Single Paddle Electronic Keyer Model 670

Designed specifically for use with the Ten-Tec Century/21 Transceiver. Features self-completing dits and dahs, preset weighting for optimum articulation in the most used speed range, speed control with a range between 6 and 50 words per minute, and an enclosure that matches the transceiver. Powered by the Century/21 power supply, no separate on-off switch is needed for the keyer. Incorporates low voltage positive transistor switching to interface with the Century/21 keying circuit (it will not key transmitters with cathode or grid-block keying).

• Keyer Output Circuit: Positive low voltage transistor switch.
• Speed Range: 6 to 50 WPM.
• Time Base: Keyer starts with paddle actuation.
• Character Generation: Self-completing dits and dahs.
• Weighting: Dit length increased approximately 10% at 20 WPM.
• Power Required: 10 - 14 VDC taken from transceiver supply.
• Paddle: Single type. Molded plastic, with adjustable contact spacing.
• Semiconductors: 1 Integrated Circuit; 5 Transistors; 9 Diodes.
• Finish: Gray front panel, black pebble vinyl top and sides.
• Size: HWD 2" x 4" x 6"
• Weight: 1 lb, 8 oz.