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Archives for October, 2014

Cell phone power supply schematic using 723 and 7812

Cell phone power supply schematic 2 – 7V 6/8A using 723, 7812, Tip 142, BD 139 Cell Phone Charger and Adapter Applications. This product is universal, portable and a rechargeable power for Power Bank Cell phone power supply schematic 2-7V 6-8A using 723 and 7812 Block diagram of Linear Regolated power supply. This simple usb cellphone […]

Low drift peak detector circuit

Low drift peak detector circuit using LM124A, 2N929

Circuits OP Amp

Circuits OP Amp Op amp Interface using RC4558P Op amp Interface using RC4558P Dual High-Gain Operational Amplifier using RC4558P Features Supply voltage 22V for RM4558 and 18V for RC/RV4558 No latch-up Large common-mode and differential voltage ranges Low power. Parameter tracking over temperature range Gain and phase match between amplifiers The RC4558 integrated circuit is […]

Circuit diagram 500mW FM PLL transmitter 88-108MHz using LMX3206 – PIC16F870

500mW PLL FM transmitter 88-108MHz This PLL transmitter is controlled and the frequency is very stable and can be programmed digitally. Transmitter will work 88-108 MHz and output power up to 500mW. With a small change can set the frequency of 50-150 MHz. The output power is often set to several watts with transistors. So […]

Replacement Lamp Electric Circuit

Replacement Lamp Electric Circuit

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