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Old 9th January 2013, 02:07 AM   #911
6L6 is offline 6L6  United States
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zoe - to clarify, (which buzz was touching on) do you mean 24v rails or a 24v transformer?

An 18v+18v (alternatively 36v centertapped) transformer will get you 24v rails.

a 24+24v (or 48v centertapped) transformer will get you 32v rails.
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Old 9th January 2013, 02:18 AM   #912
zoe is offline zoe  United States
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Yes that's it thank you 6L6 if I allow the angle to go under the trany attach to the bottom this should save room, still have to make sure that it doesn't interfere with the amp boards or make it hum.
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Old 9th January 2013, 02:44 AM   #913
zoe is offline zoe  United States
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I think I would have been fine with a smaller transformer say down to 600va dual secondary.It was just a little more for the bigger one. I read that multiplying the rail v by .75 will approximate the secondary voltage needed.There is different ways to accomplish the same things.
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Old 9th January 2013, 08:23 AM   #914
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here you can see 11" wide x 50" deep bottom with a 1000VA transformer.
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Old 9th January 2013, 01:36 PM   #915
nrg2009 is offline nrg2009  United States
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Zoe,

I'm thinking of using that same transformer, 1000VA which gives 4 pairs of 25V secondaries. The other option for Antek is a 600VA 2pair 28V.

I'm also thinking of mounting the toroid vertically in the front. I found a good picture of an example on how to do that (very nice build photo from someone at the forum here).

How much power would the F5Tv2 make with that Antek toroid?
Well, 25V * 1.4 = 35V DC
and 25V * 1.3 = 32.5V DC --> Is my understanding correct? It seems like this is right where it needs to be, correct?
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Last edited by nrg2009; 9th January 2013 at 01:43 PM. Reason: addition
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Old 9th January 2013, 01:51 PM   #916
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2x25V sec transformers fits v2 very good.
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Old 9th January 2013, 02:03 PM   #917
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NRG, the 1000VA unit, just take the same + wires and solder or whatnot together, and same with -, and you got a 1000VA tranny with 500VA each side. Double current ya!
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Old 9th January 2013, 02:07 PM   #918
BigE is offline BigE  Canada
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Quote:
Originally Posted by zoe View Post
These are the heatsinks I plan to use on my F5T V2 build.
I bought these on ebay maybe there to big.
Does the seller have more? I really like them! Is that strapping them together your work?
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Old 9th January 2013, 03:04 PM   #919
Renron is offline Renron  United States
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Another EASY way to support mounting a transformer on end is to use "L" shaped shelf bracket. This is a picture of a construction metal angle brace. Simpson Strong-Tie.
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Last edited by Renron; 9th January 2013 at 03:12 PM. Reason: Removed incorrect example. Sorry.....
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Old 9th January 2013, 03:06 PM   #920
6L6 is offline 6L6  United States
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Use ONLY ONE angle bracket.

EDIT - your post was fixed, thanks.

Last edited by 6L6; 9th January 2013 at 03:30 PM.
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