Stylus organ

Posted on Jan 27, 2013

IC2 is an audio frequency oscillator. Its frequency is primarily controlled by the resistance between pins 2 and 7. RV4-11 eontrol the oscillator frequency and by touching a stylus (connected via limiting resistor R5 to pin 2) to each preset, different notes can be played. ICl is a low frequency oscillator (approximately 3-10Hz), the frequency of which is variable by RVl

Stylus organ
Click here to download the full size of the above Circuit.

The output of this oscillator is connected through depth control RV2 and limiting resistor R3 to the voltage control input of the audio frequency oscillator. Thus a vibrato effect occurs.

Leave Comment

characters left:

New Circuits



Popular Circuits

3-5Volt FM transmitter circuit use two BC547
Dynamic to electret microphone circuit
Biasing Op-Amps into Class A
Auto 12V Fan Controller
Schematic Diagram VHF UHF Low-Noise amplifier circuit
arduino uno schematic
lm12 audio amplifier circuit diagram
bjt Low voltage/current power supply for wide range of inputs
TC1043C Voltage-to-Frequency / Frequency-to-Voltage Converters
Simple Electronic bell circuit using transistors
LED TesterCircuit
Enclosure for the Magnetometer v2.0
A simple grid control circuit
Electronic Watchdog
2 -Y- connection automatic three-speed motor acceleration control circuit