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Make led light car

Make led light car circuit using 74C164, 4011

Adding led pedal – Connecting Additional Leds

Adding led pedal – Connecting Additional Leds to LM2794 Charge Pump Output

Telephone Systems

Audio speakers circuit board from Telephones using IC BA8024, ML8204 Audio speakers systems Circuit board for Telephone Systems

Wireless Systems Using Aurel RX FM

Portable PA System with Wireless Microphone using wireless systems circuit diagram Component 1: R1 100 Ω        C1 100 µF 25V     D1 1N4007 R2 5.6 kΩ       C2 10 µF 16V        T1 BC547 R3 470 kΩ     C3 220 nF              U1 Aurel TX FM […]

Universal Laptop Power Supply

Universal Laptop Power Supply using LM741 and 2N3055

MAX2264/MAX2265/MAX2266 power amplifiers are designed for operation in IS-98-based CDMA

The MAX2264/MAX2265/MAX2266 power amplifiers are designed for operation in IS-98-based CDMA, IS-136-based TDMA, and PDC cellular telephones operating in the 900MHz range. When matched for CDMA operation and biased with margin over the adjacent and alternate channel specification (-45dBc/-56dBc), the amplifiers achieve 28dBm output power with 37% efficiency (MAX2265). At +16dBm output-a very common power […]

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