This site contains all the information one would need to build a 150 watt 40 meter crystal transmitter.  This circuit was built based on information provided kindly by Ken's (W7EKB) website.  On that site you will find the basic schematic, the RCA Ham Tips, and examples of W7QQQ's transmitter.  My goal was to create a 1 tube 813 transmitter.  I did it and it works great!  Below I  have links to my design and plenty of pictures to get ideas from.  I also included a links page that may be helpful for you to acquire parts for your project and also has 813 RCA technical sheets. I hope you enjoy! Be safe!

   Important Safety Information 

    The voltages involved with this project WILL KILL YOU. If you have any doubts about your abilities please seek assistance from a capable amateur radio operator or electronics technician.  Please work safely and responsibly around this equipment. I am not liable nor responsible for: the opinions expressed herein, accuracy, engineering methods, schematics, circuit functionality, damage to equipment, damage to parts, your safety, or anything else that may cause body, mental, or material property damage to yourself or others around you.  YOUR SAFETY IS YOUR RESPONSIBILITY.  You have been warned!!

Questions? kd7nrq@qsl.net

Last updated: 12 September 2004