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Recent New Posts

 Transistor stereo bass booster

Sunday, September 15th, 2013

This is a bass booster that use transistors as base. It is designed to increase a low frequency of audio on cheaper than ICs or normally circuit. since use each channel only 2 transistors together with resistor and capacitors approximately ten parts only. In circuit will be have a potentiometer trimmer 10-50K act as adjusted […]

 Variable Time base oscillator by cmos IC

Friday, September 13th, 2013

This circuit is a variable time base oscillator that has operation as characteristics of high frequency pulse oscillator generator out to a Decade counter circuit. So that send a pulse signal appears at the output of one signal per the counting clock signal that as 10 pulse. Cause easy to building the lower signal to […]

 Ham radio transceiver status display indicator

Thursday, September 12th, 2013

This is a ham radio transceiver status display indicator circuit that small and easy to build. The application a Ham radio transceiver has 3 characteristic differential are Firstly is Monitored status or Sometimes called standby, Means to turn on the Ham radio transceiver to To listen or wait for a call from either one, will […]

 Sawtooth wave generator circuit using UJT

Wednesday, September 11th, 2013

In the Figure 1 circuit used Q1 is UJT to connects with VR1(potentiometer), VR2 and C1. They acts as a sawtooth wave generator circuit, by C1 to charge and discharge. Then, current from the 5V power supply through VR1 and R2. This current and voltage that increase and reduce, cause Q1 generate signal. Which have […]

 DC to DC converter 12V to +/-40V using LM3524

Sunday, September 8th, 2013

This is the DC to DC converter project for converts from 12V car battery to dual voltage of +40V Ground and -40V (Available of +/-27V ; +/-30V ; +/-30V; +/-50V as setting parts) are used as power supply of 50W-100W amplifiers. When you want to increase your car amplifier. Essentially, there are 3 ways in […]

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