FM stereo multiplex generator


Posted on Feb 18, 2013

The design philosophy for this circuit was centered on replacing all of the op-amp circuitry found in the earlier circuits with discrete transistors and LC filters. The previous circuits had many (high quality) op-amps in series, this resulted in audible distortion, especially on `ess` sounds. The discrete transistor amplification stages in this design produce an audio signal with much lower levels of distortion.


FM stereo multiplex generator
Click here to download the full size of the above Circuit.

To make alignment of the stereo modulator easy, first build this Stereo Test Tone Generator, or generate equivalent waveforms with standard test equipment. The circuit produces a number of waveform combinations that are necessary for adjusting this circui




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Wideband two-pole high-pass filter
Shortwave Converter For Am Car Radios
Battery Indicator based on PIC18f452
Automatic 12V Lead Acid Battery Charger
9 Volt Portable Mixer Circuit
mic circuit
intercom circuit with transistors
555 Timer As A Switch-Mode Power Supply
Harnessing Solar Power with Smart Power-Conversion Techniques
XOR GATE UP DOWN COUNTER
Reverse Engineering a 1.5 inch Photoframe
555 capacitance tester circuit diagram



Top