What is the best FM receiver circuit?

[Sashvat]

Hi everyone, I've always wanted to build a FM radio for myself and listen to some music, I searched the internet but some of the parts were difficult to find, I want to create a compact radio and I want parts I can find on Mouser, for both THT and as SMD components as I plan to put it on a breadboard and make some changes and then move onto a PCB, let me know if there are some good sounding FM receiver schematics that work.

Thank you!

 

[crutschow]

Have you worked with RF circuits before?
Building RF circuits that work at 100MHz and an IF that works at 10MHz is not a trivial exercise.
It's unlike you could get a breadboard to work properly unless it is carefully laid out and built on a vector board with a ground plane.

 

[Sashvat]

Yes crutschow I have worked with them, but it was in a PCB form, do you know any schematic?

 

[rjenkinsgb]

This is an example; the first IC seems readily available, the second exists on ebay but may be dubious..

Funktechnik-Webseite von DL4CS

Schaltungen und Beschreibungen funktechnischer Geräte mit Röhren, Transistoren und ICs

dl4cs.de

Or use the top half of that for the front end tuner & downconverter, then the 3089 based 10.7 MHz IF and demodulator from this design:

http://hobby.dapj.com/2016/06/low-cost-am-fm-stereo-receiver.html

The 3089 is still available new from some suppliers, eg.

http://www.cricklewoodelectronics.com/CA3089E.html

Most present FM receivers use devices controlled by microprocessors & the RF ICs cannot be used alone.

You could just replicate the circuit from the Elenco kit radio, if you want all-discrete components? Some scrap old scrap FM radios could be a source of parts..

The circuit is on the last page of the manual, downloadable from the kit page here:
**broken link removed**


A Crutshaw says, it is very unlikely to work on a plug-in breadboard.

"Dead bug" construction on plain copper board is far better for RF prototyping.

 

[Sashvat]

Thanks a lot!