9V fm transmitter circuit design using transistors


Posted on Feb 6, 2014

The tuned coil L1, has two output tapping for the antenna connection, marked `A` and `B`. These are both low-level outputs and you choose which tapping you want to use ( stable low range, or more unstable but higher range). Tap B (2. 5%) takes just a very small portion of signal from the oscillator circuit and therefore gives a very frequency stabl


9V fm transmitter circuit design using transistors
Click here to download the full size of the above Circuit.

e transmitter. The output level (around 2. 5mW) and range are therefore somewhat reduced. The frequency determining elements (L1, C5 and C6) form a simple LC tuned oscillator. The inherent problem with this type of circuit diagram transmitter is that any external load (antenna) will change the operating frequency.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Lazy ISP Socket Adapter
    USB Powered Stereo PC Multimedia Speaker
    Updated 60-100W Hi-Fi Power Amplifier
    radio frequency rf watt meter circuit
    Inductive Proximity Sensors
    HELIUM NEON LASER PS WITH HV PULSE IGNITION
    Brush 6 channel camera power supply circuit MAX1566-1567
    Automatic telephone call recording circuit



    Top