Fase 1This circuit produces an extremely low distortion sine-wave, in spite of the non-linear
devices used for amplitude limiting (D1 and D2). The reason is first that distortion
(harmonics) are fed to the minus input of the opamp with far less loss than to the plus
input, severely attenuating them. Second, a Wien bridge oscillator requires a gain of
exactly 3.00. No more and no less. For lowest distortion, calculate the minimum and
maximum available gain to just above and just below 3.00. In other words, use as little
amplitude control as possible.
Fase 2saldare i componenti.
Prima le resistenze, e lo zoccolo, poi i condensatori.
Inserire il chip nello zoccolo ed alimentare a 9v.