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Std EditionC.Moy with chassis

Profile:A small, single-operational-amplifier, AC powered headphone amplifier

License: Public Domain

Published Time:2022-05-29 01:54:19
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Description

A headphone amplifier using a single operational amplifier, named in memory of Chu Moy, whose published design in this style introduced many people to DIY.

 

The design features a dedicated aluminium chassis, a power supply using an external AC "wall wart", and some basic features, including slow-on/fast-off, gain switching, and an on/off button. It is intended as a learning project, and will support any DIP8 dual operational amplifier with the standard pinout.

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Amplifier PCB

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Front panel

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Rear panel

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ID Name Designator Footprint Quantity BOM_Manufacturer Part BOM_Supplier BOM_Supplier Part BOM_Manufacturer
1 470u C1,C2,C3,C4,C5,C6,C7,C8,C13 8X3.5X0.8(DXAXB) 9 710-860020474014 Mouser 860020474014 Wurth Elektronik
2 100n C9,C10,C11,C12 R82DC3100AA50J 4 R82DC3100AA50J Mouser 80-R82DC3100AA50J KEMET
3 RL1N4005-T D1,D2,D3,D4,D9,D10 DO-35_BD2.0-L4.0-P8.00-D0.5-FD 6 RL1N4005-T Mouser 583-RL1N4005-T Rectron
4 TVS D5,D6 DO-15_BD3.4-L6.4-P10.35-D0.8-BI 2 P6KE16CA/B Mouser 603-P6KE16CA/B YAGEO
5 PJ-202A J1 DC POWER JACK PJ-202A 1 PJ-202A Mouser 490-PJ-202A CUI Devices
6 NYS216 J2 AUDIO-TH_PJ-609AE 1 NYS216 Mouser 568-NYS216 Neutrik
7 RCA Jacks J3 PJRAN2X1U01AUX 1 PJRAS2X1S01AUX Mouser 502-PJRAS2X1S01AUX Switchcraft
8 UC2-3NJ K1 RELAY-TH_KEMET_UC2-XXNU 1 UC2-3NJ Mouser 551-UC2-3NJ KEMET
9 Red LED LED1 C5SMF-RJF-CT0W0BB2 1 C5SMF-RJF-CT0W0BB2 Mouser 941-C5SMFRJFCT0W0BB2 Cree LED
10 10k R1,R3 RES-TH_BD2.5-L6.5-P10.50-D0.6 2 SFR2500001002JA500 Mouser 594-SFR2500001002JA5 Vishay
11 2.7k R2,R4,R5,R6 RES-TH_BD2.5-L6.5-P10.50-D0.6 4 SFR25H0002701FR500 Mouser 594-5053HD2K700F Vishay
12 240 R7 RES-TH_BD2.5-L6.5-P10.50-D0.6 1 SFR2500002400FR500 Mouser 594-5043ED240R0F Vishay
13 PBH2UEE SW1,SW2 SW-TH_PBH2UEESNPNAGV1RBLK 2 PBH2UEESNPNAGV1RBLK Mouser 612-PBH2UEESNPNARBLK E-Switch
14 MC7815BTG U2 TO-220-3_L10.0-W4.5-P2.54-T 1 MC7815CTG Mouser 863-MC7815CTG onsemi
15 MC7915 U3 TO-220-3_L10.0-W4.5-P2.54-L 1 MC7915CTG Mouser 863-MC7915CTG onsemi
16 10kΩ VR1 RES-ADJ-TH_RK09712200MT 1 RK09712200HA Mouser 688-RK09712200HA ALPSALPINE(阿尔卑斯阿尔派)
17 NE5532 U1 DIP-8_L9.7-W6.5-P2.54-LS7.6-BL 1 NE5532P Mouser 595-NE5532P Texas Instruments

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