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Prechamp: 2-Transistor Preamplifier PCB 
PCB for the Prechamp: 2-Transistor Preamplifier.
Double-sided PCB with plated through holes, solder mask and silkscreen overlay.
46 x 36mm.
Cat No SC0874. Price: AUD $4.55-5.00
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yes (7 available). Estimated dispatch time: up to 3 days
Project: The PreChamp 2-Transistor Preamplifier (July 1994)
Feature: How To Do Your Own Loudspeaker Measurements
Project: Infrasound Detector For Low Frequency Measurements
Other items relevant for this project:
Champ: Single Chip Audio Amplifier PCB 
PreChamp 2-transistor preamplifier PCB pattern (PDF download) 
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