Building a Simple Radio Receiver

RE: Building a Simple Radio Receiver

bcschmi — Wed, 09 Feb 2022 23:01:41 GMT

Hi Shabaz,

For the amplifier side of the circuit, could the output from the Si4825 be connected directly to the input on the PAM8302 without the transistor (with the input negative connected to gnd)? What is the benefit of differentiating and amplifying the signal first? Thanks

RE: Building a Simple Radio Receiver

bcschmi — Wed, 10 Nov 2021 21:38:29 GMT

Hi Shabaz,

I have a few questions about the amplifier circuit.

1. What is the purpose of C13 above the collector pin on the transistor?

2. What is the purpose of R16?

3. could I supply 3.3v instead of 3v to the transistor part of the amplifier? Is that enough of a voltage change to require new values for the collector, emitter, and voltage divider resistors? Thanks,

Ben

RE: Building a Simple Radio Receiver

genebren — Sun, 19 Sep 2021 22:09:07 GMT

A very nice design (clear and simple). This would be a great project for anyone wanting to discover more about electronics, while building a useful radio.

Well done. (I am not sure how I missed this blog when it was originally posted)

RE: Building a Simple Radio Receiver

DAB — Sat, 26 Jun 2021 17:41:42 GMT

Nice project.

DAB

RE: Building a Simple Radio Receiver

rsjawale24 — Sat, 26 Jun 2021 16:14:42 GMT

A neat and clean PCB design with clear instructions. I have always wanted to create my own radio receiver from scratch. This one seems like a good start. Have you considered making a transmitter too?