Free Amplifier Circuit Diagram Maker

See it work

Amplifier circuit diagram examples.

Same tool, four requests. Every drawing below is a real render.

What you type

Draw a non-inverting TL072 op-amp amplifier with a 100 mV AC input, 10 kΩ and 90 kΩ gain resistors, ±12 V supplies, 100 nF decoupling capacitors, and a 10 kΩ load.

Then tryChange the feedback resistor to 190 kΩ.Add a 1 µF input coupling capacitor.

Circuit schematic: Non-inverting op-amp amplifier

Circuit schematic · IEEE Std 315 / ANSI Y32.2 · schematex-circuit

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The drawing

What an amplifier circuit diagram is.

An amplifier circuit diagram shows a stage that increases a signal’s voltage, current, or power. It identifies the active device, its supply rails, the bias or feedback network, the input path, and the load.

The topology determines how the stage behaves. A non-inverting op-amp uses negative feedback to set a stable gain, while a common-emitter BJT or tube stage relies on component values to establish its operating point. The schematic makes those choices inspectable.

Standard: IEEE Std 315 / ANSI Y32.2
Engine: schematex-circuit
Editable: Double-click text, drag nodes
Export: SVG · PNG · PDF

Circuit schematic: What an amplifier circuit diagram is

Who uses it

Who uses amplifier circuit diagrams.

Electronics students

Op-amp and BJT gain stages for learning feedback, bias, signal polarity, and decoupling.

Audio builders

Tube preamp stages with coupling capacitors, plate load, cathode bias, and output connection.

Recording and sound projects

Frequency-shaping networks after a microphone preamp, with individual tuned filter branches and an output load.

How it works

How to make an amplifier circuit diagram in three steps.

Describe it

One paragraph is enough to start.

“Draw a non-inverting TL072 op-amp amplifier with a 100 mV AC input, 10 kΩ and 90 kΩ gain resistors, ±12 V supplies, 100 nF decoupling capacitors, and a 10 kΩ load.”

See the drawing

Drawn by the right engine.

Say what changes

Every edit keeps a version.

Change the feedback resistor to 190 kΩ.

V2 · DRAWN FROM V1, NOTHING RETYPED

FAQ

Common questions

What amplifier types can I diagram?

You can describe inverting and non-inverting op-amp stages, BJT common-emitter stages, MOSFET and JFET preamps, tube gain stages, differential amplifiers, and audio power stages.

How is op-amp gain set?

In a feedback amplifier, resistor ratios set the closed-loop gain. A non-inverting stage has ideal gain of one plus the feedback resistor divided by the resistor to ground.

Why are coupling capacitors used in amplifiers?

They pass the AC signal while blocking DC bias from one stage from changing the operating point of the next stage or source.

Why do amplifier supplies need decoupling?

Local capacitors reduce supply noise and provide transient current close to the active device, helping avoid unwanted oscillation and signal interaction.

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