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Tag: circuit

Guitar Noise Gate

While playing the guitar many times there is a problem that unwanted noise can appear. Hence the need for a guitar noise gate.  It happened specifically to a high-gain circuit is very sensitive to the surrounding radio signal.

Guitar noise gate circuit
Noise gate schematic
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DC to DC converter

This circuit is the old and well-known NE555 integrated circuits based. DC to DC circuit is not complicated, little parts, and doing pretty much stable voltage. It produces with the 12V DC voltage of 30V to voltage. The NE555 constant operating frequency is set. The 3 pin voltage convert of 30V. D1- D4 and C1-C5 voltage tripler circuit.  DC to DC converter is use in similar tube circuit.

DC to DC converter schematic, used 555 ic.
DC to Dc converter schematic
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Op amp inverting amplifier

This is an inverting op amp circuit. Proven operating op amp circuit that uses the old and popular LM741 (at Texas Instruments products, datapage ) circuit.  Op amp inverting amplifier circuit is very simple, some spare part.

Op amp inverting amplifier
Op amp inverting amplifier

The prototype circuit:

Op amp inverting amplifier
Op amp inverting amplifier prototype circuit
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3 Transistor Fuzz

Three transistor fuzz effect, strong sounding. Based on the famous Fuzz Face circuit, supplement with a preamplifier. Tried operating circuit!

fuzz guitar pedal effect
3 Transistor Fuzz guitar effect

Q1 2N5088 pre-amplifier transistor can be replaced 2N2222, 2N3904, BC547 type. If you need tougher sound, the Germanium Fuzz Face for you.

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12AU7 Tube tremolo

This is a Hybrid tube tremolo circuit. It is interesting that a low frequency oscillator (LFO) in electron tube is not resolved, we do circuit transistor for low frequency.

Tube tremolo circuit
Tremolo schematic

BC547 transistors and used ECC82 or 12AU7, so the circuit operates at low voltage. Tube circuit provides classic, warm sine wave tremolo tones.

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