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kr20a [2007/04/17 21:15]
n5na
kr20a [2007/05/21 00:44]
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-====== Single Paddle Keyer Model KR20A ====== 
-{{kr20a.jpg?​150|}}{{kr20arear.jpg?​150|}} 
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-===== Description ===== 
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-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. 
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-===== Specifications ===== 
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-  ***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. 
  

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