NE5530N op amp or substitute? - Page 2 - 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 6th June 2007, 03:02 AM   #11
diyAudio Member
 
FastEddy's Avatar
 
Join Date: Jun 2006
Location: North Californie
" Match , Like No Data NE5532(4) NE5533(1) NE5534(5) NE5535(1) NE5537(1) NE5539(2) ..." From http://www.alldatasheet.com/view.jsp?Searchword=NE5530D ...

http://www.fairchildsemi.com/ds/NE%2FNE5532.pdf ... is a pin for pin substitution for the '5530.
http://focus.ti.com/docs/prod/folders/print/ne5532.html ( http://focus.ti.com/lit/ds/symlink/ne5532.pdf ) ... is a pin for pin substitution, and some free samples are available.
http://www.analog.com/en/prod/0,,AD8066,00.html ( http://www.analog.com/UploadedFiles/...D8065_8066.pdf ) ... is a pin for pin replacement w/ better specs IMOP.
http://focus.ti.com/docs/prod/folder...t/opa2134.html ( http://focus.ti.com/lit/ds/symlink/opa2134.pdf ) ... is a pin for pin replacement w/ better specs IMOP. ... I'm currently using these in my "kitchen table" summing amp / sub woofer driver (see my icon to the left) ...
  Reply With Quote
Old 6th June 2007, 03:17 AM   #12
diyAudio Member
 
Join Date: Mar 2007
Location: Canandaigua, NY USA
So has anybody been able to find a datasheet for the 5530? There seem to be lots of them available, just not in small quantities or low minimum orders. The only summary I could find said it's a 3MHz dual with 150nA input current. In any normal app I wouldn't hesitate to sub it with any of the parts listed in the above post, but as part of a power amp, I'd be more cautious. A part with "better" specs might not be stable. Or it might work better than it ever worked before. You'd want to check for oscillations and such.
  Reply With Quote
Old 6th June 2007, 03:23 AM   #13
diyAudio Member
 
FastEddy's Avatar
 
Join Date: Jun 2006
Location: North Californie
" ... has anybody been able to find a datasheet for the 5530 ..."

" " Match , Like No Data, NE5532(4) NE5533(1) NE5534(5) NE5535(1) NE5537(1) NE5539(2) ..." From http://www.alldatasheet.com/view.jsp?Searchword=NE5530D ... that's what you get from a googler search for '5530 = no match / no data = ... although there may be something out there, I don't usually read the second page search results ... bad habit, but ...
  Reply With Quote
Old 6th June 2007, 09:50 AM   #14
Did it Himself
diyAudio Member
 
richie00boy's Avatar
 
Join Date: Nov 2003
Location: Gloucestershire, England, UK
Quote:
Originally posted by javey
I was replying to gold and others. QSC said 5530 was obsolete(and they are unless you order from the $300 minimum warehouses) and told me 5532's would not work. They did not make any suggestions as to what would,simply saying save yourself the hassle and buy a PLX.
I just can't see how they can say 5532 won't work. It's unity gain stable and has good power capabilities. You have confirmed the 5530 is a dual device, so all that's left really is the pinout. Maybe they were being lazy/arrogant and just want a new sale.

The only other possibility is that 5530 is a transconductance amplifier. Unlikely though. I say drop a 5532 in and see what happens.
__________________
www.readresearch.co.uk my website for UK diy audio people - designs, PCBs, kits and more.
  Reply With Quote
Old 6th June 2007, 02:56 PM   #15
javey is offline javey  United States
diyAudio Member
 
Join Date: Apr 2005
Location: Saginaw,MI
This is the unedited response cut and pasted from QSC's Thanh Nguyen who I also asked about what were the stock OT's and drivers.
"If itís not in good condition, I suggest buying a new RMX850 instead of restoring this amplifier. QSC Technical Services no longer service the A-Series amplifiers since they were discontinued in the early 1980s.
Note that ECG130/219 were not QSC parts; Op-amp NE5532 would not work properly in A32 circuitry and NE5530 is obsolete."

Thanks Eddie for all the info! I'll let you guys know as soon as I get my hands on these and throw them in.
  Reply With Quote
Old 6th June 2007, 03:38 PM   #16
diyAudio Member
 
FastEddy's Avatar
 
Join Date: Jun 2006
Location: North Californie
Javey: ... enough info to do it? ... How about this:

I own three QSC model 1400's, one of which I have gutted for the chassis and transformer and some hardware. All were working when they were removed from service as part of dance hall / house PA.

I intended to dispose of the other two 1400's, either to someone willing to pay shipping costs or into the dumpster ( ).

Do you want one? ... ~39 pounds each / ~ US$32.00 for UPS to Michigan ... email me.
  Reply With Quote
Old 6th June 2007, 06:27 PM   #17
diyAudio Member
 
Gold_xyz's Avatar
 
Join Date: Dec 2005
Location: Italy
Quote:
Originally posted by FastEddy
" Match , Like No Data NE5532(4) NE5533(1) NE5534(5) NE5535(1) NE5537(1) NE5539(2) ..." From http://www.alldatasheet.com/view.jsp?Searchword=NE5530D ...

http://www.fairchildsemi.com/ds/NE%2FNE5532.pdf ... is a pin for pin substitution for the '5530.
http://focus.ti.com/docs/prod/folders/print/ne5532.html ( http://focus.ti.com/lit/ds/symlink/ne5532.pdf ) ... is a pin for pin substitution, and some free samples are available.
http://www.analog.com/en/prod/0,,AD8066,00.html ( http://www.analog.com/UploadedFiles/...D8065_8066.pdf ) ... is a pin for pin replacement w/ better specs IMOP.
http://focus.ti.com/docs/prod/folder...t/opa2134.html ( http://focus.ti.com/lit/ds/symlink/opa2134.pdf ) ... is a pin for pin replacement w/ better specs IMOP. ... I'm currently using these in my "kitchen table" summing amp / sub woofer driver (see my icon to the left) ...
I agree at 100%

Surely the NE5530 can be replaced with the common amp-ops
There is perhaps need to replace some component.
When QSC AUDIO has abandoned the NE5530 It has modified the Schematics.
(To See QSC USA370
http://www.qscaudio.com/support/libr...ies/usa370.pdf
and QSC USA400
http://www.qscaudio.com/support/libr...ies/USA400.pdf
)

The following schematics (with NE5532) change :
Balancing Resistor R19-R20(A32) 22Ohms NF 1W
and increase R17-R18(A32) to 6.8 Ohms NF 1W

Also loop feedback of 2nd Amp-op is enough critical and
with the new high performances amp-op it can be oscillate.
__________________
My English originates from here
  Reply With Quote
Old 6th June 2007, 06:45 PM   #18
diyAudio Member
 
Gold_xyz's Avatar
 
Join Date: Dec 2005
Location: Italy
After resistors substitution I suggest to install a socket (if not present)
for amp-op and try also these :

http://www.national.com/ds.cgi/LF/LF353.pdf
http://www.national.com/ds.cgi/TL/TL082.pdf
__________________
My English originates from here
  Reply With Quote
Old 6th June 2007, 06:52 PM   #19
diyAudio Member
 
Gold_xyz's Avatar
 
Join Date: Dec 2005
Location: Italy
Quote:
Originally posted by FastEddy
Javey: ... enough info to do it? ... How about this:

I own three QSC model 1400's, one of which I have gutted for the chassis and transformer and some hardware. All were working when they were removed from service as part of dance hall / house PA.

I intended to dispose of the other two 1400's, either to someone willing to pay shipping costs or into the dumpster ( ).

Do you want one? ... ~39 pounds each / ~ US$32.00 for UPS to Michigan ... email me.


High power amplifier with class AB quality but with a compact and
light switching power supply PC-style..

I need to modify a PC-supply for +/-50 Vcc
__________________
My English originates from here
  Reply With Quote
Old 6th June 2007, 07:24 PM   #20
diyAudio Member
 
FastEddy's Avatar
 
Join Date: Jun 2006
Location: North Californie
" ... High power amplifier with class AB quality but with a compact and light switching power supply PC-style ..."

Oh contrare' ... These old QSC 1400 have a plain vanilla "brute force" type 1400 VA power supply with a very heavy transformer (~25 pounds) and regular full wave rectifiers & large electrolytic caps = +/- 76 VDC per output power rail and +/- 15 VDC for the first stage, protection & mute circuits === definately NOT a switching supply ( http://www.qsc.com/support/library/s...20One/1400.pdf ) ...

OF special interest here: The QSC 1400 uses the afore mentioned NE5532 and the first amplification stage ... ... and that's basically why I have junked one of the amps, saving the chassis & PS for a "better" amp board ( aussieamplifiers.com ... the NX500NL times two).

Also your english is quite passable ... no need to appologize for it at all. (Mine is not that great ... )
  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
AN630 Substitute s2kov Parts 9 27th November 2007 10:11 AM
LF357 J fet op amp substitute? Original Burnedfingers Solid State 1 20th October 2007 02:27 PM
2SD873 substitute ? garnet Parts 1 27th September 2007 09:32 AM
tr substitute dexter Solid State 5 29th April 2001 02:53 PM


New To Site? Need Help?

All times are GMT. The time now is 02:31 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