27MHz CB Band Circuit Using TR SC1675, SC828, SA564, SA715,SC1383, SC1909 and IC TA7205
Posts tagged 27 MHz CB radios
Circuit to determine the humidity is a comparator, which detects the temperature change is very small in relation to the ambient temperature environment. Parts: R1_____________22K Linear Potentiometer (See Notes) R2_____________15K @ 20°C n.t.c. Thermistor (See Notes) R3_____________10K 1/4W Resistor R4,R5,R7,R9____22K 1/4W Resistors R6____________220K 1/4W Resistor R8______________5K 1/2W Trimmer Cermet R10___________680R 1/4W Resistor C1_____________47µF 63V Electrolytic […]
DC power converter 12V DC to 120V DC The most obvious approach would be to make a DC power converter 12V DC to 120V DC, output at 50 or 60 Hz, but this requires a rather large and heavy transformer. So it’s better to use a high frequency, at least 25kHz, so a very small […]
Fm Receiver Radio Digital Circuit using SP3232EB, PIC24FJ64GA002, LM1117, LM7805
180 W Amplifier Circuit With BC179, BC337, BC327, TIP42, TIP41 Transistor The function for this circuit is an audio amplifier capable of delivering a decent output power with a minimum no: of parts , with considerable sound quality. Component: BC179, BC337, BC327, TIP42, TIP41 Transistor, Resistor, Electrolytic Capacitor, Ceramic Capacitor.