Once inside the business of SMD components have been tiny FM transmitter circuit pcb printed circuit board design is very stylish as most of us see in the PC main board CR2032 3V battery size is already out of the energy that the battery is placed in the PCB battery socket. The frequency of the FM transmitter circuit is set to upgrade the hard work between 175mhz 190mhz bad … but almost has the same structure are tuned FM transmitter circuit sprinter ready source of PCB layout drawing drawing editable file given there are different versions.
According to the description, explain the FM transmitter circuit is able to broadcast up to 400 feet in 5 … 6 meters also can receive sound from. CR2450 3V Lithium battery with a higher current, which has 80 hours of operating time.
On the circuit L1 coil 0.5 mm insulated wire of 2.5 mm with a diameter of a rod (pen, etc.) On the 4th round winding can be prepared L2 coil is 0.31 mm for the insulated wire 20 turns to be wound around the same 2.5mm Hi highest efficiency antenna for size single vessel wire 62cm
Attention: FM transmitter circuit should be used for experimental purposes only and should not be used for any hidden activities
source: vrtp.ru alternative link:
FILE DOWNLOAD LINK LIST (in TXT format): LINKS-22657.zip
Published: 2014/01/07 Tags: analog circuits projects
Protector tweeter
tweeter protection circuit To create this structure led me to the fact that I built speaker system total output of 100W, which are connected the power amplifier 2 x 150W. Even though the manufacturer of height Speaker (TVM) indicates that continuous power is 30W and 120W short, and peaks that are at full excitation amplifiers fall into speaker may be several times higher. However, it may happen that in the belief that own power tweeter, which is connected to an amplifier with a much smaller power to destroy the loudspeakers. This is largely due transistor amplifier, which in overdrive clipping the signal to NF rectangular. This is the cause of the increased content of high frequencies, which i with less power that would not destroy the speaker, blow winding coil speaker
175MHz-190MHz Kleinen 3V FM-Sender-Schaltung
Sobald Sie in das Geschäft von SMD-Komponenten wurden die kleinen FM-transmitter circuit Leiterplatte printed circuit board-design ist sehr stilvoll, da die meisten von uns sehen in der PC-Hauptplatine CR2032 3V-Batterie Größe ist bereits aus der Energie, die der Akku eingelegt wird, in der platine Batterie-Buchse. Die Frequenz des FM-Sender-Schaltung ist um die Aktualisierung der harten Arbeit zwischen 175mhz 190mhz schlecht … aber hat fast die gleiche Struktur abgestimmt sind FM-Sender-Schaltung sprinter bereit Quelle von PCB-layout die Zeichnung editierbare Datei, denn es gibt verschiedene Versionen.