====== Single Paddle Keyer Model KR20A ======
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===== Description =====

Paddle actuation force is factory adjusted for rhythmic smooth keying.  Contact adjustments on front.  Weighting factor factory set for optimum smoothness and articulation.  Over-ride "straight key" conviently located for emphasis, QRS sending or tune-up.  Reed relay output.  Side-tone generator with adjustable level.  Self-completing characters.  Plug-in circuit board.  For 117 VAC, 50-60 Hz or 6-14 VDC.  Finished in etched aluminum panel and black textured top and sides.

===== Specifications =====

  ***Keyed Output:** Reed Relay: 15 volt-amp contacts, 400 volts, max.
  ***Speed Range:** 6 to 50 WPM.
  ***Time Base:** Keyed to start with paddle actuation.
  ***Character Generation:** Self-completing dits and dahs.
  ***Weighting:** Dit length increased approximately 10% @ 20 WPM. (Can be changed internally.)
  ***Sidetone:** Sawtooth waveform.  App. 1 volt peak-to-peak, open circuit, max.  Frequency app. 500 Hz, internally changeable.  Output impedance 15 ohms.
  ***Power:** 105 - 125 VAC, 50 - 60 Hz or 6 to 14 VDC @ 125 - 190 ma.
  ***Semiconductors:** 1 Integrated Circuit, 9 Transistors, 13 Diodes.
  ***Size:** HWD, 2.5" x 4" x 6"
  ***Weight:** 2.5 lb.