F5 Turbo Builders Thread - Page 92

6L6 · 9th January 2013, 02:07 AM

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.

zoe · 9th January 2013, 02:18 AM

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.

zoe · 9th January 2013, 02:44 AM

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.

AudioSan · 9th January 2013, 08:23 AM

here you can see 11" wide x 50" deep bottom with a 1000VA transformer.

nrg2009 · 01:43 PM

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?

AudioSan · 9th January 2013, 01:51 PM

2x25V sec transformers fits v2 very good.

Tea-Bag · 9th January 2013, 02:03 PM

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!

BigE · 9th January 2013, 02:07 PM

Quote:

Originally Posted by zoe

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?

Renron · 03:12 PM

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.
Ron

6L6 · 03:30 PM

Use ONLY ONE angle bracket.

EDIT - your post was fixed, thanks.

9th January 2013, 02:07 AM	#911
6L6 diyAudio Member Join Date: Oct 2010 Location: Denver, Colorado	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. __________________ llustrated Build Guides - Pass Pearl 1 - Pass B1 - - Pass F5 - Pearl 2 - -O2 HPA - - Pass F4

9th January 2013, 02:18 AM	#912
zoe diyAudio Member Join Date: May 2010 Location: Santa Rosa ca.	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. __________________ be good zoe

9th January 2013, 02:44 AM	#913
zoe diyAudio Member Join Date: May 2010 Location: Santa Rosa ca.	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. __________________ be good zoe

9th January 2013, 01:51 PM	#916
AudioSan diyAudio Member Join Date: Feb 2009 Location: Trondheim	2x25V sec transformers fits v2 very good. __________________ aleph P1.7 pre. F5 power amp. CDpro2(need DAC). Vivaldi8 speakers

9th January 2013, 02:03 PM	#917
Tea-Bag not politcally affiliated diyAudio Member Join Date: Feb 2006 Location: Kennebunk Blog Entries: 7	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! __________________ Salas Boards 2013 #2 CLICK HERE \| F6 Covertible PCB GB Boards Available \|DCB1 boards and KITS available PM\|SemiSouth R125, R100, R100A Available CLICK HERE \|F5TC Boards Sign UP CLICK HERE


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9th January 2013, 03:06 PM	#920
6L6 diyAudio Member Join Date: Oct 2010 Location: Denver, Colorado	Use ONLY ONE angle bracket. EDIT - your post was fixed, thanks. __________________ llustrated Build Guides - Pass Pearl 1 - Pass B1 - - Pass F5 - Pearl 2 - -O2 HPA - - Pass F4 Last edited by 6L6; 9th January 2013 at 03:30 PM.

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