Transmitters
VOX circuit schematic
VOX is a switch ordered by voice, often used at microphones instead of the classic switch button. The vox described here may be connected to almost any type of audio equipment which has an external speaker for coupling.
The threshold action is set with volume potentiometer of the audio amplifier which commands the [...]
NS741 fm stereo transmitter
NS741 is an integrated circuit, a small power fm transmitter were left and right audio signals can be modulated in FM stereo with multiplexing.
NS741 Description:
It is a small power fm transmitter that allows data transmission RDS (Radio Data System). Incorporated DSP generates stable stereo signal and attachment RDS data.
NS741 applications:
- Wireless microphone
- Cd and portable [...]
UUS 65 - 73 MHz fm transmitter
A basic UUS 65 73 MHz fm transmitter circuit schematic which can be used as uus oscillator with no explanation …
65 - 73 MHz transmitter ( oscillator ) circuit components:
L1 = 8 t / 0.3mm / 6mm
L2 = 8-12 t / 1mm / 15mm / 1mm gap
SRF = 60t / 0.2mm / 3mm / [...]
