Amp Tone A circuit | Next Electronics

The graphs below illustrate the computer predictions of filter performance provided by Harry PA0LQ. Click on the thumbnail to view the full-size graph. A significant challenge in aligning the filter was the lack of access to a frequency counter with...

circuit power audio amplifier with

This circuit is a complete application for a 2.1 amplifier system, featuring two satellite speakers for TDA and one subwoofer. It is commonly used in commercial applications to enhance the audio output of computers using a stereo amplifier along with...

fADC Amplifier Circuit Simulations

A bandwidth-limited amplifier shapes the waveform sampled by the 40 MHz high-speed pipeline Analog to Digital Converter (fast ADC, or fADC). It is well known that the shaping time is twice the time constant (peaking time) for each pole of...

SYNCHRONOUS FILTER FOR ADF

Separates 130-cps motor drive voltage from voice frequencies in the output of an ADF receiver. P. V. Sparks, Servo Filter and Gain Control Improve Automatic Direction Finder, Electronics, 34:23, p 110-113. The circuit described functions as a filter that effectively separates...

vox ac30 preamp

The bright channel of the Vox AC30 Top Boost preamp begins with a traditional 12AX7 preamp connected to a volume control with a bright bypass capacitor. This is followed by two more stages to prepare the signal for the tone...

4 order filter with a single IC project PCB

High-order circuit filters are typically designed using two or more cascaded sections. This fourth-order filter requires only one operational amplifier (OA) integrated circuit (IC), which helps achieve lower distortion and reduced intermodulation. The resistor values represent the load on the...

Antialiasing And Sync-Compensation Filter

Two dual-biquad filter chips and some external components form a multipurpose filter to reconstruct D/A converter signals. Connected to a converter's output, the filter provides antialiasing, reduces the D/A converter's quantization noise, and compensates for the "sync" function (attenuation). The...

Radio Amplifiers Circuits

This is a 1 watt FM amplifier with a robust design that can be used to amplify an RF signal in the 88 to 108 MHz band. It is highly sensitive when utilizing quality RF power amplifier transistors, trimmers, and...

Preamp Mixer Stomp-Box for Dobro Guitar

A stomp-box was designed and built for Grammy-winning resophonic guitar player Stacy Phillips. He typically uses two transducers on his Dobro-style instruments: a piezo element mounted internally and a gooseneck-mounted electret microphone positioned approximately one inch above the resonator cover....