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Thread: OP AMPS |
   
New member Username: Fv333
Post Number: 4 Registered: Mar-06
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| Posted on Thursday, April 13, 2006 - 03:55 pm: |
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Can anyone tell me where i can buy AD826 op amps. Internet sites will do. I tried buying direct from Analog Devices but could not continue for lack of a VAT no. ! I require 3 of these op amps |
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Bronze Member Username: Ravbains
Melbourne Australia
Post Number: 33 Registered: Mar-06
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| Posted on Tuesday, April 18, 2006 - 11:56 am: |
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http://www.digikey.com ciao |
   
New member Username: Fv333
Post Number: 7 Registered: Mar-06
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| Posted on Wednesday, April 19, 2006 - 11:00 am: |
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Ravinder thanks alot mate,nice somebody took the time to help |
   
Bronze Member Username: Ravbains
Melbourne Australia
Post Number: 34 Registered: Mar-06
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| Posted on Wednesday, April 19, 2006 - 10:21 pm: |
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no worries Frank, you're welcome. Also, good luck with your op-amp work by the way. I having been using digikey since I am currently trying to get the parts together to mod my CD player. cheers Rav |
   
New member Username: Fv333
Post Number: 8 Registered: Mar-06
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| Posted on Friday, April 21, 2006 - 07:32 am: |
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Ravinder, excuse me for being slightly ignorant under the lid so to speak. I'm going to replace my 3 OPA2604 with AD826 duals (in my Shanling CD t-80) Is there a certain way(I know theres only two choices) they must go into the slots or one definate way and if so have you any idea which? Thanks! |
   
Bronze Member Username: Ravbains
Melbourne Australia
Post Number: 38 Registered: Mar-06
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| Posted on Friday, April 21, 2006 - 10:05 am: |
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Hi Frank, I believe that Shanling put their op-amps in sockets, so no soldering is required? (Please correct me if I am wrong here...) Okay when you look at the op-amp chip you normally see a semi-circular cut out in the body of the chip. See example image below:
When you install the new AD826 chips, make sure that the semi-circular cut out stays in the same orientation as the existing OPA627 chip you are replacing and all should be fine. Here is a sample image of a AD826 installed in a Yamaha CD player, you will see that the Analogue Devices AD826 chip also has the little semi-circular cut out I mentioned. (The way the chip is oriented in this image the cut-out is on the RHS.)
Apart from that there should not be a whole lot to it. You may want to follow anti-static procedures whilst handling the chips. Or worst case just touch something grounded like the kitchen sink, and don't wear those rubber soled shoes that always cause static shocks!! best of luck Rav |
   
Bronze Member Username: Ravbains
Melbourne Australia
Post Number: 39 Registered: Mar-06
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| Posted on Friday, April 21, 2006 - 10:09 am: |
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Frank, i my post I say: "When you install the new AD826 chips, make sure that the semi-circular cut out stays in the same orientation as the existing OPA627 chip you are replacing and all should be fine. " I meant to say: " When you install the new AD826 chips, make sure that the semi-circular cut out stays in the same orientation as the existing OPA2604 chip you are replacing and all should be fine." Sorry for any confusion Rav
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New member Username: Fv333
Cheshire
U.K.
Post Number: 9 Registered: Mar-06
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| Posted on Friday, April 21, 2006 - 11:32 am: |
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Rav', thanks alot for your help and pics etc... they haven't arrived yet but this will make it alot easier for me when they do! |
   
New member Username: Fv333
Cheshire
U.K.
Post Number: 10 Registered: Mar-06
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| Posted on Friday, April 21, 2006 - 11:36 am: |
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oh by the way your right, Shanlings op amps are housed in sockets. |
   
Gold Member Username: Nuck
Post Number: 2221 Registered: Dec-04
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| Posted on Friday, April 21, 2006 - 01:04 pm: |
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Those are 'service mounts', the holder or board should also show the notch. Never rely on printing. |