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STD OLDCHEN KT88-K1 2020 Optimised version
License: GPL 3.0
Mode: Editors' pick
Cloned from OLDCHEN KT88-K1 KMH version 2020
- 2
Update time：
2021-11-02 12:09:43
Creation time：
2020-07-06 06:31:45
Description
Schematics from the OldChen Tube amplifier KT88-K1.
DIY Optimised version.
Version 07-2020
Design Drawing
schematic diagram
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PCB
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| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | 330uF 500v | C2 | CAP-TH_BD18.0-P7.50-D1.2-FD | 1 |
| 2 | 68uF | C3 | CAP-TH_BD18.0-P7.50-D1.2-FD | 1 |
| 3 | 47uF 450v | C1 | CAP-TH_BD18.0-P7.50-D1.2-FD | 1 |
| 4 | 6N8S | V2,V4 | OCTAL | 2 |
| 5 | RCA | LEFT,RIGHT | RCA | 2 |
| 6 | 5U4GB | V1 | OKTAL | 1 |
| 7 | 4,7k | R3 | RES-TH_BD5.0-L15.5-P19.50-D0.8 | 1 |
| 8 | 240K | R4 | RES-TH_BD5.0-L15.5-P19.50-D0.8 | 1 |
| 9 | 510 | R6,R18 | R0201 | 2 |
| 10 | 51 | R7,R19 | R0201 | 2 |
| 11 | 470k | R8,R21,R17,R5 | R0201 | 4 |
| 12 | 1M | R9,R20 | R0201 | 2 |
| 13 | 68k | R10,R22 | R0201 | 2 |
| 14 | 1,5M | R12,R24 | R0201 | 2 |
| 15 | 2K | R16,R25 | R0201 | 2 |
| 16 | 820 | R28,R27,R26,R13,R14,R15 | R0201 | 6 |
| 17 | 240k | R11,R23 | R0201 | 2 |
| 18 | 270 | R30,R29 | R0201 | 2 |
| 19 | 0.47uF 800v | C8,C12 | C0201 | 2 |
| 20 | 30uF | C19,C18 | C0201 | 2 |
| 21 | 0.1uF | C10,C5 | C0201 | 2 |
| 22 | 5.6nF | C15,C4 | C0201 | 2 |
| 23 | 12uF | C17,C16 | C0201 | 2 |
| 24 | 6.8uF 400v | C7,C13 | C0201 | 2 |
| 25 | 100uF 63v | C6,C11 | CASE-A_3216 | 2 |
| 26 | 100uF 100v | C14,C9 | CASE-A_3216 | 2 |
| 27 | KT88 | V3 | OKTAL | 1 |
| 28 | KT88-K1 | V5 | OKTAL | 1 |
| 29 | 50K | VR1-L,VR-R | RES-ADJ-TH_3386P | 2 |
| 30 | 5H | L1 | IND-TH_BD4.0-L6.0-P10.00-D0.5 | 1 |
| 31 | - | TR1 | EI48-33F TRANSFORMER | 1 |
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