SILICON DRIVER Guitar Preamplifier Overdrive Unit with Spring Reverb
#guitar
#preamplifier
#overdrive
#spring reverb
#audio effects
#signal processing
#music
#instrument
#amplifier
#sound
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Guitar Reverb Pedal project
This circuit was inspired by a friend who wanted a reverb for his portable guitar amplifier. I originally tried using NE5532 low noise op-amps for the buffer stages but they were too noisy for the low level circuits so I...
Power Supply For Amplifiers
For the 60W amplifier, a nominal (full load) supply of +/- 35V is required, so a 25-0-25 secondary is ideal - however, see Updates, below. The circuit for the supply is shown below, and uses separate rectifiers, capacitors and fuses...
Phono RIAA Preamplifier
In this circuit exists a second designing proposal of preamplifier RIAA. The first stage uses discernible components and in second exist a opamp. [IC1]. In the negative feedback exist the correction RIAA filters. Certain points need certain discriminators: 1] capacitors...
Phono RIAA Preamplifier
Cleaned Input: The circuit uses one simple, but effective power supply, which is sufficiently shielded by the rest of the circuit, if necessary, with aluminium to prevent noise. The entire circuit can be housed in a small box, from which...
Stereo Electret Mic Preamplifier
This is a simple stereo electret microphone preamplifier circuit. For optimal performance, it is recommended to use solid or film capacitors and metal film resistors. The circuit is based on a single IC, the LM358. It is straightforward, cost-effective, and...
Spice and the art of preamplifier design
One of the main considerations in phono preamplifier design is the choice between active (feedback) and passive equalization. An ideal feedforward preamplifier for a moving magnet cartridge would provide approximately 40 dB of gain before the equalizer (more for low-output...
Line-level preamplifier
Since the volume control is after the gain stage, the preamp can be easily overloaded. I tried to limit the input signal by mounting a 470 k resistor in series with the CD input. A voltage divider is formed by...
Precision polarity switching circuit by conventional elements
The loop gain of the operational amplifier (OP) is primarily influenced by the ratio of the input resistor to the feedback resistor. Consequently, any resistance error can lead to a corresponding gain error, which necessitates the use of high-precision resistors,...
Audio Preamplifier
Design and dimensioning of active low-pass and high-pass filters using Sallen-Key and multiple feedback topologies. Spice netlist generator.
Active low-pass and high-pass filters are essential components in signal processing, allowing specific frequency ranges to pass while attenuating others. The Sallen-Key topology...