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Posts tagged TTL

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 […]

Circuit Diagram Radio Stereo Coder Multplexer Part 1

Circuit Diagram Stereo Coder Multplexer Multiplexer consists of 4 TTL ICs and transistors. A 7600-kHz crystal oscillator built with the 3-NAND The IC’s 2 and 3 of type SN7490. Now think of 76 kHz signal as a divider of two Werken. Either 38 kHz signal and the output Q Qnot decreased. Transistors T1 and T2 […]

Circuit diagram in making incandescent lamps

Circuit diagram in making incandescent lamps This simple circuit that can be used to flash incandescent lamps up to 10W power rating. The circuit is ideal for making flashing beacons on automobiles and other applications like that.The circuit is nothing but  an astable multi vibrator based on Q1&Q2 ( BC557&BD139).The capacitor C1 is the main […]

Audio Amplifier Circuit using TDA2007

Audio Amplifier Circuit using TDA2007

Electronic Circuit Diagram TV Memory program Using AT24C0, 24C02N

Electronic Circuit Diagram TV Memory program Using AT24C0, 24C02N

power supply using A723

power supply using A723, Tube

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