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JFET Switching - Premier Guitar
https://www.premierguitar.com/jfet-switching#:~:text=All%20three%20switches%20are%20really%20JFETs%20%E2%80%93%20Junction,the%20JFET%20will%20no%20longer%20pass%20audio%20signal.
JFET Switching - Premier Guitar
https://www.premierguitar.com/jfet-switching
Source and Drain terminals are held at about half the battery voltage, so a higher voltage on the “Switch Control Signal” causes the Gate to be opened by the diode (switch “On”). The JFET then conducts audio signal. The diode, 1M resistor and capacitor slow down any sudden changes to the gate voltage to avoid pops and clicks.
JFET audio switch question | All About Circuits
https://forum.allaboutcircuits.com/threads/jfet-audio-switch-question.28242/
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.
Audio Switch Notes - Neat Circuits
https://www.neatcircuits.com/audiosw/index.html
There are two types of audio switches that will be shown. switch. A simple J-FET switch is easy to accomplish. required. The more common N-channel will not give the same results, especially A common device is the 2N5462 or the J176 or J177 available from Jameco(part number 140142CF $.59ea or 211414CF $.29ea at 2005 prices).
JFETs: The New Frontier, Part 1 - audioXpress
https://audioxpress.com/article/JFETs-The-New-Frontier-Part-1
You can use the JFET as a voltage-controlled resistor or a low-level switch in the triode region, and as an amplifier in the pentode region. As you see, the Nchannel JFET conducts maximum current I DSS with V GS = 0V. If you apply a negative voltage to the gate, it reduces the current in the channel, and you get a family of output characteristics as shown in Fig. 2A.
JFET Audio Switch Circuit - 2n5457 - YouTube
https://www.youtube.com/watch?v=UHr5t8oiy04
Taking a look at the common JFET circuits used in guitar pedals to switch effects in and out of the audio path. A test circuit was breadboarded to investiga...
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.
FET as a Switch | Working of MOSFET or JFET as a Switch
https://www.electronicshub.org/fet-as-a-switch/
FET as a Switch (JFET) From the above discussion, it is clear that the FET can be used as a switch by operating it in two regions, they are cutoff and saturation region. When the V GS is zero the FET operates in saturation region and maximum current flows through it. Hence it is like a fully switched ON condition.
The Junction Field-effect Transistor (JFET) as a Switch ...
https://www.allaboutcircuits.com/textbook/semiconductors/chpt-5/transistor-switch-jfet/
Field-effect transistors control the current between source and drain connections by a voltage applied between the gate and source. In a junction field-effect transistor (JFET), there is a PN junction between the gate and source which is normally reverse-biased for control of source-drain current. JFETs are normally-on (normally-saturated) devices.
AN-32 FET Circuit Applications - Texas Instruments
https://www.ti.com/lit/an/snoa620/snoa620.pdf
DTL-TTL Controlled Buffered Analog Switch This analog switch uses the 2N4860 JFET for its 25 ohm rON and low leakage. The LM102 serves as a voltage buffer. This circuit can be adapted to a dual trace oscilloscope chopper. The DM7800 monolithic I.C. provides adequate switch drive controlled DTL-TTL logic levels. TL/H/6791–28 20 MHz OSCILLATOR VALUES
Curious about Passing Audio Signal with a FET Switch ...
https://www.diystompboxes.com/smfforum/index.php?topic=95789.0
I'd like to control the flow of an audio (guitar) signal with a FET switch, like the Boss effects do - but i want to leave out the whole "flip-flop" portion and experiment to understand this one section. I put something like this together on the breadboard; the choices of diode, capacitors and bias resistors informed by threads here on the ...
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