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6L6GC Single-Ended Guitar Amplifier

Type Circuit schematicStandard IEEE Std 315 / ANSI Y32.2Engine schematex-circuitUpdated 7/11/2026
6L6GC Single-Ended Guitar Amplifier
Drawing preview
The scenario

Designing a vintage-style guitar amplifier using common tube types for classic overdrive tones.

What is in this drawing

Read the decisions behind it.

01

Class A single-ended output stage

02

12AX7 preamp for high gain

03

Cathode bias for simplicity

When building a low-power tube amp for practice or recording, or learning vacuum tube circuit design.

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