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Amazon.com: weideer Input 110V 50/60HZ Output 24V 10VA Power Transformer AC/AC Single Phase Transformer for Lighting Power Supplies, Audio Equipment etc. Various Small Power Supplies K-030 : Electronics
HQRP Tri-Volt (8V 20VA, 16V 30VA or 24V 30VA) Transformer Compatible with Ring, Nest and Standard Doorbells Door Chime Power Supply Adapter Door-Bell 120v-to-8v-16v-24v Replacement, UL Listed - - Amazon.com
Amazon.com: Power Transformer 10W,AC 12V/24V Output Voltage 10W Input 220V 50Hz Voltage Regulator,Low-Frequency Isolated Single EI Power Transformer(12V) : Industrial & Scientific
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Amazon.com: Single Power Transformer AC 12V/24V Output Voltage 5W Input 220V 50Hz Vertical Mount Single-p EI Power Transformer(24V) : Electronics
Amazon.com: Single Power Transformer AC 12V/24V Output Voltage 5W Input 220V 50Hz Vertical Mount Single-p EI Power Transformer(24V) : Electronics
Doorbell Transformer 3TRAN Tri-Volt (8V 10VA, 16V 10VA or 24V 20VA) Hardwired Door Chime Transformer 8-24V - - Amazon.com
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Amazon.com: Single Power Transformer AC 12V/24V Output Voltage 5W Input 220V 50Hz Vertical Mount Single-p EI Power Transformer(24V) : Electronics
Doorbell Transformer 3TRAN Tri-Volt (8V 10VA, 16V 10VA or 24V 20VA) Hardwired Door Chime Transformer 8-24V - - Amazon.com
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Amazon.com: Accessory USA 24V AC/AC Adapter for TDC Power DA-10-24 DA-1024 DA10-24 TDCPOWER DA1024 AUO-48240420 AU0-48240420 AU048240420 Midas Bright Co Ltd 24VAC 0.42A 10VA AC24V Class 2 Transformer Power Supply : Electronics
Doorbell Transformer 3TRAN Tri-Volt (8V 10VA, 16V 10VA or 24V 20VA) Hardwired Door Chime Transformer 8-24V - - Amazon.com