Difference between revisions of "CW Practice Oscillator Kit"
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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.<br> | 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.<br> | ||
This project uses a '''NE555 timer SMD SOIC-8 Chip''' that produces a square wave that can be adjusted between '''300Hz''' and '''1KHz''' | This project 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 | + | 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. | 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. | RV4 is a 200K ohm variable resistor that controls the tone between 300Hz to 1KHz. | ||
Revision as of 04:23, 23 February 2024
Morse Code Practice Oscillator
Microrusty.com 2024
I decided to make a CW practice board for Morse Code training for my local HAM club. I have donated all 10 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 project 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 Speaker that is connected LS2 (Version2 Bd) - J3 (Version1 Bd) and placed underneath the bottom of the PCB. There is another speaker connector that uses a 5mm Terminal block with the label Speaker for larger speakers.
Code Practice Oscillator Schematic
Code Practice Oscillator Schematic Parts
