400 Hz servo amplifier
The signal from a synchro receiver or a variable resistive cam follower (potentiometer) is boosted by operational amplifier Ul, whose output swing is limited by...
5 Mhz phase encoding
Readback data is applied directly to the input of the first NE592. This amplifier functions as a wide-band ac coupled amplifier with a gain of 100. By direct co...
Medical instrument preamplifier
Input current (from sensors connected to the patient) is limited to less than 5 µ under fault conditions.
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Programable amplifier
The intention of the following application shows how the NE5517 works in connection with a DAC. In the application, the NE5118 is used—an 8-bit DAC with ...
low frequency amplifier
Gain increases by decades as the binary input decreases from 1,1 to 0,0. Minimum gain is 1 and maximum gain is 1000. ...
Five-transistor amplifier
The circuit works from dc to 50 MHz and will deliver pulses as short as 10 ns. It is driven by a TTL signal through a 740S00 quad Schottky NAND gate, ICA throug...
Low Noise Moving Coil Audio Preamplifier
This preamplifier was designed for low resistance sources like moving coil heads (MC). The circuit uses in parallel three duble transistors SSM2220 or MAT03 and...
Very Low Noise Pick-up Preamplifier
The preamplifier was designed to signal sources such as low-impedance moving coil cartridges (MC) on turntables
high fidelity (and yet still there). The impeda...
High Quality Valve Amplifier
In recent years more and more, have a tendency ket demanded higher reimbursement structures with lights and music lovers in general and manufacturers of tube am...
Microphone preamplifier with TLC251
A microphone preamplifier using: om CMOS op amp with its own battery, is small enough to be placed in a case of small microphone. The amplifier operates from a ...
High input impedance amplifier CA3440
This circuit takes advantage of the leakage of low power, high input impedance, frequency and capacity of the excellent CA3440. ...
Amplifier Compressor MC3340P
The output is rectified and TR2 controls the gain of the ICL
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Stereo Preamplifier Circuit (741)
The circuit works with two 741 opamps and provides better than 20 dB gain in each channel. A better type op-amp will give a better noise figure and bandwidth.
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Headphone Amplifier circuit
This is a simple headphone amplifier. You can use any NPN transistor....
High fidelity amplifier circuit
This circuit for a compressor uses a high-fidelity external op amp, and a high gain and wide bandwidth. A compensation network input is necessary for stability....
Small current amplifier circuit
To amplify the small current signals as an electron collector inside a vacuum chamber, it is convenient for reasons of noise and bandwidth to have a "head-ampli...
GaAsFET amplifier circuit
The control circuit operates to double from a positive supply, which, when turned on the power of the first door. and goes off when the first drain as shown in ...
Programmable gain amplifier
The circuit uses the DG212 which controlling the gain using resistors. To calculate the different gains SW4 should be closed. Gain error is determined only by t...
Offset controlled stereo amplifier circuit
This stereo amplifier use the NE5517/A and has an excellent tracking of 0.3 dB typical easy. With the potentiometer, Rp, the offset can be adjusted.
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High gain amplifier circuit
The 2N5485, which has a very low-capacity legacy first, is always operated as a source follower with gate bias bootstrap.
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