Weidro OP AMP

afxdave · 21st May 2004, 01:07 AM

I've got an old Numark DJ mixer (PPD model MMX 1000) with a bunch of these in the circuit. The one in the power supply smoked and cracked open and needs to be replaced. Here it is:

Manufacturer: JRC

Type: 2041DD

Any help with a source, or for an equivalent would be great. Numark doesn't know anything about this mixer since it's over 15 years old.

Alcaid · 21st May 2004, 11:26 AM

According to;

http://www.onsemi.com/site/products/...e=50&opn=2041D

it looks like it is a pdip dual op-amp. Without knowing the circuit it's in you could propably use a OPA2134 or similar. Install a socket so you can test different op-amps without soldering.

matjans · 23rd May 2004, 02:21 PM

it's not really a weird opamp. It's manufactured by the Japan Radio company (JRC), which has changed it's name to New Japan Radio (NJR or NJM) which is probably why you couldn't find it.

datasheet can be found here

21st May 2004, 01:07 AM	#1
afxdave diyAudio Member Join Date: Jan 2004 Location: West Hartford, CT	Weidro OP AMP I've got an old Numark DJ mixer (PPD model MMX 1000) with a bunch of these in the circuit. The one in the power supply smoked and cracked open and needs to be replaced. Here it is: Manufacturer: JRC Type: 2041DD Any help with a source, or for an equivalent would be great. Numark doesn't know anything about this mixer since it's over 15 years old.

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21st May 2004, 11:26 AM	#2
Alcaid diyAudio Member Join Date: Nov 2003 Location: Klepp	According to; http://www.onsemi.com/site/products/...e=50&opn=2041D it looks like it is a pdip dual op-amp. Without knowing the circuit it's in you could propably use a OPA2134 or similar. Install a socket so you can test different op-amps without soldering.

23rd May 2004, 02:21 PM	#3
matjans diyAudio Member Join Date: Aug 2003 Location: Utrecht, NL	it's not really a weird opamp. It's manufactured by the Japan Radio company (JRC), which has changed it's name to New Japan Radio (NJR or NJM) which is probably why you couldn't find it. datasheet can be found here

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