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Craftmade T1615 Chime Transformer 15 Watts 16 Volt, Brass (2.25" x 1.9") - Doorbell Transformers - Amazon.com
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Amazon.com: 16-Volt AC Transformer at 40VA, Step Down Transformer 120-Volts AC Input 16-Volts AC Output : 48-1640 : Industrial & Scientific
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