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Ten-Tec Model 1553 T-Kit Budget Electronic Keyer Unbuilt

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MPN:
1553
Condition:
New
Shipping:
$6.00 (Fixed Shipping Cost)
$19.99
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Description

Ten-Tec Model 1553 T-Kit Budget Electronic Keyer Unbuilt

  If several T-Kits are purchased, I will combine the shipping and refund the difference.

 
Build a solid CW keyer with the Ten-Tec Model 1553 T-Kit Budget Electronic Keyer! This unbuilt module board offers adjustable speed, weight (dot/dash ratio), and sidetone pitch in a simple, reliable classic circuit. Perfect for beginners, QRP rigs, or custom homebrew projects. Not iambic but excellent value and easy to integrate. Mount it in a paddle enclosure or inside your transceiver. A practical T-Kit for any CW operator's bench. Complete with parts and instructions. Great starter project or addition to your Ten-Tec collection.
 
 
Information and Specifications
  • Purpose: Simple, reliable electronic keyer for sending Morse code (CW). Ideal for beginners or integrating into QRP rigs, homebrew projects, or older transceivers. Provides clean, adjustable-speed keying with sidetone.
     
  • Features:
    • Speed control.
    • Weight control (rare in basic CMOS keyers — adjusts dot/dash ratio).
    • Sidetone pitch control.
    • Classic circuit design.
  • Design: Compact module board with all parts. Easy to build and mount inside a paddle/enclosure or rig. Not iambic (single-lever style operation). Suggested enclosure available.
  • Power: Standard low-voltage DC typical for T-Kits.
  • Context: Part of Ten-Tec's affordable T-Kit series. A great entry-level project for learning electronic keying. Can pair with Ten-Tec paddles (e.g., Model 607).
     
     
This is a practical, budget-friendly keyer popular with CW enthusiasts and builders.
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Description The KR-20 provides crisp easy-to-copy CW at all speeds without operator fatigue. The paddle assembly incorporates a linear magnetic paddle return. Return force is adjusted by two front panel knobs which move magnetic shorting bars. Each paddle can be set individually to optimum tension. Paddles can be canted for the most comfortable position. Contact spacing is adjusted through holes in the top of the case. Specifications Keyed Time Base: Each character starts immediately when the paddle is actuated. A momentary closure of either paddle is all that is necessary to form a complete character. Weight Ratio: The traditional keyer has a dit-to-dah ratio of 1:3. A space has the same length as a dit. This dit-dah-space ration is fairly smooth at higher speeds, but becomes choppy at speeds below 25 wpm. Accordingly, we have incorporated a character-to-space ration extender to suit individual preference. The monitor, however, has the conventional 1:3 ratio. Monitor: A built-in monitor provides a side tone for feeding headphones or speaker. Volume and frequency of 600-1500 Hz is adjustable to suit the operator's taste. This also can be used for off-the-air code practice. For high impedance receiver input use a 220,000 ohm resistor in series with the monitor lead. Output: The output is handled by a reed relay. Rated at 15 volt-amps, it will key all regularly used keying circuits. The maximum keying voltage is 400 volts. Speed: A single control, tapered to provide linear adjustment, varies the speed from 6-60 words per minute. Electrical: The KR-20 circuitry is completely solide state. It emplys one dual JK integrated circuit, nine silicone transistors, and eight silicon diodes. power source is 105-125 volts at 0.125 amperes, 50-60 Hz. Push-on, push-off switch with pilot light. Line cord: 5'. Mechanical: The chasis is rigid steel. Cycolac® molded side panels have recessed wood grain finish. Nylon paddles are shaped for comfortable operation over long periods. Dimensions: 2-1/2" high x 4-3/4" wide x 8" deep. Weight: 2-1/2 pounds. Description The KR-20 provides crisp easy-to-copy CW at all speeds without operator fatigue. The paddle assembly incorporates a linear magnetic paddle return. Return force is adjusted by two front panel knobs which move magnetic shorting bars. Each paddle can be set individually to optimum tension. Paddles can be canted for the most comfortable position. Contact spacing is adjusted through holes in the top of the case. Specifications Keyed Time Base: Each character starts immediately when the paddle is actuated. A momentary closure of either paddle is all that is necessary to form a complete character. Weight Ratio: The traditional keyer has a dit-to-dah ratio of 1:3. A space has the same length as a dit. This dit-dah-space ration is fairly smooth at higher speeds, but becomes choppy at speeds below 25 wpm. Accordingly, we have incorporated a character-to-space ration extender to suit individual preference. The monitor, however, has the conventional 1:3 ratio. Monitor: A built-in monitor provides a side tone for feeding headphones or speaker. Volume and frequency of 600-1500 Hz is adjustable to suit the operator's taste. This also can be used for off-the-air code practice. For high impedance receiver input use a 220,000 ohm resistor in series with the monitor lead. Output: The output is handled by a reed relay. Rated at 15 volt-amps, it will key all regularly used keying circuits. The maximum keying voltage is 400 volts. Speed: A single control, tapered to provide linear adjustment, varies the speed from 6-60 words per minute. Electrical: The KR-20 circuitry is completely solide state. It emplys one dual JK integrated circuit, nine silicone transistors, and eight silicon diodes. power source is 105-125 volts at 0.125 amperes, 50-60 Hz. Push-on, push-off switch with pilot light. Line cord: 5'. Mechanical: The chasis is rigid steel. Cycolac® molded side panels have recessed wood grain finish. Nylon paddles are shaped for comfortable operation over long periods. Dimensions: 2-1/2" high x 4-3/4" wide x 8" deep. Weight: 2-1/2 pounds.
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Ten-Tec Keyer Paddle Model KR20

Ten-Tec

$19.99
Ten-Tec Keyer Paddle Model KR20 This Keyer was tested and appears to be working but the paddles appear to need some adjustment.  It is a part of a large Ten-Tec collection which has been stored...