EF95 6AK5 Battery Operated Tube Headphone Amplifier - 4S 18650 Module

9 months ago

Profile:EF95 6AK5 Hybrid Tube Headphone Amplifier - 4S 18650 Module

Open source license: GPL 3.0

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Description

EF95/6AK5 Tube Headphone Amplifier, it's a hybrid amplifier meaning the final amplification is done using an op-amp. The amplifier consists of a UC3843 100v booster for the tubes, an ABLIC S-8254 4s battery protection system, a LM3914 battery level meter, a TP4056 battery charger and a MH-M18 bluetooth module.

This project is battery module for this Tube Amplifier project.

See other projects for additional schematics.

YouTube Video of project: Part 1 Part 2 Part 3

Blog: https://ratti3.blogspot.com/2020/12/making-battery-operated-ef956ak5-hybrid.html

Documents

EF95 6AK5 Hybrid Tube Headphone Amplifier - 4S 18650 Module

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Calculations

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EF95 6AK5 Hybrid Tube Headphone Amplifier - 4S 18650 Module (5V)

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EF95 6AK5 Hybrid Tube Headphone Amplifier - Rear Panel

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EF95 6AK5 Hybrid Tube Headphone Amplifier - 43 18650 Module (4.6V)

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BOM

ID Name Designator Footprint Quantity BOM_Supplier BOM_Supplier Part
1 LM2596T-ADJ/NOPB U1.LM2596T-ADJ TO-220-5_L10.5-W15.5-P1.70-TL 1 LCSC C21149
2 ZMM22 ZD3,ZD2,ZD1 LL-34_L3.5-W1.5-RD 3 LCSC C8073
3 MIC29300-12WT U3.MIC29300-12WT TO-220-3_L10.0-W4.5-P2.54-T 1 LCSC C14399
4 XH-3A CN1,BMS_HML,CN2,CN3,CN4 CONN-TH_XH-3A 5 LCSC C2316
5 VS-50WQ03FN-M3 SD1 TO-252-2_L6.6-W6.1-P4.57-LS9.9-BR-CW 1 LCSC C222476
6 330uF C2 CAP-TH_BD10.0-P5.00-D1.0-FD 1 RS-Online 315-0732
7 1N4002W D3,D1,D2 SOD-123F_L2.8-W1.8-LS3.7-RD 3 LCSC C169542
8 7447471470 L1 7447471470 1 RS-Online 749-8375
9 VH-2A 12VDCIN CONN-TH_VH3.96-2A 1 LCSC C16728
10 Relpol DPDT 12V 8A RL2,RL1,RL3 RELAY-TH_G2RL-2 3 RS-Online 123-2079
11 PH-2AK CHG_PWR,BAT2,BAT3,BAT4,AMP_SW,BAT1 CONN-TH_PH-2A 6 LCSC C8886
12 22uF C4,C3 CAP-D6.3×F2.5 2 RS-Online 315-0940
13 XH-2A BMS+,BMS-,12VDC_OUT CONN-TH_XH-2A 3 LCSC C20079
14 1.3K R2 R0805 1 LCSC C144581
15 470R R1 R0805 1 LCSC C144560
16 18650 x2 SMT BAT1-2,BAT3-4 18650 DUAL BATTERY HOLDER SMD RATTI3 2 Digi-Key 36-1048P-ND
17 HDR-M-2.54_1x4 J2,J1 HDR-M-2.54_1X4 2 LCSC C124378
18 330uF C1 CAP-TH_BD10.0-P5.00-D1.0-FD 1 LCSC C276508
19 MTP125-1102S1 H1,H2 HDR-TH_2P-P2.54-V 2 LCSC C358684

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