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 10th May 2003, 11:35 PM   #1
Account Disabled
 
Join Date: Apr 2003
Location: US
Default replacement for 2sb649/2sd669

I need a set of npn/pnp driver transistors in a 55-60 vdc applications (so the tip31/32 twin is out). originally the schematics used 2sb649/2sd669 but digikey doesn't have them so I am looking for alternatives here.

The transistors will be driving 3-4 mosfets, BTW.

Any suggestions? Thanks in advance.
  Reply With Quote
Old 11th May 2003, 02:14 PM   #2
moamps is offline moamps  Croatia
diyAudio Member
 
Join Date: Oct 2002
Location: Croatia
Hi,

2SA1837, 2SC4793

Regards
  Reply With Quote
Old 12th May 2003, 11:55 PM   #3
rljones is offline rljones  United States
diyAudio Member
 
Join Date: Mar 2001
Location: california
millwood,

http://www.bdent.com/ stocks the pieces you are looking for.

regards, robert
  Reply With Quote
Old 13th May 2003, 12:15 AM   #4
Account Disabled
 
Join Date: Apr 2003
Location: US
thanks, guys. That's great.
  Reply With Quote
Old 13th May 2003, 12:53 AM   #5
rljones is offline rljones  United States
diyAudio Member
 
Join Date: Mar 2001
Location: california
the 2sb649/2sd669 driving output mosfets sounds like a randy slone amp. he seems to use them in many of his books; nice fellow.
  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
Equiv. Parts: 2SD669, 2SB649 Rarkov Parts 53 6th January 2014 06:42 PM
Alternatives to 2SD669 and 2SB649 transistors Si992 Solid State 13 26th February 2007 09:11 PM
Oh Those 2SB649 & 2SD669's Where to get? obx Parts 2 8th June 2004 02:01 AM
i want the datasheet of 2sd669 and 2sb649 smyg Chip Amps 2 29th February 2004 12:50 PM
2sb649/2sd669 bmcevers Solid State 2 11th August 2003 06:30 AM


New To Site? Need Help?

All times are GMT. The time now is 08:20 PM.


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