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Ten-Tec Model 1551 Speech Processor Kit with Optional 1000-A Enclosure Unbuilt Kit

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MPN:
1551
Condition:
New
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$8.00 (Fixed Shipping Cost)
  • Ten-Tec Model 1551 Speech Processor Kit with Optional 1000-A Enclosure Unbuilt Kit
  • Ten-Tec Model 1551 Speech Processor Kit with Optional 1000-A Enclosure Unbuilt Kit
  • Ten-Tec Model 1551 Speech Processor Kit with Optional 1000-A Enclosure Unbuilt Kit
  • Ten-Tec Model 1551 Speech Processor Kit with Optional 1000-A Enclosure Unbuilt Kit
  • Ten-Tec Model 1551 Speech Processor Kit with Optional 1000-A Enclosure Unbuilt Kit
  • Ten-Tec Model 1551 Speech Processor Kit with Optional 1000-A Enclosure Unbuilt Kit
$44.99
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Description

Ten-Tec Model 1551 Speech Processor Kit with Optional 1000-A Enclosure Unbuilt Kit

The Kit is complete with all parts and cabinet, all in the original box.

Please see the pictures for specifications and information from the Construction book which is included.

I am selling this item for a friend who collected Ten-Tec gear for many years,

it is sold as is, as described and all sales of unbuilt kits are final.

Description

While speech processing IS a standard feature of today's SSB transceivers, there's plenty of nice equipment at hamfest flea-markets which can benefit significantly from the addition of this proven speech processor circuit used in all of today's TEN-TEC transceivers. If there's room, build it into that older rig. Or, design it into that audio console you've been planning, or just use a neat TEN-TEC box!

 

The Ten-Tec Model 1551 is a compact microphone audio speech processor kit from the popular T-Kit series—designed to boost SSB transmit audio punch and average power, identical to the processor circuits in premium Ten-Tec transceivers like the Omni VI and Paragon II.Key Features & Specs
  • Function: Provides RF-level clipping and compression for cleaner, louder SSB signals without overdriving—great for QRP, older rigs without built-in processing, or improving punch on any HF transceiver.
  • Controls: Input gain, output level, and clipping threshold for easy adjustment.
  • Design: Simple board with high-quality components; microphone input/output (standard connectors); powered by 12–15 VDC; can be used standalone or integrated into custom setups.
  • Build: Very straightforward "mini-kit" (mostly board-mounted parts, clear manual)—many builders finish in a few hours; optional 1000-A Enclosure (Ten-Tec's custom-fitted metal box) for a professional look.
Praised in ham reviews and articles for dramatically improving SSB audio clarity and "talk power" on rigs like the Argonaut 509 or QRP setups—users often report noticeable signal strength gains without distortion.
Ten-Tec T-Kits are high-quality amateur radio kits produced by Ten-Tec, an iconic American company founded in 1968 (originally as Tennessee Technology) in Sevierville, Tennessee. Known for manufacturing reliable HF transceivers, receivers, and accessories, Ten-Tec became legendary in the ham radio community for its innovative designs and excellent performance.The T-Kit line (introduced in the 1990s and continued into the 2000s) offered affordable, beginner-friendly projects for hams and experimenters. These kits focused on QRP (low-power) equipment, including single-band CW transceivers (like the popular 1300 series for 20m, 30m, 40m, etc., with models such as 1315, 1320, 1330, 1340), regenerative shortwave receivers (e.g., 1253, 1254), direct-conversion receivers, antenna tuners, transverters, wattmeters, and modular boards for custom builds.They were praised for being easy to assemble, well-engineered with high-quality components, and delivering solid performance once built—often outperforming commercial gear in their price range. Many hams built their first radios with T-Kits, and they remain sought-after by collectors and builders today.Your unbuilt T-Kits are rare collectibles, offering a fun project or a piece of ham radio history!
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