Fakes Toshiba 2N3773 photos ? - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State

Solid State Talk all about solid state amplification.

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 August 2007, 03:20 AM   #1
aldovan is offline aldovan  Brazil
diyAudio Member
 
Join Date: Jul 2005
Location: Curitiba
Default Fakes Toshiba 2N3773 photos ?

Anyone have photos of fakes Toshiba 2N3773 ?
I get some and for me this is genuine.
True photos is fine, too.

Thanks,

Aldovan
  Reply With Quote
Old 15th August 2007, 08:49 AM   #2
djk is offline djk
diyAudio Member
 
djk's Avatar
 
Join Date: Feb 2001
Location: USA
ESP took their photos down.

If it says 'Toshiba' and 2N3773 it's probably a fake.

I got some of these fakes a few years ago and the amplifiers I put tem in wouldn't run more than an hour or two before failing again.

I only buy ON Semiconductor from an authorized distributor and only in the original 100 lot packaging. Cheaper in the long run.
__________________
Candidates for the Darwin Award should not read this author.
  Reply With Quote
Old 15th August 2007, 10:09 AM   #3
diyAudio Member
 
destroyer X's Avatar
 
Join Date: Feb 2004
Location: Recife - Brasil Northeast
Default The ones painted red over the case, you can remove paint using your nails

Those are fake...clearly fake.... ink quality is bad...they have no weigth...alike empty cases.

Those ones, are so clearly fakes that i can imagine that they could paint "FAKE" into the case...so obvious they are.

They also are cheap..so invitation to the ones want "to have advantage" to be fooled.... some of them deserve that, because they try to buy things by 1/4 of the price, they deserve another fox to eat the fox.

2N3773 are "heavy duty" transistors..can hold 30 amperes or more...also a good maximum voltage...they are heavy into construction too.... the case is not ligth aluminium...just holding it you feel if they are fake or not.

Observe the image... one of our brasilian kits..costing 25 dollares... can those transistors not be fake, when the total price is low this way?

regards,

Carlos
Attached Images
File Type: jpg brazilian kit... 25 dollares each..jpg (52.2 KB, 1866 views)
__________________
This Sunday assemble a toy amplifier....a good fun to your weekend; https://www.youtube.com/watch?v=yk0qvkwsAOY
  Reply With Quote
Old 15th August 2007, 10:29 AM   #4
diyAudio Member
 
destroyer X's Avatar
 
Join Date: Feb 2004
Location: Recife - Brasil Northeast
Default You can see those ones into the E Bay.


Even selling in big quantities.... one dollar for each one is really a very low price.

Do you trust they are real?.... or fake?

regards,

Carlos
Attached Images
File Type: jpg less than dollar.jpg (31.4 KB, 1739 views)
__________________
This Sunday assemble a toy amplifier....a good fun to your weekend; https://www.youtube.com/watch?v=yk0qvkwsAOY
  Reply With Quote
Old 15th August 2007, 10:43 AM   #5
diyAudio Member
 
Join Date: Nov 2002
Did Toshiba ever make a 2N3773?

I don't think so..
  Reply With Quote
Old 15th August 2007, 11:32 AM   #6
djk is offline djk
diyAudio Member
 
djk's Avatar
 
Join Date: Feb 2001
Location: USA
That's the point, I don't think Toshiba ever made parts with the JEDEC numbering system.

Another point:

Remember those Solitron 2N3773s I gave you?

They're hometaxial, fine for linear power supplies, but stone slow for amplifiers. The current shoot-through when the amplifier clipped was really bad.

We need epitaxial 2N3773s for amplifiers (4Mhz).

Carlos:

The one on the right is an obvious fake, wrong date code for a Motorola part, and the markings are rotated by 90*, who knows about the other one?

Since it is a quasi-comp amp, they could get genuine ON Semiconductor MJ15015 (180W SOA at 60V) for only $1.13 each.

If you wanted to go all out, the MJ21195/96 are only $1.86 each.

__________________
Candidates for the Darwin Award should not read this author.
  Reply With Quote
Old 15th August 2007, 03:02 PM   #7
diyAudio Member
 
destroyer X's Avatar
 
Join Date: Feb 2004
Location: Recife - Brasil Northeast
Default I miss those old folks a lot!... they were very good guys.


Attached,

Carlos
Attached Images
File Type: jpg 2n3055h_rca.jpg (77.3 KB, 1579 views)
__________________
This Sunday assemble a toy amplifier....a good fun to your weekend; https://www.youtube.com/watch?v=yk0qvkwsAOY
  Reply With Quote
Old 15th August 2007, 03:41 PM   #8
diyAudio Member
 
Gold_xyz's Avatar
 
Join Date: Dec 2005
Location: Italy
Hi

My only 2N3773 Toshiba...
To check if it is a fake I should open it

Click the image to open in full size.Click the image to open in full size.Click the image to open in full size.
Click the image to open in full size.Click the image to open in full size.Click the image to open in full size.
__________________
My English originates from here
  Reply With Quote
Old 15th August 2007, 03:52 PM   #9
aldovan is offline aldovan  Brazil
diyAudio Member
 
Join Date: Jul 2005
Location: Curitiba
Default This is fake , too !!!

Mine is the same of photo.
I open and the chip is very small.
  Reply With Quote
Old 15th August 2007, 03:58 PM   #10
jaycee is offline jaycee  United Kingdom
diyAudio Member
 
Join Date: Apr 2004
Location: Norwich, UK
It is a fake... Toshiba have confirmed that they have never manufactured ANY "2N" devices, and not the 2N3773.
  Reply With Quote

Reply


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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
A simple stereo Amp aroud a 2N3773 mjarve Solid State 33 31st March 2013 10:55 PM
Toshiba 2SC3281/2SA1302 - Are these fakes? kec Solid State 90 9th December 2012 09:00 PM
Pass amp with 2n3773? Tazzy Pass Labs 12 26th May 2011 02:30 AM
more fakes ..... east electronics Solid State 10 14th September 2008 02:33 PM
Possible Fakes? Plz take a look! stigla Solid State 4 4th July 2003 07:18 PM


New To Site? Need Help?

All times are GMT. The time now is 03:35 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright ©1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2