For Researchers · BJT Amplifier
BJT Amplifier for a crystal oscillator
Built for researchers prototyping or validating an idea. Prototype fast, reproduce exactly, and share a citable, interactive version of your model. Simulate a crystal oscillator live below — adjust the inputs and watch it respond, right in your browser.
BJT Common-Emitter AmplifierLive
bias point & gain
Controls
Presets
A transistor amplifies because a tiny base current controls a much larger collector current (Ic = β·Ib). The Q-point on the DC load line sets how much undistorted swing you get; too far and the transistor saturates or cuts off. Educational tool.
Data Inspector
Collector current3.00 mA
V_CE (bias)3.99 V
Voltage gain-4.7 ×
Regionactive ✓
Governing equation
Reading this result: Sitting in the active region with about 4.0 V of V_CE headroom; the gain ≈ -Rc/Re ≈ -4.7×, so shrinking Re trades bias stability for more voltage gain.
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Frequently asked questions
- Is this good for researchers?
- Yes — this version of "BJT Amplifier for a crystal oscillator" is framed for researchers prototyping or validating an idea. Prototype fast, reproduce exactly, and share a citable, interactive version of your model.
- Do I need to install anything?
- No. It runs in any modern browser, free, with no account required.