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Making Audio with AN7116 Schematic audio amplifier

Making Audio with AN7116 Schematic audio amplifier
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Making 15W FM RF Amplifier using 2SC253

This is a FM RF amplifier which build based on RF Power Transistor 2SC2539. 2SC2539 is a silicon NPN epitaxial planar type transistor designed for RF power amplifiers in VHF band mobile radio applications. L1: 2T Coil diameter:4mm L2: in series 6pcs Toroidal ring L3: 4T Coil diameter:10mm L1: 3T Coil diameter:10mm
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Making 22W Power Amplifier using TDA1554

Making 22W Power Amplifier using TDA1554 Circuit diagram with main power IC TDA1554, this circuit works up to 22W. R1__________39K 1/4 Watt Resistor C1,C2_______10uf 25V Electrolytic Capacitor C3__________100uf 25V Electrolytic Capacitor C4__________47uf 25V Electrolytic Capacitor C5__________0.1uf 25V Ceramic Capacitor C6__________2200uf 25V Electrolytic Capacitor U1__________TDA1554 Two Channel Audio Amp Chip Making 22W Power Amplifier using TDA1554
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Making USB using RS232 converter

Making USB using RS232 converter works really well with all the devices I tried. USB to RS232 converter can also use FT8U232AM and Maxim-IC MAX235 If no FT8U232AM, could also use TTL level RS232 signals. The FT8U232AM and supporting components are also available as a complete module – called USBMOD1 – in 32pin DIL IC packages, making the [...]
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Making FM transmitter 0,4 W

Circuit electronics FM transmitter 0,4 W 12-14 V stab., 100 mA RF : 400 mW Impedance : 50-75 ohm Frequency range : 87,5-108 MHz Modulation : wideband FM C1, C2, C12 – 100 pF (ceramic) C3, C5 – 0,22 uF (electrolytic) C4 – 1,8 nF (plastic) C13, C16, C17, C19 – 1 nF (ceramic) C8, C9 – 10 pF (ceramic) C10 – 47 pF (ceramic) C11 – [...]
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Making Electronic Circuits Alarm for anti-fire

Making Electronic Circuits Alarm for anti-fire This circuit warns the user against fire accidents. It relies on the smoke that is produced in the event of a fire. When this smoke passes between a bulb and an LDR, the amount of light falling on the LDR decreases. This causes the resistance of LDR to increase and the voltage [...]
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