Rangkaian Pre-Amp Sepul Gitar

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This is a pre-amp guitar circuit suitable for high impedance type electric guitar pickups. The circuit is based on a uA 741 op-amp (IC1). The IC1 is wired as a non-inverting amplifier. Resistor Variable R1 can be used as a volume controller. Resistor Variable R6 can be used as tone controller. The switch S1 is used to produce “brilliant” or “soft” tonal effects.

Skema rangkaian Pre-Amp sepul gitar

Description Op-Amp UA741

The UA741 is a high performance monolithic operational amplifier constructed on a single silicon chip. It is intented for a wide range of analog applications.

* Summing amplifier
* Voltage follower
* Integrator
* Active filter
* Function generator

The high gain and wide range of operating voltages provide superior performances in integrator, summing amplifier and general feedback applications. The internal compensation network (6dB/ octave) insures stability in closed loop circuits.

Data max Ic UA741

* Symbol Parameter UA741M UA741I UA741C Unit
* Supply voltage (VCC) ±22 V
* Differential Input Voltage (Vid ) ±30 V
* Input Voltage (Vi ) ±15 V
* Power Dissipation (Ptot) 500 mW
* Storage Temperature Range (Tstg) -65 to +150 °C.

Rangkaian Efek Gitar Sederhana

type='html'>Rangkaian Efek Gitar

For you who like to assemble their own or following electronic love is one of a series of simple Treble Booster

Treble Booster seldom used by guitarists, and if the only digunakanpun final choice, but there are also still likes the sound of guitar effects "Treble Booster" Screaming Bird Treble Booster was first introduced by the Electro-Harmonix was the era when 70 -- the company is producing guitar effects Screaming Bird Treble Booster. And in this current era of emerging many similar effects in treble booster which sell in the market, either a modified or an almost similar to the original sound.

Skema rangkaian efek gitar

Transistor 2n5133 is difficult to find in the market, these transistors are short data

Various
Si NPN Lo-Pwr BJT
V(BR)CEO (V)=18
V(BR)CBO (V)=20
I(C) Abs.(A) Collector Current=50m
Absolute Max. Power Diss. (W)=200m
I(CBO) Max. (A)=.05u
f(T) Min. (Hz) Transition Freq=40M
Package=TO-106
Military=N

if you are difficult to obtain these transistors use the following, may be an equivalent for this part but Please review the transistor datasheet for more details.
BC183
BC548
2N5172
KT315A
BC168
BC238
2N4967
BC209
2SC536

Rangkaian Gitar Reverb Efek

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Gitar Reverb Efek

This is the circuit of guitar reverb circuit, it is suitable for use as a front-end to a guitar amplifier. This circuit features clipping indicators on the preamp and reverb recovery stages, allowing for the optimal gain settings.
Specifications

Skema rangkain gitar reverb efek

The guitar input stage is a class A amplifier with adjustable bias. A 2N3906 PNP tranistor is used for a low noise design on this stage. The output of the preamp stage is sent to three places: the output mixer amp, the reverb driver amp, and the input clipping detector.

The reverb driver amp consists of a phase inverting push-pull circuit made from dual sections of a 5532 high quality audio op-amp. This provides a voltage swing of approximate twice the supply voltage to the reverb impedance matching transformer, allowing higher power transfer. The 100 ohm resistor is critical for insuring a clean drive signal, without it, the op-amps can saturate when driving the transformer, producing unwanted distortion.

The transformer matches the impedance of the driver amplifer to the reverb driver coil and allows a dual-phase driving signal to power a reverb coil with one side grounded. The transformer is a standard "70 volt" audio line transformer that is often found on PA systems. One reader reported having good results using a Mouser 42TU013 (1K to 8 ohm) transformer. If you can find a reverb tank with a high impedance coil driver, the transformer may be eliminated, the driver coil will require isolation from ground.

The output of the reverb tank is sent to the reverb recovery amp, it is also a 2N3906 class A low noise stage.

The mixer amplifier is a 2N3904 transistor biased for class A operation. It mixes the dry signal from the input preamplifer with the wet signal from the reverb recovery amp through two 10K resistors. The wet signal level is adjusted by a 10K Potentiometer.

The clipping detector stages receive inputs from the guitar preamp and the reverb recovery amp, they act in an identical manner. The 1458 op-amp is wired as a Comparator with a threshold that is near the high side of the allowable voltage swing on the associated 2N3906 preamp stage. If the transistor output exceeds this voltage, the 1458 output turns on, causing the 4011 one-shot pulse stretcher circuit to fire. The one-shot circuit activates the LED, and stays on long enough that even minor clipping on the amplifier causes visible blinking.

The power supply filter involves an RC filter between the DC input power and the bus VF1. VF1 drives the reverb driver, the output amp, and the clipping circuit. VF2 and VF3 are further filtered with their own RC filters, they provide isolated DC for powering the input preamp and reverb recovery amplifier stages.

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