Jfet Audio

JFETs: The New Frontier, Part 1 - audioXpress

https://audioxpress.com/article/JFETs-The-New-Frontier-Part-1

JFETs provide extremely high resolution, bringing out more details, sounding cleaner, clearer, and more natural than the best bipolar transistors such as the LM394, and even the best Telefunken tubes. Overall, I believe the JFETs offer the best sound in audio circuits.

Simple JFET Audio Preamps - Ciphers By Ritter

http://www.ciphersbyritter.com/RADELECT/PREJFET/JFETPRE.HTM

The N-JFET Audio Preamp Schematic The input transistorQ2 is an N-channel JFET. JFET must be selected from among multiple devices for the desired bias value. Fortunately, due to the low current involved, desirable devices can come from a wide range of device types. JFETs also vary with respect to gain and noise level, so best

Audio Amplifiers - JFET - InterFET

https://www.interfet.com/audio-amplifiers/

12 rows

An All-JFET Amplifier: Exploring Modern JFETs Circuits ...

https://audioxpress.com/article/an-all-jfet-amplifier-exploring-modern-jfets-circuits

So, the all-JFET amplifier can be used for various audio applications. Toshiba Semiconductors manufactured many junction field-effect transistors (JFETs) for audio applications: the 2SJ74/2SK170, the 2SJ103/2SK246, and the 2SJ104/2SK364 to name a few. Once production of these through-hole JFETs stopped, they became expensive.

JFETs and MOSFETs

https://www.sound-au.com/articles/fet-applications.htm

JFETs for RF applications will usually have lower capacitance than devices intended for low noise audio (for example). The capacitance is primarily due to the thickness (or otherwise) of the P-N junction that separates the gate from the channel.

JFET-MOSFET Power Amplifier | mosfetaudio-didik.com

https://mosfetaudio-didik.com/jfet-mosfet-power-amplifier/

JFET-MOSFET Power Amplifier. A lovely country with endless attraction. In the era of ’70 until the end of ’80, the audio amplifier manufacturers competed with each other offerring superior technical specifications in terms of the wide frequency response, total harmonic distortion and intermodulation distortion that under 0.01% (ranging 0.01 ...

Simple JFET Preamp - AUDIO WORKSHOP

https://blog.audioworkshop.org/simple-jfet-preamp/

A JFET preamp for beginners. Simple yet elegant. Low noise. The following is an example for a very simple and high quality JFET preamp. You can use this to amplify a very low signal sources. FET transistors are usually not used independently in preamplifiers. In most of the cases they are paired with bipolar transistors.

JFET audio switch question | All About Circuits

https://forum.allaboutcircuits.com/threads/jfet-audio-switch-question.28242/

#1 I would like to use a JFET, like a J113, as an audio switch that is in series with the signal. The audio input signal is tied to the Drain, and the audio output signal is tied to Source. The audio signal fluctuates above and below 0V. The Gate is controlled by a control voltage, where 0V= switch is on, and -5V= switch is off.

AN-32 FET Circuit Applications - Texas Instruments

https://www.ti.com/lit/an/snoa620/snoa620.pdf

Simple Audio Circuits - Making Easy Circuits

https://makingcircuits.com/blog/audio-amplifier-circuits-using-fet/