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Rare Bird
05-09-2013, 08:11
Commrades
Looks for source for lagit BB Op-Amp OPA2604AP, ive seen a couple but can't trust where they originate..Does anyone know where i can get one from?

Ali Tait
05-09-2013, 10:31
How about Farnell mate? Should be good from them.

http://uk.farnell.com/texas-instruments/opa2604ap/ic-op-amp-dual-fet-ip-2604-dip8/dp/1097431?whydiditmatch=rel_3&matchedProduct=1265233

istari_knight
05-09-2013, 13:49
LittleDiode sell genuine parts but can be flipping expensive... http://www.littlediode.com/product.php?productid=105786

OPA2134 is also quite good http://www.littlediode.com/components/OPA2134PA.html

... Very odd, They are nearly half the price from their eBay shop :scratch: http://www.ebay.co.uk/itm/OPA2604AP-Integrated-Circuit-x-1-pieces-/160937544568?pt=UK_BOI_Electrical_Components_Suppl ies_ET&hash=item2578a00b78

6L6
10-09-2013, 16:12
http://www.digikey.com/product-detail/en/OPA2604AP/OPA2604AP-ND/251143

http://www.mouser.com/ProductDetail/Texas-Instruments/OPA2604AP/?qs=sGAEpiMZZMtCHixnSjNA6Mrdwin7F8A2umueo293DkI%3d

There is no doubt of either of those suppliers selling anything but genuine. (That particular opamp is a current TI product, genuine should be no issue, really...)

istari_knight
10-09-2013, 20:10
Could also be interesting :eyebrows:

http://www.ebay.co.uk/itm/Valab-OP01-Discrete-Dual-Opamp-Module-JFET-Discrete-Opamp-for-Dual-Channels-/300865149274?pt=US_Amplifier_Parts_Components&hash=item460cf5d95a

Rare Bird
10-09-2013, 20:13
Thanks you lot i have got one.

James: i cannot take modern electronics with op amps serious it just not my bag, hence i would not pay that much for something like that..This Headphone amp thing is only to use with the laptop & HRT streamer whilst online..

AlexM
11-09-2013, 08:21
Could also be interesting :eyebrows:

http://www.ebay.co.uk/itm/Valab-OP01-Discrete-Dual-Opamp-Module-JFET-Discrete-Opamp-for-Dual-Channels-/300865149274?pt=US_Amplifier_Parts_Components&hash=item460cf5d95a

James,

The quality of the soldering on that module looks shocking!. I'd be embarassed to offer something with hand-soldered joints looking that bad...

Alex

istari_knight
11-09-2013, 09:42
James,

The quality of the soldering on that module looks shocking!. I'd be embarassed to offer something with hand-soldered joints looking that bad...

Alex

Nah its not too bad considering... I've seen far worse on pre-assembled amplifier modules from China. I suspect they'd be happy to supply the unpopulated boards for the buyer to solder him/herself.

I'm toying with the idea of trying one as the Burson equivalent is £80.

StanleyB
11-09-2013, 09:51
Do you mean the Burson opamps? I got some that I need to get rid of.

DaveK
11-09-2013, 10:27
Do you mean the Burson opamps? I got some that I need to get rid of.

Hi Stan,
I might be interested in up to 3 of these myself. Can you advise me of the price please?
Dave.

StanleyB
11-09-2013, 13:22
Hi Dave, email me when you got time. I have to dig out the parts holding bins to search for the containers that the opamps came in and are stored in. I only have two though.

Yomanze
12-09-2013, 08:48
I don't see the point in "discrete" op amps, they're still op amps... with a quality IC you get far far far better 'component' matching, much shorter signal paths and better thermal tracking.

istari_knight
12-09-2013, 09:13
I'm yet to hear one in action so cant really comment... I would never consider spending £80 on an 'opamp' discrete or otherwise but those £30 ones did make me curious.