Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Parts Where to get, and how to make the best bits. PCB's, caps, transformers, etc.

How to identify fake JFETs?
How to identify fake JFETs?
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 15th September 2019, 09:55 PM   #111
Cyberkul is offline Cyberkul  Norway
diyAudio Member
 
Join Date: Oct 2008
Quote:
Originally Posted by JeffYoung View Post
I've always had excellent service from John LaGrue (punkydawgs). I've bought tubes from him as well....
:-)
  Reply With Quote
Old 21st September 2019, 12:24 PM   #112
JeffYoung is offline JeffYoung  Ireland
diyAudio Member
 
JeffYoung's Avatar
 
Join Date: Jul 2017
Location: Ireland
How to identify fake JFETs?
Default 2SJ109s

Is one of these letterings fake and the other real (note the difference in the '1' and the '9'), or did Toshiba change their lettering at some point?

How to identify fake JFETs?-2sj109-pics-jpg
Attached Images
File Type: jpg 2SJ109 pics.jpg (149.3 KB, 85 views)
  Reply With Quote

Reply


How to identify fake JFETs?Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
How to identify Fake Transistors? Jrp27 Parts 20 22nd July 2019 07:18 AM
2SA1215 2SC2921, identify genuine and fake Sunmansli Solid State 10 15th May 2018 03:51 PM
How to identify a fake Toshiba transistor? Audio Maniac Parts 1 7th July 2012 08:06 PM
Is there ANY way to identify a fake LM3886 before buying one ??? MrAdel1984 Chip Amps 9 4th April 2012 07:55 PM
how to identify fake transistors Wagener Solid State 4 6th May 2004 01:46 PM


New To Site? Need Help?

All times are GMT. The time now is 08:59 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Copyright ©1999-2019 diyAudio
Wiki