Welcome Guest! To enable all features please Login or Register.

Notification

Icon
Error

Login


Options
View
Go to last post Go to first unread
MrMajestic  
#1 Posted : Thursday, April 2, 2009 8:11:04 AM(UTC)
MrMajestic

Rank: Member

Groups: Member
Joined: 5/21/2007(UTC)
Posts: 150
Location: Sweden

Was thanked: 2 time(s) in 2 post(s)
What would be the bare minimum VA rating of each transformer powering the Buffalo32 analog/digital supply plus dual mono IVYs? Would three 7VA transformers be enough?
Russ White  
#2 Posted : Thursday, April 2, 2009 10:47:00 AM(UTC)
Russ White

Rank: Administration

Groups: Administration, Customer
Joined: 10/24/2006(UTC)
Posts: 3,979
Location: Nashville, TN

Thanks: 25 times
Was thanked: 89 time(s) in 83 post(s)
I will publish the current demands of each cct soon. From that you will know if you have a big enough transformer for each.

Cheers!
Ryss
MrMajestic  
#3 Posted : Thursday, April 2, 2009 10:48:40 AM(UTC)
MrMajestic

Rank: Member

Groups: Member
Joined: 5/21/2007(UTC)
Posts: 150
Location: Sweden

Was thanked: 2 time(s) in 2 post(s)
Russ White wrote:
I will publish the current demands of each cct soon. From that you will know if you have a big enough transformer for each.

Cheers!
Ryss


Great, thanks.
Brian Donegan  
#4 Posted : Thursday, April 2, 2009 11:12:01 AM(UTC)
Brian Donegan

Rank: Administration

Groups: Administration, Customer
Joined: 10/24/2006(UTC)
Posts: 2,868
Location: Massachusetts, USA

Thanks: 2 times
Was thanked: 141 time(s) in 134 post(s)
Quote:
Cheers!
Ryss


Dude, if you are going to change your name, you should let me know. :)
JonP  
#5 Posted : Thursday, April 2, 2009 9:50:37 PM(UTC)
JonP

Rank: Member

Groups: Member
Joined: 4/3/2008(UTC)
Posts: 4
Location: Irvine, CA

Well, I can tell you what is about the absolute minimum you can get away with...

I got a couple of 1.6VA transformers (Amveco) from DigiKey, they are little PC board mount encapsulated toroids. A 9V and a 15V, they are dual secondary, and they JUST do the job. I don't have the part numbers now, but that would pin them down for you.

I'm seeing about 20VAC on both sides of the 15V one, driving the IVY, and the 9V is running about 10.7VAC and 12VAC for the Buffalo 6VDC and 6.5VDC. So, there's a decent amount of headroom. Its not like it's an amp... even playing loud the load only changes a fraction.

I'm not following the audiophile "use at least 2X" rule of thumb though... Shame on you Ah well..

Anyway, that's probably the lowest you can safely get away with.

Edit--- Oops... I forgot to say I'm using the original Buffalo and IVY. Have to defer to Russ and Brian on what difference in current draw there may be.

Edited by user Thursday, April 2, 2009 9:52:56 PM(UTC)  | Reason: Not specified

Rss Feed  Atom Feed
Users browsing this topic
GuestUser
Similar Topics
Alternate source for the power transformers? (Buffalo DAC)
by thomaspf 12/24/2008 12:20:11 PM(UTC)
Forum Jump  
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.