High-Impedance Audio Buffer With JFETThe buffer circuit described here is useful in enhancing the AC input impedance of audio amplifiers used with pickups in musical instruments. Signal sources for amplifiers and passive pickups for electric guitars require very high-impedance of over 5-mega-ohm. This can be achieved easily with junction field effect transistor (JFET) but may require special design of the printed circuit board (PCB), appropriate construction techniques of the box, proper cables and connectors. This project provides a solution for a high-impedance, low-cost, low-quiescent current, buffer-follower based on PN4393 JFET.

Question

Rohit Nagar · Accepted Answer

High-Impedance Audio Buffer With JFETThe buffer circuit described here is useful in enhancing the AC input impedance of audio amplifiers used with pickups in musical instruments. Signal sources for amplifiers and passive pickups for electric guitars require very high-impedance of over 5-mega-ohm. This can be achieved easily with junction field effect transistor (JFET) but may require special design of the printed circuit board (PCB), appropriate construction techniques of the box, proper cables and connectors. This project provides a solution for a high-impedance, low-cost, low-quiescent current, buffer-follower based on PN4393 JFET.

Assertion : Through the same current flows through the line wires and the filament of the bulb but heat produced in the filam...

To make a signal diode suitable for high current & high voltage carrying applications with minimum losses, ________

To make a signal diode suitable for high current & high voltage carrying applications with minimum losses, ________

Arrange the following High Courts in ascending order of the year of their establishment. A)Patna High Court B) Bombay High Co...

#Can you guess?#9. The highest peak of the Western ghats is in this state.The state has a chain of brackish lagoons and lakes...

Choose the correct statement(s)i) The gate circuit impedance of MOSFET is higher than that of a BJTii) The gate circuit...

. All good conductors have high

High frequency gating uses a

Highest Jute producing state in India?

Example of high resistivity material is ________________

Featured Courses

Popular Pages

SAT (Scholastic Assessment Test)

Study24x7

Henry Harvin

SSC Preparation Strategies & Study Mater...

Banking/IRDA

DEFENCE EXAM PREPARATION

Vivishka Learning and Test Series

RAU IAS COACHING

Daily Current Affairs

Get the App

Successful career options after B.Sc in Agriculture

2 Eggs and 100 Floors Puzzle

Leveraging DevOps Development Services for Agile Software De...

UPSC 2020 Exam - NEWS Analysis 13th January

Allahabad High Court RO, CA Revised Result 2020

HIGH COURTS IN INDIA

How to Plan your Study Schedule for Class 9th?

The Role of Chief Marketing Officers in Delivering Exception...

Top 10 List of IELTS Coaching Institutes in Amritsar

Exploring the Benefits of Digital Printing Services in Dubai