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Amazon.com: Honbay 30pcs 6mm Plastic Cover Trimmer Variable Capacitance 5PF 10PF 20PF 30PF 40PF 60PF Capacitor Kit for Arduino : Industrial & Scientific
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Tegg 18PCS Adjustable Capacitor 5PF 10PF 20PF 30PF 40PF 50PF 60PF 70PF 120PF Trimmer Variable Capacitance Plastic for Arduino: Amazon.com: Industrial & Scientific
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