Dimensions
1 U
Current Draw
27 mA +15V
25 mA -15V
? mA 5V
Price

No info about availability.

Dual Balanced Modulator

The balanced modulator or four quadrant multiplier, is a great classical module. it provides the same functions as those of a ring modulator.

Its main purpose is to generate sounds with a complex overtone content such as bell sounds and other klang tones !
The principle of this circuit is based on a Gilbert cell (see references at the end of this page) contained in the classical LM1496 IC.

Basically, if one feeds the A input with a sinewave with frequency f1, that is sin(2?f1), and the B input with a sinewave with frequenc f2, that is sin(2?f2), one gets at the output the product these two signals, that is sin(2?f1) x sin(2?f2).

Due to trigonomic properties it reads :

sin(2?f1) x sin(2?f2) = sin(2?(f1+f2)) + sin(2?(f1-f2))

in other words the output is a mixture of two sinewaves, one with frequency f1+f2 and the other with frequency f1-f2.


submitted Oct 25th 2012, 21:18 by Squiggletronics | last Change May 20th 2017, 23:17 by rvlt

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Canada

Lower West Side Studio

USA

Synthcube

These merchants probably sell this module. Huh?