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Speaker Protector and Muting Module PCB pattern (PDF download) [01207071] PDF with the PCB design for the Speaker Protector and Muting Module (single-sided). Can be used for both the original design (July 2007) and the updated version (October 2011). Cat No SC0986. Price: Free Files: Speaker Protector (01207071).pdf (18.7KB) 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]) Project: Build A Loudspeaker Protector (October 2011 [print issue] [online issue]) Other items relevant to these projects: 20W Class-A Amp: 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) 20W Class A Low Noise Stereo Preamplifier/Remote Volume Control PCB pattern (PDF download) [01208071] (Free) 20W Class A Amplifier Module PCB patterns (PDF download) [01105071/2] (Free) 20W Class A Amplifier Power Supply PCB pattern (PDF download) [01105073] (Free)