Electric Guitar Preamplifier(TL071)
This article briefly describes the Electric Guitar Preamplifier (TL071). This principle is easy to understand, but also very practical. Depth understanding of circuit elements, can be more effective to grasp this principle. Do you know the circuit, for example, can understand and buy these components: TL071 , BC548.
Here is the circuit diagram of a guitar preamplifier that would accept any standard guitar pickup. It is also versatile in that it has two signal outputs. A typical example of using a pick-up attached to a guitar headstock is shown in Fig. 1. The pickup device has a transducer on one end and a jack on the other end. The jack can be plugged into a preamplifier circuit and then to a power amplifier system. The pickup device captures mechanical vibrations, usually from stringed instruments such as guitar or violin, and converts them into an electrical signal, which can then be amplified by an audio amplifier. It is most often mounted on the body of the instrument, but can also be attached to the bridge, neck, pick-guard or headstock.
The first part of this preamplifier circuit shown in Fig. 2 is a single-transistor common-emitter amplifier with degenerative feedback in the emitter and a boot-strapped bias divider to secure optimal input impedance. With the component values shown here, the input impedance is above 50 kilo-ohms and the peak output voltage is about 2VRMS. Master-level-control potentiometer VR1 should be adjusted for minimal distortion. The input from guitar pickup is fed to this preamplifier at J1 terminal. The signal is buffered and processed by the op-amp circuit wired around IC TL071 (IC1). Set the gain using preset VR2. The circuit has a master and a slave control.RCAsocket J2 is the master signal output socket and socket J3 is the slave.
It is much better to take the signal from J2 as the input to the power amplifier system or sound mixer. Output signals from J3 can be used to drive a standard headphone amplifier. Using potentiometer VR3, set the slave output signal level at J3. House the circuit in a metallic case. VR1 and VR3 should preferably be the types with metal enclosures. To prevent hum, ground the case and the enclosures. A well-regulated 9V DC power supply is crucial for this circuit. However, a standard 9V alkaline manganese battery can also be used to power the circuit. Switch S1 is a power on/off switch.
Reprinted Url Of This Article:
- 88-108 MHz VHF FM Band Preamplifier by 2N3819 FETs
- Dynamic Microphone Pre-Amplifier
- 40nVpp Noise, 0.05uV/C Drift, Chopped FET Amplifier
- 10w Mini Audio Amplifier electronic circuit diagram
- 40KHz Limiting Amp
- Magnetic pickup pre-amplifier circuit.
- 1-chip 40 watt amplifier circuit
- Easy 100 Watt Power Amplifier
- AD827AQ, AD827JN double operation amplifier integrated circu
- LA4550 Audio Amplifier
- Asymmetric Pre-amplifier Circuit
- Audio splitter amplifier circuit with TL084
- I.F. Amplifier
- Automatic cooler fan for amplifiers
- NE5532 / A dual low-noise op amp and its pin main characteri
- ECC88-Based Hampton Tube Preamplifier
- LM387 dynamic microphone preamplifier
- 1.3W RF Amplifier circuit diagram
- 300W fm 88 108 MHz amplifier TP9383
- Guitar Pre-Amp with JFET 2N5457
- Wideband VHF preamplifier
- Dynamic audio preamplifier
- 30-Khz Bandwidth High Linearity Opto-Isolated Amplifier
- Fet amplifier with NPD8301