Endstufe
About the Endstufe PCB
Endstufe is an open source PCB design by FordPrfkt, published on GitHub. It is a 2-layer board measuring 165 × 135 mm, with 59 components from 39 distinct parts.
Other key parts include the ECC82 and ECC83. By type, the board carries 23 resistors, 15 capacitors, 13 connectors, 2 ICs, 2 transformers and 1 relay.
It belongs with the audio designs in this gallery.
From the project
Tube Amplifier using KT88 Tubes based on BlackCat
Main components on the Endstufe
Endstufe bill of materials (BOM)
59 components, 39 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ECC82 | Valve_Noval | U1 |
| 1 | ECC83 | Valve_Noval | U2 |
| 1 | HV In | Molex_Mini-Fit_Jr_5566-06A_2x03_P4.20mm_Vertical | J1 |
| 1 | Relais | Molex_KK-254_AE-6410-02A_1x02_P2.54mm_Vertical | J2 |
| 1 | Audio_In | JST_EH_B3B-EH-A_1x03_P2.50mm_Vertical | J3 |
| 1 | Übertrager | Molex_Mini-Fit_Jr_5566-04A_2x02_P4.20mm_Vertical | J4 |
| 1 | Gegenkopplung | Molex_Mini-Fit_Jr_5566-02A_2x01_P4.20mm_Vertical | J5 |
| 1 | 12V out | Molex_KK-254_AE-6410-02A_1x02_P2.54mm_Vertical | J6 |
| 1 | Conn_01x08 | IDC-Header_2x04_P2.54mm_Vertical | J7 |
| 1 | 12V In | Molex_KK-254_AE-6410-02A_1x02_P2.54mm_Vertical | J8 |
| 1 | VU-Meter | Molex_Mini-Fit_Jr_5566-02A_2x01_P4.20mm_Vertical | J9 |
| 1 | 240V VU | Molex_Mini-Fit_Jr_5566-02A_2x01_P4.20mm_Vertical | J10 |
| 2 | 6V3_AC | Molex_Mini-Fit_Jr_5566-02A_2x01_P4.20mm_Vertical | P1, P2 |
| 1 | 6V3_DC | Molex_Mini-Fit_Jr_5566-02A_2x01_P4.20mm_Vertical | P6 |
| 1 | G5V-1 | Relay_SPDT_Omron_G5V-1 | K2 |
| 2 | 20k | Potentiometer_Vishay_T7-YA_Single_Vertical | RV2, RV5 |
| 2 | KT88 | Valve_Octal | T1, T2 |
| 1 | 1N4001 | D_DO-41_SOD81_P10.16mm_Horizontal | D1 |
| 4 | 68pF / 500V | C_Disc_D11.0mm_W5.0mm_P7.50mm | C1, C5, C9, C13 |
| 4 | 100nF/400V | C_Axial_L19.0mm_D7.5mm_P25.00mm_Horizontal | C2, C4, C8, C11 |
Show 19 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 100nF / 400V | C_Axial_L19.0mm_D7.5mm_P25.00mm_Horizontal | C3, C10 |
| 1 | 33pF / 500V | C_Disc_D11.0mm_W5.0mm_P7.50mm | C6 |
| 1 | 100nF | C_Axial_L19.0mm_D7.5mm_P25.00mm_Horizontal | C7 |
| 1 | 100pF / 500V | C_Disc_D11.0mm_W5.0mm_P7.50mm | C12 |
| 2 | 10µF/400V | CP_Radial_D10.0mm_P5.00mm | C14, C15 |
| 4 | 1M | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R7, R17, R22 |
| 2 | 220k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2, R21 |
| 1 | 82k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R3 |
| 2 | 68k/1W | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R4, R16 |
| 2 | 4R7/6W | R_Axial_DIN0922_L20.0mm_D9.0mm_P25.40mm_Horizontal | R5, R20 |
| 1 | 470k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R6 |
| 2 | 10k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R8, R14 |
| 1 | 220R | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R9 |
| 3 | 100R/6W | R_Axial_DIN0922_L20.0mm_D9.0mm_P25.40mm_Horizontal | R10, R13, R23 |
| 1 | 68k/1W | R_Axial_DIN0207_L6.3mm_D2.5mm_P15.24mm_Horizontal | R11 |
| 1 | 27k/1W | R_Axial_DIN0207_L6.3mm_D2.5mm_P15.24mm_Horizontal | R12 |
| 1 | 470R | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R15 |
| 1 | 100k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R18 |
| 1 | 47k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R19 |
Endstufe design files
The KiCad project lives in the FordPrfkt/KT88-Amp repository on GitHub; these links point at the commit this page was built from.
Endstufe: common questions
How big is the Endstufe PCB?
The Endstufe measures 165 × 135 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Endstufe?
59 components, from 39 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Endstufe design files?
From the FordPrfkt/KT88-Amp repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Endstufe design in my own project?
The repository has no license, so all rights stay with FordPrfkt. Use it as a reference, and ask the author before reusing the design.
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