The model 307B external communications speaker is designed for use with Ten-Tec radio receivers and transceivers. 307B features a black cabinet as used for the Orion, Orion II, Omni-VII, Argonaut V, and newer Jupiter HF transceivers and the RX-350D receiver. The cabinet and speaker are suitable for every possible communcation need, from clean CW operation to well-rounded AM receive audio. The speaker response is 100 to 18000 Hz, 4 ohms impedance, 5 watts power. Speaker measures 4 inches diameter. The negative line of the speaker is isolated from chassis ground.
The chassis of the speaker cabinet is painted steel. Tilt-up bail between front feet allows elevating the front of chassis from desk level. Front feet are molded cycolac, rear feet are stick-on rubber. Weight 6 lbs. Size of chassis is HWD 5” x 6.875” x 11.75”. Height measurement does not include feet, depth measurement does not include rear panel connectors.
On the rear of the 307 speaker chassis are two quick-release, spring loaded terminals, similar to those used in typical home stereo speaker applications. Ten-Tec provides a pre-wired cable with 1/4” phone jack on one end, bare wire to attach to spring loaded terminals on the speaker on the other.
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