Broadcast Telephone Interface Unit
GKC Research & Development 305 GKC Research & Development Model 305 Communications Amplifier, also known as an Audio Implements Model #305, is designed for IFB and ENG field operations. It integrates with standard telephone lines, satellite phones, or IFB feeds from a remote truck and is compatible with low impedance headsets, lapel mics, and earphones. The unit features two independent output channels for headset and IFB, with 1/4" and 1/8" jacks, and a line input for sending audio on a telephone line from a mixer or tape recorder. It includes a keypad with a 25-number memory dialer, a momentary push-to-talk switch, an open microphone switch, a call light, and a low battery indicator with an audible beep. Power is supplied by a 9V Alkaline battery or a regulated external AC adaptor. The unit has a balanced 600 Ohm input via a female XLR-3 connector for wet or dry input, a separate RJ-11 jack for telephone line input, and a 150 Ohm microphone input. It also features two independent 8 Ohm earphone output channels and a 350mW power output. Sold bid price x 2. - Lot 21485 Dimension: 3.5W 1.5D 5.5H