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It is currently 24 Sep 2017, 05:11

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PostPosted: 19 Jun 2017, 21:55 
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Joined: 06 Oct 2012, 09:23
Posts: 15
Location: Ohio, USA
Here are some pix of my Arduino-based FM stereo receiver. It uses a Silicon Labs Si4703 FM chip and is paired up with Micca MB42X bookshelf speakers:

Image]

This bottom view of the interior shows the key circuit modules.

Image

The green module is an Arduino UNO R3. The blue board is the LCD assembly, and the red board is a breakout for the Si4703.

The last photo shows the four receiver controls (power ON/OFF, left/right volume, and tuning (a momentary up/down toggle switch).

Image

How does it perform? Sensitivity, stereo separation, and sound quality are tops in my collection of FM sets... second only to a JVC RX-318 tuner paired up with a Williamson amplifier and Cambridge Soundworks Ensemble loudspeakers :D .


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PostPosted: 20 Jun 2017, 09:52 
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Joined: 08 Aug 2009, 03:11
Posts: 2038
Location: Chilliwack, BC
Very cool! :thumbsup:

Wish there was decent FM where I lived. I always wanted to make a homebrew tube receiver.

Cheers!

_________________
-= Gregg =-
* Ratings are for transistors - tubes have guidelines*
Home: GeeK ZonE
Work: Classic Valve Design


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PostPosted: 20 Jun 2017, 19:29 
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Joined: 06 Oct 2012, 09:23
Posts: 15
Location: Ohio, USA
Geek wrote:
Very cool! :thumbsup:

Wish there was decent FM where I lived.



Thank you! Would a high-gain outdoor antenna help?


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PostPosted: 21 Jun 2017, 13:19 
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Joined: 08 Aug 2009, 03:11
Posts: 2038
Location: Chilliwack, BC
Moutainous terrain, so nope.

I'm at the end of a valley, surrounded by mountains with a VHF view of only the Vancouver radio corridor. That means 2 Pop stations and the remaining is either CBC channels (all the same) or Classic Rock (all SOUND the same, LOL).

When I lived in a town called Abbotsford, I had a 5-element FM beam that scooped the Seattle Jazz stations 8-)

Cheers!

_________________
-= Gregg =-
* Ratings are for transistors - tubes have guidelines*
Home: GeeK ZonE
Work: Classic Valve Design


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