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Best Choice TORTECH 
300VA Isolation Transformer YDuupxe 
YDuupxe 10pcs 1:1 600 : 600 Ohm EI14 Audio Coupling Isolation Transformer for Transform Voltage Load Impedance ✔【10pcs】10x EI14 Audio , large quantity, easy to use.Redback 
Unbalanced Stereo Line Isolation Transformer RCA-RCA Best Value VGOL 
VGOL 8Pcs EI14 Audio Coupling Isolation Transformer 600:600 Ohms 1:1 4 Pin High Efficiency Audio Isolation Transformers This is a special transformer mainly used for the transmission and isolation of audio signals. Not only can it pass audiVOANZO 
VOANZO EI14 Audio Transformer 600:600 Ohm 1:1 Isolation Transformer Pack of 10 This isolation transformer is suitable for radio communication, broadcasting, audio, automation, power components, etc.TORTECH 
600VA Isolation Transformer Product Type: Power Supplies Or ProtectionPlyisty 
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LED Transformer 24V AC Input 85-260V, 50/60Hz, constant voltage DC output: 24V, output currenGeeekPi GeeekPi USB Isolator Module ADUM3160 Digital Isolation USB to USB Voltage Isolator Board Protection (5KV ESD MAX) with O 【Only USB1.0/USB 1.1/USB2.0 Full-Speed compatible】Please Note:USB 2.0 High Speed Devices are Not SupportedYDuupxe YDuupxe AUDIO2RIG USB Sound Card Connector Isolator with Sound Transformer and Optical Isolation for Computer to Radio C [Versatile Compatibility] This usb isolator module works seamlessly with most popular radio equipment and supports ptt c