Stereo Preamplifier

PeraZver·80W-Audio-Amplifier·Preamp/Preamp.kicad_pcb

Stereo Preamplifier PCB layout, top view — open source board by PeraZver

About the Stereo Preamplifier PCB

Stereo Preamplifier is an open source PCB design by PeraZver, published on GitHub. It is a 2-layer board measuring 83 × 54 mm, with 51 components from 27 distinct parts.

Other key parts include the L7815, L7915 and OPA2134. By type, the board carries 21 resistors, 14 capacitors, 11 connectors and 4 ICs.

It belongs with the audio designs in this gallery.

From the project

From the book High Power Audio Amplifier Construction Manual Overal THD is approximately 0.001 %. 80 W RMS into the 8 Ohm speaker.

Stereo Preamplifier, from the project README — From the project README

Main components on the Stereo Preamplifier

L7815 L7915 OPA2134

Stereo Preamplifier bill of materials (BOM)

51 components, 27 distinct parts.

Qty	Part	Footprint	Refs
1	L7815	TO-220-3_Vertical	U1
1	L7915	TO-220-3_Vertical	U2
2	OPA2134	DIP-8_W7.62mm	U3, U4
1	+20	Pin_d1.0mm_L10.0mm	J1
1	GND	Pin_d1.0mm_L10.0mm	J2
1	-20	Pin_d1.0mm_L10.0mm	J3
1	L In+	Pin_d1.0mm_L10.0mm	J4
1	L In-	Pin_d1.0mm_L10.0mm	J5
1	R In+	Pin_d1.0mm_L10.0mm	J6
1	R In-	Pin_d1.0mm_L10.0mm	J7
1	L Out+	216843-1	J8
1	L Out-	216843-1	J9
1	R Out+	216843-1	J10
1	R Out-	216843-1	J11
1	10k	Potentiometer_Trimmer_Piher_PT-10h2.5_Vertical_Px2.5mm_Py5.0mm	RV1
1	10u	Potentiometer_Piher_PT-10-H05_Horizontal	C1
1	10u	CP_Radial_Tantal_D5.0mm_P5.00mm	C2
6	1u	C_Rect_L10.3mm_W5.0mm_P7.50mm_MKS4	C3, C4, C9, C10, C11, C12
2	100n	C_Rect_L10.0mm_W2.5mm_P7.50mm_MKS4	C5, C6
4	1u	C_Disc_D5.1mm_W3.2mm_P5.00mm	C7, C8, C13, C14

Show 7 more

Qty	Part	Footprint	Refs
4	100k	R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal	R1, R2, R20, R21
2	1k	R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal	R3, R5
8	10k	R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal	R4, R6, R7, R8, R14, R15, R16, R17
2	1k5	R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal	R9, R10
1	100k	Potentiometer_Piher_PC-16_Dual_Horizontal	R11
2	15k	R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal	R12, R13
2	100R	R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal	R18, R19

Stereo Preamplifier design files

The KiCad project lives in the PeraZver/80W-Audio-Amplifier repository on GitHub; these links point at the commit this page was built from.

LayoutPreamp/Preamp.kicad_pcb

Stereo Preamplifier: common questions

How big is the Stereo Preamplifier PCB?

The Stereo Preamplifier measures 83 × 54 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Stereo Preamplifier?

51 components, from 27 distinct parts. The full bill of materials is listed on this page.

Where can I download the Stereo Preamplifier design files?

From the PeraZver/80W-Audio-Amplifier repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Stereo Preamplifier design in my own project?

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

More boards in 80W-Audio-Amplifier

Similar boards