your Profit: $4.49

To analyze the acoustic properties of a room (usually a living-room), a good pink noise generator together with a spectrum analyzer is indispensable. You also need a microphone with a linear frequency characteristic (from 20 to 20000hz.). Technical specifications: random digital noise. 33 Bit shift register. Clock frequency adjustable between 30khz and 100khz. Output voltage : 150mv rms./ Clock frequency 40khz. Output impedance : 1k ohm. Pink noise filter : -3 db per octave (20 .. 20000Hz.). Power supply : 9 to 12vac, or 12 to 15vdc / 5ma.