L-Adapter

[Kiq8787]

What are critical connections if wiring this point to point? Or you think it should not be done at all, cause more noise?

It might be months before the PCB group buy goes through.

 

[Salas]

Can't answer that question. It takes making and measuring a specific point to point build map against the regular. I don't say it can't work decently if you try one.

 

[Kiq8787]

Ok, will wait it out. PCB is best.

 

[Kiq8787]

Do you know what filtering is on the mains of the ATX PSU?
Can I keep this filtering? Already has AC socket and switch.
Less wear on my arthritis hands.

I would just wire up the ends to the trafo.

 

[Salas]

Possibly varistors (MOVs) and a ferrite core in your picture. Not harmful.

 

[altsouza]

Do you know what filtering is on the mains of the ATX PSU?
Can I keep this filtering? Already has AC socket and switch.
Less wear on my arthritis hands.

I would just wire up the ends to the trafo.

Good idea to use the old Psu case as a new case for the LAdapter!
Does anyone know a online retailer that sells aluminum cases I can use in Ladapter ? That ships worldwide? I saw in ebay but they are kind o expensive!
They don’t need to be fancy.
Thanks

 

[Kiq8787]

Good idea to use the old Psu case as a new case for the LAdapter!
Does anyone know a online retailer that sells aluminum cases I can use in Ladapter ? That ships worldwide? I saw in ebay but they are kind o expensive!
They don’t need to be fancy.
Thanks

Only Ebay that I know of. Prices for the Chinese cases have gone up, including shipping prices.

Depends on your trafo size, you could stack two smaller cases?
The smaller chassis are usually free ship on Ebay.

 

[Kiq8787]

If I add a 5VDC 40mm Fan for the rpi4, does that defeat the clean power of the L Adaptor?

 

[altsouza]

Only Ebay that I know of. Prices for the Chinese cases have gone up, including shipping prices.



Depends on your trafo size, you could stack two smaller cases?

The smaller chassis are usually free ship on Ebay.

Thanks

 

[Kiq8787]

Good idea to use the old Psu case as a new case for the LAdapter!
Does anyone know a online retailer that sells aluminum cases I can use in Ladapter ? That ships worldwide? I saw in ebay but they are kind o expensive!
They don’t need to be fancy.
Thanks

Amazon ships to Brazil?

YaeCCC Aluminum Enclosure Metal Shell Electronic Project DIY Box Case for PCB Instrument Amplifier - 255 x 205 x 60mm / 10"x 8"x 2.36"(LxWxH) - - Amazon.com

 

[Salas]

If I add a 5VDC 40mm Fan for the rpi4, does that defeat the clean power of the L Adaptor?

Don't power anything else from the PSU's output than the Rpi itself. Electric motors are especially noisy.

 

[Salas]

And the generator is ok?

A friend was recently looking for a portable 2ch oscilloscope + gen tool and ordered this:

Hantek 3 in 1

 

[altsouza]

Amazon ships to Brazil?

YaeCCC Aluminum Enclosure Metal Shell Electronic Project DIY Box Case for PCB Instrument Amplifier - 255 x 205 x 60mm / 10"x 8"x 2.36"(LxWxH) - - Amazon.com

Yes , they do. I will see. Thanks

 

[altsouza]

A friend was recently looking for a portable 2ch oscilloscope + gen tool and ordered this:

Hantek 3 in 1

Hi,
Thank you. Does it also generate the appropriate signal?

 

[Salas]

"Amplitude: 2.5Vpp(50Ω): 5Vpp(High impedance)" so its enough. It also keeps the gen running after switching to scope.

 

[altsouza]

"Amplitude: 2.5Vpp(50Ω): 5Vpp(High impedance)" so its enough. It also keeps the gen running after switching to scope.

Very good. I will buy it. Thanks

 

[altsouza]

"Amplitude: 2.5Vpp(50Ω): 5Vpp(High impedance)" so its enough. It also keeps the gen running after switching to scope.

Which model?

 

[Salas]

2D42 or 2D72. 2C models don't have a generator shows the table in the brochure you posted. I couldn't find anything better value for your purposes, I hope you will find it useful. Gives you a fully developed digital multimeter mode as well.

 

[altsouza]

2D42 or 2D72. 2C models don't have a generator shows the table in the brochure you posted. I couldn't find anything better value for your purposes, I hope you will find it useful. Gives you a fully developed digital multimeter mode as well.

Thanks

 

[Salas]

Prefer 2D72 if you can. More bandwidth.