Sensitive FM Tuner
This FM radio tuner is the right circuit for hobbyists who want to build their own tuners instead of buying a “plug-n-play” finished product. The fm tuner circuit is designed with only 3 transistors. The amplification is around 40 dB. The first transistor works as an RF amplifier. The second transistor is the mixer.
The incoming signal is introduced into the base and the oscillator signal is coupled to the emitter. The third transistor is the oscillator. The coils are wind around 6 mm coil formers with a ferrite core. The best material for the coils is a silver coated copper wire since it is very easy to be tapped. The distance between the windings must be 0.8 mm.
FM tuner circuit diagram
about 12 months ago
is it tested , is it worked
about 10 months ago
Is there any schematics available for stereo fm radio reciever?Please help me
about 10 months ago
Man…do google search for Fm Stereo receiver or IC TEA5711, It is available over there.
about 5 months ago
Boy if you find a schematic for an FM stereo tuner let me know, I have looked hi and lo and found nothing, especially in this day and age.
Back 25 yrs ago you pick and choose HI
Thanks, Jerome
about 10 months ago
This is the schematics that I search with a simple circuit, few, cheap, and easy to find the components in my country thank’s very munch
about 8 months ago
I think the circuit is just a normal front-end only. Meaning, RF, Mixer & OSC, that requires to feed into IF circuit in order
to convert into unmodulated signal. There are designs that theres no IF circuit as seen on many webs, titled “one transistor
FM tuner” and if we will compare this circuit to that, there are big differences. I have a big doubt on oscillator circuit
too. R8 & C11 should be connected to ground in order to have a complete path I think. It’s just my opinion only, if any one
built this circuit and it’s working well according to the designed, please let me know, thanks… ===jronelksa===
Pinoy_Electronics Mod.
about 3 months ago
1. single frequency
2. good sensitivity
3. telescopic antenna
4. PLL
5. AC mains options
6. line out.
These type of iwnt
Plz help me