Oscilloscope-counter-preamplifier
The circuit will provide a 20 ±0.1 dB voltage gain from 500 kHz to 50 MHz. The low-frequency response of the amplifier can be extended by increasing the val...
Oscilloscope-preamplifier
This circuit provides about 20 dB voltage gain with a frequency range from 0.5 to 50 MHz. You can extend tbe low-frequency response of this circuit by increa...
Scope-sensitivity-amplifier
This circuit provides 20 ±0.1 dB voltage gain from 0. 5 to 25 MHz and ± 3 dB from 70 kHz to 55 MHz. An LM733 video amplifier furnishes a low input-nois...
Pwm-servo-amplifier
A major feature of the PWM servo amplifier is elimination of a pulse transformer. A 150 kHz pulsewidth modulated signal is applied to U3, with its complementar...
Input-buffered-mixer
A high signal-to-noise ratio is important in signal construction and combination. The HA-5147 aids in lowering overall system noise and thereby raises system...
Wideband-500khz-1ghz-hybrid-amplifier
The amplifier"s input stage is a dual-gate GaAs FET, which provides low input capacitance and high transconductance. The dual-gate structure accepts the signal...
Miniature-wideband-amplifier
This wideband amplifier uses only five components. External signals enter pin 3 of IC1 via ac coupling capacitor Cl. Following amplification, the boosted sig...
29Mhz-amplifier
The only adjustments that require close attention are input, output, and neutralization. The 150-pF capacitor in the input line compensates for impedance misma...
80W-3-30mhz-amplifier
This amplifier utilizes a 2N6367 and a pair of 2N6368 transistors. The 2N6367 transistor is employed as a driver and is specified for up to 9 W (PEP) output. I...
2-30Mhz-140w-linear-amplifier
The amplifier operates across the 2 -30 MHz band with relatively flat gaio response and reaches gain saturation at approximately 210 W of output power. Both in...
Read-head-preamplifier
Choosing de rather than ac coupling can reduce much of the noise associated with preamplifiers for a magnetic reading head, particularly in the low frequencies...
Speaker-amplifier
The LM383 is an audio-power amplifier that is capable of producing up to 8 W of audio output. R1 is essentially a load resistor for the hand-held transceiver"s...
Line-operated-amplifier
T1 isolates the unit from the line, and has a 24-V, center-tapped secondary. The output of the transformer is rectified by diodes D1 and D2 and filtered by cap...
Audio-amplifier
C9 is necessary to filter-out rf input interferences. R3 in combination with C5 is used to limit the af frequency bandwidth. ...
Micro-sized-amplifier
Sound detected by electret microphone MIC1 is fed to IC1"s input through resistor R2, and capacitors Cl and C2. Resistors R2 and R5 determine the overall stage...
20Db-audio-booster
The amplifier"s gain is nominally 20 dB. Its frequency response is determined primarily by the value of just a few components-primarily C1 and Rl. The values i...
Microphone-amplifier
This circuit features the ZTX450/ZTX550 transistors in a push-pull output stage. The following readings were taken at maximum volume: Input: 0.4 mV rms, Output...
Constant-bandwidth-amplifier
The traditional restnct1on of constant gainbandwidth products for a voltage amplifier can be overcome by employing feedback around a current amplifier. Two curr...
Amplifier-for-signal-supply
This unity-gain follower amplifier has a CMOS p-channel input, an npn second-gain stage, and a CMOS inverter output. The IC building blocks are two CA3600E"s (...
Write-amplifier
The proliferation of industrial and computerized equipment containing programmable memory has increased the need for reliable recording media. The magnetic tape...