18w plexi layout - why 475V filter caps?
Moderators: CurtissRobin, colossal, zaphod_phil, Daviedawg, Graydon
-
- Unrated
- Posts: 10
- Joined: Mon 09/23/19 12:15 pm
18w plexi layout - why 475V filter caps?
Hello,
i am building a 18W plexi following the 18w plexi layout.
I wonder why the 2 last filter caps are 475v : is it a typo ? 450v or even 400v should be enough here ?
thanks
i am building a 18W plexi following the 18w plexi layout.
I wonder why the 2 last filter caps are 475v : is it a typo ? 450v or even 400v should be enough here ?
thanks
0 x
- crgfrench
- Frequent poster
- Posts: 827
- Joined: Fri 04/27/18 3:02 am
Re: 18w plexi layout - why 475V filter caps?
That's probably just what was available for the can cap.
Like this one which is 500V: https://www.tubedepot.com/products/jj-c ... x-32f-500v
Like this one which is 500V: https://www.tubedepot.com/products/jj-c ... x-32f-500v
0 x
-
- Unrated
- Posts: 10
- Joined: Mon 09/23/19 12:15 pm
Re: 18w plexi layout - why 475V filter caps?
it's not a cap can, it's the axial cap for the first tube
1 x
- crgfrench
- Frequent poster
- Posts: 827
- Joined: Fri 04/27/18 3:02 am
Re: 18w plexi layout - why 475V filter caps?
Oh right I see that sorry I was looking at the FIRST 2 caps!
The layout is slightly different from the schematic.
In the schematic the 3 axials are spec'd at 450V (see image).
Probably whoever drew the layout just had some 475s on hand.
Either 450, 475 or 500V would be fine, NBD.
The layout is slightly different from the schematic.
In the schematic the 3 axials are spec'd at 450V (see image).
Probably whoever drew the layout just had some 475s on hand.
Either 450, 475 or 500V would be fine, NBD.
You do not have the required permissions to view the files attached to this post.
0 x
- crgfrench
- Frequent poster
- Posts: 827
- Joined: Fri 04/27/18 3:02 am
Re: 18w plexi layout - why 475V filter caps?
For the axials I'd use either
https://tubedepot.com/products/sprague-atom-20uf-500v
or
https://tubedepot.com/products/f-and-t- ... -22uf-500v
it's fine to go to 22uF here, and the F&Ts are a lot less expensive than the Spragues.
For the can I'd go with the JJ.
https://tubedepot.com/products/jj-can-c ... x-32f-500v
https://tubedepot.com/products/sprague-atom-20uf-500v
or
https://tubedepot.com/products/f-and-t- ... -22uf-500v
it's fine to go to 22uF here, and the F&Ts are a lot less expensive than the Spragues.
For the can I'd go with the JJ.
https://tubedepot.com/products/jj-can-c ... x-32f-500v
0 x