903 WHITE SOUND SOURCE:
Generates white noise over a 1-20,000 cps bandwidth.
$60.00
From "Ultra-Short Form Catalog of Electronic Music Composition Instruments", R.A. Moog Company, October, 1965.
903A RANDOM SIGNAL GENERATOR:
Generates two kinds of random voltage waveforms (white and pink noise) simultaneously.
$125.00
From "Moog Catalog 1971", R.A. Moog Inc, March, 1971.