Results tagged #Jfet in Circuits
JFET-Bipolar Cascode
The following schematic shows the JFET- Bipolar Cascode Circuit Diagram. The JFET- Bipolar cascode circuit will provide full video output fo...
CRYSTAL TESTER
JFET Pierce oscillator will test any crystal from 50 kHz through 25-MHz upper frequency limit of fundamental-mode crystals without tuning, a...
JFET VOLTMETER
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JFET Low Noise Preamp
Noise, in amplifier circuit, is generated intrinsically by each components inside the circuit. Resistor, capacitor, and semiconductor genera...
200 MHz Cascade Amplifier
The 200 MHz JFET has same features below: 1. Low crossmodulation 2. Large-signal handling ability 3. No neutralization 4. AGC controlled by ...
200 MHz Cascade Amplifier
The 200 MHz JFET has same features below: 1. Low crossmodulation 2. Large-signal handling ability 3. No neutralization 4. AGC controlled by ...
JFET Nixie Tube Driver
This is a driver circuit for nixie tube. This circuit uses 2N3684 as nixie tube drivers because its Vp is 2-5 volts which is ideally matches...
JFET Nixie Tube Driver
This is a driver circuit for nixie tube. This circuit uses 2N3684 as nixie tube drivers because its Vp is 2-5 volts which is ideally matches...
High Gain JFET Audio Amplifier
This is a simple high gain JFET audio amplifier circuit. This circuit need very low power but it provides high gain amplifying function. It ...
High Gain JFET Audio Amplifier
This is a simple high gain JFET audio amplifier circuit. This circuit need very low power but it provides high gain amplifying function. It ...
JFET Pierce Crystal Oscillator
This is a simple JFET pierce crystal oscillator. We can use a wide frequency range of crystal using this circuit without circuit modificatio...
JFET Pierce Crystal Oscillator
This is a simple JFET pierce crystal oscillator. We can use a wide frequency range of crystal using this circuit without circuit modificatio...
JFET AC Coupled Integrator
This is JFET AC Coupled Integrator circuit. This circuit is used to achieve very high voltage gain. To achieve very high voltage gain this c...
JFET AC Coupled Integrator
This is JFET AC Coupled Integrator circuit. This circuit is used to achieve very high voltage gain. To achieve very high voltage gain this c...
PIERCE CRYSTAL OSCILLATOR
The JFET Pierce oscillator is stable and simple. It can be the clock of a microprocessor, a digital timepiece or a calculator. With a probe ...
PIERCE CRYSTAL OSCILLATOR
The JFET Pierce oscillator is stable and simple. It can be the clock of a microprocessor, a digital timepiece or a calculator. With a probe ...
Two-Stage JFET Preamp/Booster
This circuit makes a nice, clean preamp or a clean booster pedal. It is not designed for overdrive, but is designed to be overdrivable. If o...
Two-Stage JFET Preamp/Booster
This circuit makes a nice, clean preamp or a clean booster pedal. It is not designed for overdrive, but is designed to be overdrivable. If o...
Television Camera Experiments
JFET input. PN photodiodes such as the popular "bullet cell" put out an extremely low-level signal. Yet photodiodes offer advantages over ph...
FET Preamplifier
J201 JFET works best at 10 volts. The minimum current is 0. 5 mA. These are all ideal specifications. The specification spread of FETs is no...
JFET static detector
Hello, this is my first post here. I built several versions of JFET static charge detectors and I`m seeing some differences I can`t explain ...
JFET PREamp
The input transistor Q2 is an N-channel JFET. Each particular JFET sets a particular output bias voltage, so the JFET must be selected from ...
project armageddon processor
This is a simple JFET input buffer that goes into a clean boost based on the old Electro-Harmonix LPB-1 Linear Power Boost. The guitar input...
multi channel audio mixer using jfet
2N3819 is an n-channel JFET especially manufactured for RF and mixer applications and provides very low noise, very low distortion and excel...
Circuit Diagram for RC-Phase Shift Oscillator using JFET
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Portable Mic Pre-amp
Designed by Don Tillman, this guitar pre-amp circuit design is dedicated for people who don`t like op-amps. This circuit is a discrete JFET ...
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 adapte...
4-Channel Commutator Circuit
This 4-channel commutator uses the 2N4091 to achieve low channel ON resistance (k30X) and low OFF current leakage. The DM7800 voltage transl...
JFET-Bipolar Cascode Circuit
JFET-bipolar cascode circuit will provide full video output to drive the CRT cathode. The advantage is about 90. Cascode configuration elimi...
4-Channel Commutator
To reach low channel ON resistance (...
Simple JFET Preamp
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 trans...
JFET iPod preamplifier
JFET iPod preamplifier, DIY Hifi, schematic...
high impedance input JFET/BJT buffer circuit
this is a rather common cookbook circuit that you can find in books and on the net, yet personally i have yet to see it in stompbox circles,...
Very Low Frequency Multivibrator Circuit
The use of JFETs permits, high resistance and long time constants in this very low frequency multivibrator....
Fet Microphone Mixer Circuit
A JFET transistor-is used as a high-to-low impedance converter and signal mixer. Input impedance is approximately 50.0 kQ but it can be inc...
Bootstrap Circuit
Bootstrapping the substrate of a JFET amplifier reduces the distortion caused by the non-linlearity of the JFET input capacitance. In the f...
Jfet Chopper Circuit Circuit
A JFET (MPF102) is used to chop a dc signal for amplification in an ac coupled amplifier. Q3 is the chopper element and Q1-Q2 forms the mul...
General-Purpose Jfet Preamp Circuit
This JFET preamplifier has a gain of about 20 dB and a bandwidth of over 100 kHz....
Jfet Amp With Current Source Biasing Circuit
A current source (MPF102) in the source lead of bipolar transistor 2N3906 permits accurate control...
Jfet Wideband Amplifier
Using an MPF102 JFET, this circuit has a 50- input impedance. Load impedance should be about 470 . A 3:1 matching t...
Jfet bipolar cascode video amplifier
The JFET-bipolar cascode circuit will provide full video output for the CRT cathode drive. Gain is about 90. The cascode configura-tionelimi...
Jfet sample and hold
The logic voltage is applied simultaneously to the sample and hold JFETs...
200Mhz cascode amplifier
This 200 MHz JFET cascode circuit features low cross-modulation, large signal handling ability, no neutralization, and AGC controlled by bia...
200Mhz cascode amplifier
This 200 MHz JFET cascode circuit features low cross-modulation, large signal handling ability, no neutralization, and AGC controlled by bia...
Jfet pierce crystal oscillator
The JFET Pierce crystal oscillator allows a wide frequency range of crystals to be used without circuit modification...
5Mhz vfo
A JFET (Ql) serves as the oscillator. D2 helps to stabilize the transistor by limiting positive sinewave peaks and stabilizing the bias. Out...
Jfet ac coupled integrator
This circuit utilizes the "µ-amp" technique to achieve very high voltage gain. Using CI in the circuit as a Miller integrator, or capacit...
Pierce crystal oscillator
The JFET Pierce oscillator is stable and simple. It can be the clock of a microprocessor, a digital timepiece or a calculator. With a probe ...