• Country
• United States of America (USA)

• Manufacturer / Brand
• Drake, R.L. Miamisburg, Ohio

• Year
• 1982 ??

• Category
• Amateur Equipment (Other, but not Key)

• Radiomuseum.org ID
• 92351

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Transistors
• 6

• Semiconductors
• 2N4402 MPS-H20 2N3904 2N3904 2N3904 2N3904 MC14013 MC14001 MC14071 MC14011 H11D2

• Wave bands
• - without

• Power type and voltage
• Batteries / addl. power jack / 9; 7-16 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 4.4 cm = 1.7 inch

• Power out
• 0.1 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: Electronic Keyer CW-75 - Drake, R.L. Miamisburg, Ohio

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 159 x 54 x 173 mm / 6.3 x 2.1 x 6.8 inch

• Notes

• Electronic keyer matching TR-5 / TR-7 and other transceivers.

  Drake Electronic Keyer CW75

  The CW75 Keyer can be used tp provide a keying function for virtually any type of transmitter (cathode keying, grid block keying, solid state, etc.), as well as a code practice keyer. The styling matches that of the Drake 7-line. A sidetone oscillator is provided with an internally adjustable tone control. The CW75 may be used with a straight key, semi-automatic key (bug) or squeeze paddle. When using a squeeze paddle the keyer provides iambic operation.

  Specifications:
  Keying: Reliable optically coupled solid state (*300 V, 100 mA max.)
  Supply: 7–16 VDC, 50 mA @ Maximum Output (TUNE) @ 13 VDC
              Optional Internal 9 Volt Supply (Battery)
  Speed: 5–50 Words per Minute
  Side Tone Output: Level: 20 mW @ 13 VDC
  Frequency: Adjustable Internal (700-1100 Hz)

• Net weight (2.2 lb = 1 kg)
• 0.6 kg / 1 lb 5.1 oz (1.322 lb)

• Source of data
• -- Original prospect or advert

• Mentioned in
• -- Original-techn. papers.

• Author
• Model page created by Martin Bösch. See "Data change" for further contributors.

• Other Models

• Here you find 154 models, 99 with images and 61 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Drake, R.L. Miamisburg, Ohio