====== Dual Paddle Electronic Keyer Model 645 ======
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===== Description =====
 The 645 keyer uses transistor switching and is powered by the transceiver.  Adjustable magnetic paddle return.  Paddle force 5 - 50 gms.  Speed 6 - 50 wpm.  Weighting ratio 50 - 150% of classical dit length. Self completing characters.  Dit/dah memories with defeat switches.  Torque drive paddles with 4 ball bearing privots.  Powered through the CORSAIR system.

===== Specifications =====

  ***Keyed Output:** Low voltage positive transistor.
  ***Speed Range:** 6 to 50 WPM
  ***Time Base:** Keyed to start with paddle actuation
  ***Character Generation:** Self-completing dits and dahs
  ***Weighting Ratio Range:** 50% to 150% of classical dit length. Can be pre-set for all speed settings, or be made to vary with speed.
  ***Paddle Actuation Force:** Adjustable from 5 to 50 grams.
  ***Memories:** Dit and Dah, each individually defeatable
  ***Power:** 9-14 VDC
  ***Power:** 220-350mA @ 13.5V 120-200mA @ 9V
  ***Semiconductors:** 5 Integrated circuits, 6 transistors, 3 diodes
  ***Size:** HWD 2-1/2" X 5-1/2" X 8-1/4"
  ***Weight:** 2 3/8 lbs.