Radio Theory and design

These amps are designed to use 'universal' parts at AF. You can use adjust the capacitors and use them at higher frequencies. The...

I finished the sim on Ryan's receiver and added an audio amp.  15uw would be more than enough to rattle my earbud. The output could b...

The antenna is 200 ohm so the common base is a good Z match. I set the generator at 200 ohms with 1 mv out. The input is 500uv....

 inputs outputs With the reference set to one output measuring the difference between them. The circuit on my pre...

In order to look into Ryan's receiver we need a model for the ne602. I have one but it is a screen full DC biasing and such. For our pu...

My friend designed and built it. He was kind enough to allow me to post it. He shows his work so it is a good project to study. It cou...

I set the generator to produce a 10mv signal riding a 1700mv bias. The 1k emitter resistor will 'self adjust' to about 1 volt pro...