Hard to find diode... - diyAudio
Go Back   Home > Forums > Design & Build > Parts

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

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 24th December 2003, 04:33 PM   #1
Netlist is offline Netlist  Belgium
diyAudio Moderator Emeritus
 
Netlist's Avatar
 
Join Date: Jan 2003
Default Hard to find diode...

Anyone heard about a double diode DZ89052?
It comes from the bias circuit of a Peavey CS800 amp.
Of course I can order it at Peavey but it might take 6 weeks.
More info written on the diode:
DZ89052
2B MSC
Drawing:
---->|->|----
Looks like a normal 1N4007.

Thanks

/Hugo - who wishes everybody a Merry Christmas.
  Reply With Quote
Old 24th December 2003, 04:38 PM   #2
diyAudio Member
 
Tube_Dude's Avatar
 
Join Date: Mar 2002
Location: Aveiro-Portugal
Hi Hugo!

From the prefix DZ maybe a Zenner diode!!!

Merry Christmas
__________________
Jorge
  Reply With Quote
Old 25th December 2003, 09:57 AM   #3
Netlist is offline Netlist  Belgium
diyAudio Moderator Emeritus
 
Netlist's Avatar
 
Join Date: Jan 2003
Thanks Jorge
From the schematic and what I measure it's not a Zener.
Like many Peavey parts, I think it's made exclusively for them.
I still have one spare and will order a few more. For now I can fix the amp.

/Hugo
  Reply With Quote
Old 25th December 2003, 11:43 AM   #4
Banned
 
Join Date: Nov 2002
Location: Adelaide, Australia
Send a message via MSN to SkinnyBoy
wouldn't it jut be the same as 2 diodes in series?
  Reply With Quote
Old 25th December 2003, 12:29 PM   #5
Netlist is offline Netlist  Belgium
diyAudio Moderator Emeritus
 
Netlist's Avatar
 
Join Date: Jan 2003
Right now I'm testing with two 1N4006 in series.
If the bias behaves on the test bench for a few days I might leave it as is.
But first I want him to cook a few hours on the resistor load

/Hugo
  Reply With Quote
Old 9th January 2004, 08:22 PM   #6
moamps is offline moamps  Croatia
diyAudio Member
 
Join Date: Oct 2002
Location: Croatia
Quote:
Originally posted by Netlist
From the schematic and what I measure it's not a Zener.
Like many Peavey parts, I think it's made exclusively for them.
I still have one spare and will order a few more. For now I can fix the amp.
Hi Hugo,

I have one "dead" Peavey CS800 and need to fix it. According to your posts, you have the schematic for this amp. Is there any chance you could send me the schematic (by post or e-mail)?

Thanks in advance
  Reply With Quote
Old 9th January 2004, 10:19 PM   #7
diyAudio Member
 
Join Date: Sep 2002
Location: Sweden
Hugo,

I suppose the diode is defective, or assumed so, so you can't
measure it. However, unless it is a monoblock, perhaps you
could desolder the same diode from the other channel and
measure if it has a characteristic like two diodes in series?
If so, I suppose you could find two diodes that mimic the
same behaviour and use these.
  Reply With Quote
Old 4th February 2004, 08:31 PM   #8
Netlist is offline Netlist  Belgium
diyAudio Moderator Emeritus
 
Netlist's Avatar
 
Join Date: Jan 2003
Quote:
Originally posted by Christer
Hugo,

I suppose the diode is defective, or assumed so, so you can't
measure it. However, unless it is a monoblock, perhaps you
could desolder the same diode from the other channel and
measure if it has a characteristic like two diodes in series?
If so, I suppose you could find two diodes that mimic the
same behaviour and use these.
Thanks Christer,
Indeed they measure like two series diodes and on the schematic they are drawn like that too.
So the two 1N4006's did the job, bias was ok after warming up and the amp withstood a nice little live performance last week.

/Hugo
  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
Laser KSS-273 B, Hard To Find munja Digital Source 0 15th July 2007 09:16 PM
Hard to find transistor... pflodin Solid State 22 21st December 2006 06:46 AM
WTB hard to find transistors mmerig Swap Meet 1 24th January 2006 06:55 PM
Hard to find transistor... pflodin Parts 2 2nd August 2004 07:33 AM
Hard to find parts guitargully Parts 3 16th January 2004 04:57 AM


New To Site? Need Help?

All times are GMT. The time now is 05:44 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