{"product_id":"lectrosonics-iso9volth","title":"Lectrosonics ISO9VOLTH Isolated Battery Eliminator for H-Style Plug-On TX","description":"\u003cp\u003eThe Lectrosonics ISO9VOLTH is an isolated battery eliminator built for field production engineers and wireless technicians who need to run UH-type plug-on transmitters from an external power source inside a bag system. It slots into the transmitter's 9-volt battery compartment and uses the included H-style modified door, which features a machined hole that exposes the DC input connector while still allowing normal dry-cell battery operation when needed.\u003c\/p\u003e\u003cp\u003eThe core engineering challenge in bag systems is ground loops. When a mixer, receivers, and transmitters share a common battery rail, the shared ground path introduces high-frequency noise into the audio chain. The ISO9VOLTH addresses this directly by isolating the power ground from the audio ground inside the transmitter. Incoming DC passes through a low-dropout 12-volt pre-regulator, then into a DC-to-DC converter running at 800kHz, through a transformer, rectified, and finally regulated down to a clean 9-volt output at the battery contacts. The result is a floating supply that breaks the ground loop at the source.\u003c\/p\u003e\u003cp\u003eReverse-polarity protection and an internal fuse guard against wiring mistakes in fast-moving location sound environments. This unit has been tested exclusively with compatible Lectrosonics transmitter types and is the correct choice when bag-powering UH-style plug-on transmitters where audio integrity under shared-rail DC power is non-negotiable.\u003c\/p\u003e","brand":"Lectrosonics, Inc.","offers":[{"title":"Default Title","offer_id":52446735270072,"sku":"70214","price":222.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0871\/7382\/4696\/files\/70214_Lectrosonics-ISO9VOLTH-Isolated-Battery-Eliminator-for-H-Style-Plug-On-TX_ALT01sqr.jpg?v=1791492180","url":"https:\/\/soundpro.com\/products\/lectrosonics-iso9volth","provider":"SoundPro","version":"1.0","type":"link"}