61
The RF Workbench / Common and Precious IV - Construction phase
« on: October 21, 2016, 1702 UTC »
Hey,
so, this is the board of the Beacon that I took with me on vacation during Autumn 2015. It Outputs approx 10W+ @ 13V. I wanted to play a bit with push-pull PAs. It's simple: oscillator, keyed buffer, driver and PA. PA (final) and oscillator/driver are feed seperately. Which allows me to feed the PA with higher voltages seperately.
Since I have no use for this as a Beacon any longer (got replaced by the 30W Class D CW Beacon) I'm planning to turn this one into a small AM transmitter for experimenting and having some fun.
The big AM Transmitter project (300W+) already goes by the name "Dirty Phoenix". So I call this one "Dirty Phoenix Jr."
Next todo: mounting it to a chassis with proper heatsink and cleaning up the inductor mess.
Kind Greetings,
Zazzle
so, this is the board of the Beacon that I took with me on vacation during Autumn 2015. It Outputs approx 10W+ @ 13V. I wanted to play a bit with push-pull PAs. It's simple: oscillator, keyed buffer, driver and PA. PA (final) and oscillator/driver are feed seperately. Which allows me to feed the PA with higher voltages seperately.
Since I have no use for this as a Beacon any longer (got replaced by the 30W Class D CW Beacon) I'm planning to turn this one into a small AM transmitter for experimenting and having some fun.
The big AM Transmitter project (300W+) already goes by the name "Dirty Phoenix". So I call this one "Dirty Phoenix Jr."
Next todo: mounting it to a chassis with proper heatsink and cleaning up the inductor mess.
Kind Greetings,
Zazzle