HardLabs

Efactory

vlakir·efactory·data/templates/tube-pp-amp/{{PROJECT_NAME}}.kicad_sch

This repository ships a schematic but no board layout.

About the Efactory PCB

Efactory is an open source PCB design by vlakir, published on GitHub. It is a board, with 22 components from 14 distinct parts.

By type, the board carries 10 resistors, 5 crystals and 5 capacitors.

It belongs with the test & measurement designs in this gallery.

From the project

Система сквозного проектирования РЭА с использованием ИИ

Двухкаскадный push-pull power amp с long-tail-pair (LTP) phase splitter: обе половины 6Н2П (Valve:ECC83 unit 1 + unit 2), shared cathode через Rtail=4.7 kΩ → пара 6П14П (Valve:EL84) в push-pull с per-tube auto-bias (Rk=270 Ω ‖ Ck=220 µF) → выходной трансформатор OPTPP6K68 (6.6 kΩ p-p : 8 Ω, center-tapped primary) → 8 Ω load. Open-loop (без global NFB) — NFB вариант остаётся в BACKLOG отдельной задачей по аналогии с se-amp → nfb-se-amp.

Efactory bill of materials (BOM)

22 components, 14 distinct parts.

QtyPartRefs
2
6N2P
X1, X2
2
6P14P
X3, X4
1
OPT_PP_6K6_8
X5
1
300
V1
1
VSIN
V2
1
100n
C1
2
47n
C2, C3
2
220u
C4, C5
2
1Meg
R1, R2
2
47k
R3, R4
1
4.7k
R5
2
470k
R6, R8
2
270
R7, R9
1
8
R10

Efactory design files

The KiCad project lives in the vlakir/efactory repository on GitHub; these links point at the commit this page was built from.

Efactory: common questions

How many components are on the Efactory?

22 components, from 14 distinct parts. The full bill of materials is listed on this page.

Where can I download the Efactory design files?

From the vlakir/efactory repository on GitHub, which has the schematic; the links under Design files point to each one.

Can I use the Efactory design in my own project?

The repository has no license, so all rights stay with vlakir. Use it as a reference, and ask the author before reusing the design.

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