Go Back   Home > Forums > Source & Line > Analogue Source

Analogue Source Turntables, Tonearms, Cartridges, Phono Stages, Tuners, Tape Recorders, etc.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 29th January 2013, 07:56 AM   #1321
diyAudio Member
 
Join Date: Dec 2006
Location: Berlin
Default Fuse?

Hello,

I'm very happy with my paradise.

I've found no suggestions about the size/value of the fuse at the mains input.
I have a holder for 2 fuses there for both, + and -.

For testing I have two 2 amp. fuses in there, which are surely not the right value.

Best regards,
Christoph
  Reply With Quote
Old 29th January 2013, 09:10 AM   #1322
FdW is offline FdW  Netherlands
diyAudio Member
 
FdW's Avatar
 
Join Date: Feb 2009
Location: Both feet on the ground (near Gouda)
Quote:
Originally Posted by brozatus View Post
Hello,

I'm very happy with my paradise.

I've found no suggestions about the size/value of the fuse at the mains input.
I have a holder for 2 fuses there for both, + and -.

For testing I have two 2 amp. fuses in there, which are surely not the right value.

Best regards,
Christoph
PLEASE NOTE: This information is for the primary/mains-side of the device!

WARNING: BE VERRY CAREFULL WHEN WORKING ON MAINS CONNECTED CIRCUITS, ALWAIS UNPLUG FIRST!

The ‘Paradise’ system is using about 150mAac per supply, as there are 4 supply's this will be a total current of 600mAac.

When U are using a 28Vac transformer then this will work out at 600mAac * 28Vac = 17Watt, to this we allow some transformer losses and make it a nice 20Watts.

This 20Watts translates to (about) 100mA@220Vac or 200mA@110Vac.

Next what you need to do is find the transformer specifications; it will (most probably) specify a maximum primary current (that may be sustained indefinitely). The fuse you need to select has a value between 100mA@220Vac(200mA@110Vac) slow blow and the transformer specified maximum (also slow blow).

Practically, I would select a fuse 2 * the calculated value, that is 200mA@220Vac(400mA@110Vac), but it has to be below the maximum that is specified for the transformer.

All wiring on the primary/mains side of the system should be able to carry at the least this current, but preferably 5 times it (that is 1A@220Vac(2A@110Vac)).

These (above) are my 'ballpark'-guidelines this should be sufficient for any home audio appliance.

See also: http://www.optifuse.com/PDFs/FuseSel...Guide_RevA.pdf

Last edited by FdW; 29th January 2013 at 09:19 AM.
  Reply With Quote
Old 29th January 2013, 12:06 PM   #1323
diyAudio Member
 
Join Date: Dec 2006
Default psu: 2,2uF instead of 2,7uF ?

are 2,2 uF for the "counter oscillation caps" ok also? I dont have a scope and want to add them just to be shure. the 470pF I have in the right value.
tnx.
stefan
  Reply With Quote
Old 29th January 2013, 12:08 PM   #1324
diyAudio Member
 
analog_sa's Avatar
 
Join Date: Aug 2002
Location: Sofia
Quote:
Originally Posted by noelectrix View Post
are 2,2 uF for the "counter oscillation caps" ok also?
No.
  Reply With Quote
Old 29th January 2013, 12:24 PM   #1325
diyAudio Member
 
Join Date: Dec 2006
oh thank you
i got told there is no value like 2,7 to buy. now i saw it on the picture, there indeed is. rghhhhhh

thanks a lot
st.
  Reply With Quote
Old 29th January 2013, 12:34 PM   #1326
FdW is offline FdW  Netherlands
diyAudio Member
 
FdW's Avatar
 
Join Date: Feb 2009
Location: Both feet on the ground (near Gouda)
Quote:
Originally Posted by noelectrix View Post
oh thank you
i got told there is no value like 2,7 to buy. now i saw it on the picture, there indeed is. rghhhhhh

thanks a lot
st.
That is 2.2nF and 2.7nF, you will be fine with 2.2nF
  Reply With Quote
Old 29th January 2013, 12:41 PM   #1327
diyAudio Member
 
Join Date: Dec 2006
Thanks, so IŽll try them out tomorrow.

st.
  Reply With Quote
Old 29th January 2013, 01:30 PM   #1328
miepa is offline miepa  Austria
diyAudio Member
 
Join Date: Aug 2012
Default SMD cap, footprint 1206

Guys,
the SMD caps, footprint 1206 - C901, C901_1, C901_2, C902, C902_1, C902_2, C903, C903_1, C903_2

CAPS are available in FILM or CERAMIC - which one would be the better choice in the paradise

what are they for - are they really important??? because the manual says: THESE CAPS ARE OPTIONAL
  Reply With Quote
Old 29th January 2013, 02:58 PM   #1329
hesener is offline hesener  Germany
diyAudio Member
 
Join Date: Mar 2005
Location: Munich, Germany
Quote:
Originally Posted by miepa View Post
Guys,
the SMD caps, footprint 1206 - C901, C901_1, C901_2, C902, C902_1, C902_2, C903, C903_1, C903_2

CAPS are available in FILM or CERAMIC - which one would be the better choice in the paradise

what are they for - are they really important??? because the manual says: THESE CAPS ARE OPTIONAL
Please put ceramic caps. They are helpful in avoiding oscillations in the current mirrors, so if you do not have oscillations you can happily leave them out. As a safety measure, it doesnt hurt to put them in....
  Reply With Quote
Old 29th January 2013, 06:19 PM   #1330
diyAudio Member
 
Join Date: Dec 2006
Location: Berlin
@Frans,

thanks for great helping with the fuses values,

Christoph
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Paradise phono stage hesener Group Buys 1283 Yesterday 09:12 PM
DIY Paradise - Any good to buy from? gingerpimp0069 Vendor's Bazaar 7 21st June 2007 02:07 PM
DIY Paradise Charlize Jolojl Swap Meet 7 7th December 2006 06:42 AM
Diy Paradise! alexmoose Tubes / Valves 3 24th July 2006 04:37 AM
Another way to paradise ? Bernhard Pass Labs 3 8th August 2003 10:19 PM


New To Site? Need Help?

All times are GMT. The time now is 05:22 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright ©1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2