Difference between revisions of "CW Practice Oscillator Kit"
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RV3 is a 100 Ohm variable resistor that controls the volume. | RV3 is a 100 Ohm variable resistor that controls the volume. | ||
The '''CW key''' is connected to a '''5mm Terminal block''' that is label '''CW Key''' | The '''CW key''' is connected to a '''5mm Terminal block''' that is label '''CW Key''' | ||
| − | This Kit comes with a | + | This Kit comes with a '''55mm 8-ohm 0.5 watt Speaker''' that is connected '''J3 ''' and placed underneath the bottom of the PCB. |
There is another speaker connector that uses a 5mm Terminal block that is labeled '''Speaker''' for larger speakers. | There is another speaker connector that uses a 5mm Terminal block that is labeled '''Speaker''' for larger speakers. | ||
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Revision as of 17:04, 5 March 2024
Morse Code Practice Oscillator Kit
Code Practice Oscillator Kit
www.microrusty.com 2024
Version 1.0
Sachse Amateur Radio Association
Microrusty.com 2024
I decided to make a CW practice board for Morse Code training for my local HAM club. I have donated all 8 boards to the club. It was a simple process to use KiCad 7.0 to design the board. I am not going to explain how to use KiCad in this wiki page since I have other wiki pages explaining how to use KiCad.
This kit uses a NE555 timer SMD SOIC-8 Chip that produces a square wave that can be adjusted between 300Hz and 1KHz The power source is a 9 Volt battery that is connected to J1 via a 9V BATTERY STRAP from Mouser Electronics. This Kit was designed to be adjustable for the user to change to the tone to their preferred listening levels. RV4 is a 200K ohm variable resistor that controls the tone between 300Hz to 1KHz. RV3 is a 100 Ohm variable resistor that controls the volume. The CW key is connected to a 5mm Terminal block that is label CW Key This Kit comes with a 55mm 8-ohm 0.5 watt Speaker that is connected J3 and placed underneath the bottom of the PCB. There is another speaker connector that uses a 5mm Terminal block that is labeled Speaker for larger speakers.
Code Practice Oscillator Schematic
Code Practice Oscillator Schematic Parts
