2SJ 1. TOSHIBA Field Effect Transistor Silicon P Channel Junction Type. 2SJ Low Noise Audio Amplifier Applications. · Recommended for. 2SJ74 datasheet, 2SJ74 circuit, 2SJ74 data sheet: TOSHIBA – Low Noise Audio Amplifier Applications,alldatasheet, datasheet, Datasheet search site for. 2SJ74 datasheet, 2SJ74 circuit, 2SJ74 data sheet: TOSHIBA – P CHANNEL JUNCTION TYPE (LOW NOISE AUDIO AMPLIFIER APPLICATIONS), alldatasheet.

Author: Mikami Gakora
Country: Romania
Language: English (Spanish)
Genre: Sex
Published (Last): 12 May 2013
Pages: 284
PDF File Size: 15.32 Mb
ePub File Size: 12.96 Mb
ISBN: 623-6-14238-129-4
Downloads: 1275
Price: Free* [*Free Regsitration Required]
Uploader: Kill

December 21, I’m bummed that Toshiba has discontinued these and not offered a replacement. Additionally, the monolithic dual construction of the LSJ and LSK provides better solutions for obtaining tighter Idss drain-source saturation current matching and improved thermal tracking than matching individual JFETs.

The main amplifer in the buffer will be a Forssell I’ve never purchased from them, so I can’t vouch for them as a company. I may be up for a few to make your order up After catasheet the Hardy document, it became clear that there would be a substantial improvement in noise performance by using a device like the monolithic LM bipolar dayasheet chip.

Should be able to get really low noise and offset with these.

AMB Laboratories DIY Audio

I’ll check them out. Started by analag The Lab. November 05, I can’t afford three per channel so I thought I could have a go at designing the input buffer part myself.

The LSJ is an ideal improved functional replacement for JFETs that have similar noise characteristics with reduced gate-to-drain capacitance. Thanks for the suggestions ratasheet when are you planning to buy some 2SKs? I guess I might be able to swing a hundred February 25, Datahseet use a pair of the 2SK single in place of the K all the time, and yes, I do buy them in 10k quanities.


When used together, the LSJ and LSK are ideal for differential input stages for amplifier, phono, and preamplifier designs. I will try to get a load of s before there all gone I’m guessing its a lot. Started by beatpoet Brewery. I was wondering if anyone knows of any JFET chips that feature a similiar number 50!

Fred if I may be so bold – I have been looking at your schematic and was datashheet how different the s are that I have?


It seems to me that all the good audio parts are being discontinued – don’t you find it worrying that you may not be able to build your in the near distant future? Thats excellent – just what I was wondering – thank you muchly! Or would a couple of 2SK still offer comparable noise performance compared to the LM?

And J for switching? Not that the makes a poor line level device Additional applications for the LSJ include voltage controlled resistors, thermal stable datssheet followers, datassheet and hold, and current matched sources. If it’s OK to provide scans of recent magazine articles I can provide.

2SJ74 Datasheet

Common picks by professionals: LIS is a U. So what else can be used when they are all gone?? I’m going to compare specs from the datasheets Currently I am concentrating stashing away a couple of hundred of 2SKs. Tom, I am looking at the November time frame to get one thousand.

I remember thinking something similar when reading the PDF. I was thinking the would be better suited to coupling to a low impedance mic in a preamplifier design Thanks for the tip Charlie! Please state the specific application in which you desire to use them. I was looking at the PRR’s thread suggesting using a 48V supply and I can’t find data sheets for the 2SK’s so can any of the suggested fets run this high? Linear Integrated Systems supplies pin for pin replacements for more than 2, discrete devices currently offered or discontinued by Interfet, Intersil, Micro Power Systems, Motorola, National, Fairchild, Toshiba, and Siliconix-Vishay.


May 21, Microphone amplifiers, phono preamplifiers, audio amplifiers and preamps, discrete low-noise operational amplifiers, battery-operated audio preamps, audio mixer consoles, acoustic sensors, sonic imaging, and instrumentation amplifiers, wideband differential amplifiers, high speed comparators, impedance converters, voltage controlled resistors, sample and hold, source followers.

I’m not asking for you to share any precious circuit diagrams, just curious what other features you have added? Recommended JFETs for audio and their application: Toll Free Phone: As a general rule how many JFets would one go through to get, say 20 pairs well matched? Hey Tamas – that sure sucks Tamas, let me know if you want a hand adding to your total buy of the 2SKs – I may be in for at that price if its not too much trouble.

Thanks a lot Fred! But I will be using the devices in hopefully an instrumentation based amp for line level buffering.