I received mine yesterday. All good. Thanks for all the hard work and so much extra effort you put into this.
I received mine today, and as Wealas say, Thanks for all the hard work and so much extra effort you put into this.
Read post #117 very carefully :
https://www.diyaudio.com/community/...smd-folded-cascode-cen-iv.390857/post-7401418
Patrick
https://www.diyaudio.com/community/...smd-folded-cascode-cen-iv.390857/post-7401418
Patrick
LT3045 / LT3094 regulators are critical on layout and component choice.
You should study datasheet carefully.
They give you all information there.
For example you should only use Murata GJ8 series MLCC's, and Susumu thin film resistors.
Many commercial modules are not following datasheet instructions.
Best to DIY yourself.
Patrick
You should study datasheet carefully.
They give you all information there.
For example you should only use Murata GJ8 series MLCC's, and Susumu thin film resistors.
Many commercial modules are not following datasheet instructions.
Best to DIY yourself.
Patrick
We've had a few queries on power supplies - unsurprising given the advice already given in earlier posts.
Personally I have used 2 supplies with success:
1. Diyinhk low noise supply - based on 2 LT3045 tied at the output to give bipolar supply. This supply is long since replaced I believe, and as EUVL has mentioned above, please do verify layout and components if buying something and not DIYing yourself. With this type of arrangement you must have 2 separate secondaries in the transformer.
2. A supply loaned to me by EUVL to help in testing. It is a true complementary supply using both LT3045 and LT3094 and are regulators only - a pre-regulated supply is needed.
Personally I have used 2 supplies with success:
1. Diyinhk low noise supply - based on 2 LT3045 tied at the output to give bipolar supply. This supply is long since replaced I believe, and as EUVL has mentioned above, please do verify layout and components if buying something and not DIYing yourself. With this type of arrangement you must have 2 separate secondaries in the transformer.
2. A supply loaned to me by EUVL to help in testing. It is a true complementary supply using both LT3045 and LT3094 and are regulators only - a pre-regulated supply is needed.
Would EUVL be willing to share the boards/artwork for the LT3045/LT3094 regulators? I purchased the (new) DIYinHK solutions but it would be nice to have something vetted for components as valuable as these.
If there is enough interest, Fran can organise a GB for you.
They are more expensive than normal, because the shop charge extra for the small size (<15mm in any dimensions)
Patrick
They are more expensive than normal, because the shop charge extra for the small size (<15mm in any dimensions)
Patrick
Please indicate your interest here if you are interested in the LT3045/3094 boards..... realistically we need a minimum level of interest.....
https://www.diyaudio.com/community/...94-pcb-ref-smd-fc-cen-iv.402297/#post-7427394
https://www.diyaudio.com/community/...94-pcb-ref-smd-fc-cen-iv.402297/#post-7427394