• Country
• United States of America (USA)

• Manufacturer / Brand
• American Electronics Co.; New York (NY)

• Year
• 1957

• Category
• Morse-Equipment & TTY, RTTY, TDD etc.

• Radiomuseum.org ID
• 133941

• • Brand: Ameco

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

• Number of Tubes
• 2

• Valves / Tubes
• 50C5 35W4

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 117 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 4 inch = 10.2 cm

• Material
• Metal case

• from Radiomuseum.org
• Model: Ameco Code Practice Oscillator CPS-KL CPS-WL CPS-KT CPS-WT - American Electronics Co.; New

• Shape
• Tablemodel, with any shape - general.

• Notes

• The Ameco Code Practice Oscillator was avallable either as a kit or wired, and either with or without tubes.   CPS-KL is the kit form less tubes at $11.95. CPS-WL is the wired form less tubes at $13.15. CPS-KT is the kit form with tubes at $13.75. CPS-WT is the wired form with tubes at $14.95. 

  Screw terminals for phones and key on rear side.

  CAUTION: As wired, the device has line-derived high voltage on the key, thus is dangerous without modification.

  The CAUTION warning applies to the gray "1957" version of the device.  Although the model numbers remain the same, the later (black color) version has a different circuit design for safety. That design is simply a free-running oscillator in which they code key is wired in series with the speaker and is therefore isolated from the power-line-derived B plus voltage.  The older (1957) version(s) can be modified to conform to the later and safer version of the schematic as uploaded to Rmorg.

• Mentioned in
• Popular Electronics (magazine), June 1957

• Author
• Model page created by a member from A. See "Data change" for further contributors.

• Other Models

• Here you find 21 models, 20 with images and 4 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from American Electronics Co.; New York (NY)