 |
LA6NCA LA6NCA-6146, SI5351 CW Transmitter |
 |
|
LA6NCA LA6NCA-6146, SI5351 CW Transmitter |
|
| I have designed a new
transmitter. The oscillator consists of a modern SI5351 and output stage consists of a 6146 tube amplifier. |
| Three cables are connected to the transmitter.
Antenna cable, 12VDC Power and CW key. The frequency shown on the display. On the three pushbuttons I can choose the desired frequency. |
I'm testing for the
first time the transmitter with my S-tuner.
Both have this special plexiglass design.
|
|
|
This appears during startup. |
When the transmitter is ready, the frequency is displayed. |
During transmission this will be displayed. The white line is an instrument that shows the output voltage. This is used for tuning the output circuit |
The front plate is made
of transparent plastic. The box is made of wooden drawer..
| Here is the oscillator and
power. To the left we have an Arduino Nano. In the middle we have an SI5351 oscillator. To the right, we have the 300V power. |
SW:
| Here is my homemade
capacitor. It consists of copper foil with teflon
issolation. The coil is also homemade. Tuning is done with a ferrite screwed into the coil. |
