4558S inline op amp needed

Original Burnedfingers · 17th June 2006, 12:01 PM

Hi,

I have received an email from a member that is trying to locate a 9 pin inline 4558S op amp.

Is there a replacement number?

Thanks

Cobra2 · 17th June 2006, 05:28 PM

The 9-pin is just like a 8-pin, with an extra Vcc(+) connection.

Arne K

djk · 18th June 2006, 01:33 AM

You can 'dead-bug' an 8 pin dip. Bend four leads straight out and solder into the board. Tack short wires on the other and solder into the board.

Original Burnedfingers · 18th June 2006, 12:42 PM

Thank you Mr. DJK I was trying to find the guy a inline 9 pin so he could just replace the defective one he has.

anatech · 18th June 2006, 07:17 PM

Hi Joe,
Japanese parts vendors sell them too. Your friend should have no trouble getting that part. djk's suggestion is good in a pinch.

Sometimes they route power throught the chip (B+), you may have to jumper if this is the case.

-Chris

Cobra2 · 18th June 2006, 08:09 PM

Quad -> in-line

Arne K

Original Burnedfingers · 18th June 2006, 09:17 PM

Hi Chris,

I realize that djk's suggestion is good in a pinch. I was just trying to find a plug and play part for the guy that was looking for an exact replacement. I cannot seem to find a NTE replacement or anything else listed. Yes, you could use either a quad or a dual with some jumpers and provisions made for the extra sections.

anatech · 18th June 2006, 09:50 PM

Hi Joe,

Quote:

I cannot seem to find a NTE replacement or anything else listed.

I'll pretend I didn't see that.

Try http://pacificsemi.com/search.php (found it by searching NJM4558S) or some more local suppliers. Very common with Japanese service networks, just contact a warranty shop for one of them.

-Chris

Edit: another one but out of stock http://www.mcminone.com/search.asp?k...0&btnSubmit=GO

poobah · 18th June 2006, 09:57 PM

Cobra2,

Clever, very clever!

You should tie pins 1&2 - 7&8, then 3&5 to V+. Unused amps make for trouble.

anatech · 18th June 2006, 10:01 PM

Hi poobah,
You mean pins 1 to 2, 6 to 7 then 3 and 5 to ground.

I don't like tying inputs to supplies.

-Chris

17th June 2006, 12:01 PM	#1
Original Burnedfingers diyAudio Member Join Date: Nov 2002	4558S inline op amp needed Hi, I have received an email from a member that is trying to locate a 9 pin inline 4558S op amp. Is there a replacement number? Thanks

17th June 2006, 05:28 PM	#2
Cobra2 DIY ! diyAudio Member Join Date: Apr 2002 Location: Stavanger, Norway	Op-amp... The 9-pin is just like a 8-pin, with an extra Vcc(+) connection. Arne K __________________ Ars longa, vita brevis

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Inline Attenuator Help	Haoleb	Parts	5	9th August 2011 08:50 AM
Fireplug? (inline fuse)	kenpeter	Tubes / Valves	1	16th February 2009 09:34 PM
Inline Crossovers	Madmike2	Parts	4	24th May 2005 01:52 AM
replacing 4558s in SM Pro Audio PR8	composition4	Chip Amps	10	2nd February 2005 05:20 AM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	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

18th June 2006, 01:33 AM	#3
djk diyAudio Member Join Date: Feb 2001 Location: USA	You can 'dead-bug' an 8 pin dip. Bend four leads straight out and solder into the board. Tack short wires on the other and solder into the board.

18th June 2006, 12:42 PM	#4
Original Burnedfingers diyAudio Member Join Date: Nov 2002	Thank you Mr. DJK I was trying to find the guy a inline 9 pin so he could just replace the defective one he has.

18th June 2006, 07:17 PM	#5
anatech diyAudio Moderator Join Date: Jun 2004 Location: Georgetown, On	Hi Joe, Japanese parts vendors sell them too. Your friend should have no trouble getting that part. djk's suggestion is good in a pinch. Sometimes they route power throught the chip (B+), you may have to jumper if this is the case. -Chris

18th June 2006, 09:17 PM	#7
Original Burnedfingers diyAudio Member Join Date: Nov 2002	Hi Chris, I realize that djk's suggestion is good in a pinch. I was just trying to find a plug and play part for the guy that was looking for an exact replacement. I cannot seem to find a NTE replacement or anything else listed. Yes, you could use either a quad or a dual with some jumpers and provisions made for the extra sections.

18th June 2006, 09:57 PM	#9
poobah diyAudio Member Join Date: Nov 2005	Cobra2, Clever, very clever! You should tie pins 1&2 - 7&8, then 3&5 to V+. Unused amps make for trouble.

18th June 2006, 10:01 PM	#10
anatech diyAudio Moderator Join Date: Jun 2004 Location: Georgetown, On	Hi poobah, You mean pins 1 to 2, 6 to 7 then 3 and 5 to ground. I don't like tying inputs to supplies. -Chris

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)