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20W Class A Amplifier Module PCB patterns (PDF download) [01105071/2] PDFs with the amplifier module PCB designs for the 20W Class A Amplifier (single-sided). The two channels use mirror image modules so there are two PCB patterns. 01105071 is for the left module and 01105072 for the right. Cat No SC1472. Price: Free Files: Class-A Amplifier Left Module (01105071).pdf (22.3KB) Class-A Amplifier Right Module (01105072).pdf (22.6KB) Related to: Project: A 20W Class-A Amplifier Module (May 2007 [print issue] [online issue]) Project: 20W Class-A Amplifier Module; Pt.2 (June 2007 [print issue] [online issue]) Project: 20W Class-A Amplifier Module; Pt.3 (July 2007 [print issue] [online issue]) Project: 20W Class-A Amplifier Module; Pt.4 (August 2007 [print issue] [online issue]) Project: Building The 20W Stereo Class-A Amplifier; Pt.5 (September 2007 [print issue] [online issue]) Other items relevant to these projects: Preamp & Remote Volume Control PCB for the Ultra-LD Mk3 [01111111] ($30.00) Speaker Protection and Muting Module PCB [01207071] ($17.50) 20W Class-A Amplifier Power Supply PCB [01105074] ($20.00) 20W Class-A Amplifier Module PCB, left channel [01105071] ($15.00) 20W Class-A Amplifier Module PCB, right channel [01105072] ($15.00) PIC16F88-I/P programmed for the Low Noise Stereo Preamplifier with Remote Volume Control ($10.00) PIC16F88 firmware and source code for the Low Noise Preamplifier with Remote Volume Control (Free) Speaker Protector and Muting Module PCB pattern (PDF download) [01207071] (Free) 20W Class A Low Noise Stereo Preamplifier/Remote Volume Control PCB pattern (PDF download) [01208071] (Free) 20W Class A Amplifier Power Supply PCB pattern (PDF download) [01105073] (Free)