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Archives for February, 2010

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

Circuit diagram 60W AF Amplifier With STK-0060II

Circuit diagram 60W AF Amplifier With STK-0060II This is a high power amplifier based on single Sanyo integrated circuit STK-0060II.

20W HiFi Power Amplifier Using TDA2040 circuit diagram

20W HiFi Power Amplifier Using TDA2040 circuit diagram This is a Hi-Fi power amplifier circuit build based on single power amplifier IC TDA2040. The single TDA2040 has able to deliver 20W power output. The bridge amplifier which consist of double TDA2040 can deliver 30W power output (8 ohm loudspeaker). 20W HiFi Power Amplifier Using TDA2040 […]

Led Strobe

6v led strobe circuit using CD74HC4017 and MM74C14 6v led strobe circuit using CD74HC4017 and MM74C14 Led Strobe 1 IC1 MC14584BCP IC2 CD74HC4017N T1 2N3904 or 2N4401 NPN transistor 8 D1 to D8 1N4148 or 1N914 Diodes 10 LEDs Blue, green or white Ultra-Bright LEDs with Vf = 3.2V or less at 20mA 1 R1 […]

Class D Audio Amplifier Circuit

Class D Audio Amplifier Circuit Class D Audio Amplifier Circuit using stk4372 Class D Audio Amplifier Circuit Class D Audio Amplifier Circuit

Home audio amplifier

Home audio amplifier 100W power amp using TR Home audio amplifier

a integrated circuit

a integrated circuit op amp preamp circuit KA1222 a integrated circuit a integrated circuit

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