Powersuply Le Bong?

HDaudio · 10th July 2006, 08:11 AM

I Am, doing chema from Le Bong with Preampli phono but have some quets about powersuply :
- With power vontage 12v, and 24v pass to C-R-C how com to B+ 100V, havefun

HDaudio · 10th July 2006, 08:13 AM

Here:

HDaudio · 10th July 2006, 08:14 AM

So sorry !
Here:
Main power suply.

janneman · 27th July 2006, 06:05 AM

I guess your original question was on the power supply, and that is shown in your last schema. What it does is that first they take a small supply built into a power mains plug (also called wall-wart) to make 15VAC, that they rectify and stabilise to 12VDC.

The same (unrectified) 15VAC is used to power another wall-wart in reverse, in other words they input the 15VAC into the output of the wall-wart, which actually is the secondary of its transformer.
Then on the input of the wall-wart (actually the transformer primary) they take off about 120VAC. That can then be rectified etc for the 100 and/or 170VDC.

But to built this amp you don't need to built THIS power supply! Anything giving the required voltages would do.

Jan Didden

HDaudio · 27th July 2006, 07:15 AM

Thanh for anser..and helping me..!
Now iam change Shema for new powersuply.
Here :http://www.audiovnclub.net/forum/ind...e=post&id=7274
http://www.audiovnclub.net/forum/ind...e=post&id=7510
.........
And am thing good for my choice.
..File to big and am can not up to here, same like that:
Powersuply : B+ with VAC 230V120ma not CT>Van12X4 danaco with 1/2 diot 14004 out CT, and 10mf 350V>choke 8H200ma >10mf 350V>R 7,5 K>220mf350V>R7,5K>220mf350V, and 150K for va. I'm thinh am don't want to follow powersuyply from that! and same I'm do here, you thinh good ? fo not good? for my ofjcetion?
With H.. 12VAC not CT for ECC83, you thinh h use AC and DC?
Because once time I'm DIY H with AC but OK for my Line preampli.

HDaudio · 17th August 2006, 09:07 AM

And now Iam have to much Capacito ( Sangamo silvered ) From 10P come to 10,000,000P, may be mothan 100pc, but am dont no can use good for audio , of not?
Pleaser hepl me !
It there:

HDaudio · 14th February 2007, 03:12 AM

Exacly my Email Hiendheaven@fpt.vn.
OK! Im soud you my Preampli nealy ok.

HDaudio · 14th February 2007, 03:48 AM

Here my system .
Power mosfet SE IRF 150 monoblock mod from FL 99.
Firt time Preampli use 1 802S.

HDaudio · 14th February 2007, 03:51 AM

Full My system :

HDaudio · 14th February 2007, 03:54 AM

New main phono 12AX7x2, 12AU7:

27th July 2006, 06:05 AM	#4
janneman diyAudio Member Join Date: May 2002 Location: Where Germany, The Netherlands and Belgium meet Blog Entries: 6	I guess your original question was on the power supply, and that is shown in your last schema. What it does is that first they take a small supply built into a power mains plug (also called wall-wart) to make 15VAC, that they rectify and stabilise to 12VDC. The same (unrectified) 15VAC is used to power another wall-wart in reverse, in other words they input the 15VAC into the output of the wall-wart, which actually is the secondary of its transformer. Then on the input of the wall-wart (actually the transformer primary) they take off about 120VAC. That can then be rectified etc for the 100 and/or 170VDC. But to built this amp you don't need to built THIS power supply! Anything giving the required voltages would do. Jan Didden __________________ /Another new issue: Linear Audio Volume 3!

27th July 2006, 07:15 AM	#5
HDaudio diyAudio Member Join Date: Jul 2006	Thanh for anser..and helping me..! Now iam change Shema for new powersuply. Here :http://www.audiovnclub.net/forum/ind...e=post&id=7274 http://www.audiovnclub.net/forum/ind...e=post&id=7510 ......... And am thing good for my choice. ..File to big and am can not up to here, same like that: Powersuply : B+ with VAC 230V120ma not CT>Van12X4 danaco with 1/2 diot 14004 out CT, and 10mf 350V>choke 8H200ma >10mf 350V>R 7,5 K>220mf350V>R7,5K>220mf350V, and 150K for va. I'm thinh am don't want to follow powersuyply from that! and same I'm do here, you thinh good ? fo not good? for my ofjcetion? With H.. 12VAC not CT for ECC83, you thinh h use AC and DC? Because once time I'm DIY H with AC but OK for my Line preampli. __________________ Like DIY audio ! http://www.linn-vn.com/

17th August 2006, 09:07 AM	#6
HDaudio diyAudio Member Join Date: Jul 2006	And now Iam have to much Capacito ( Sangamo silvered ) From 10P come to 10,000,000P, may be mothan 100pc, but am dont no can use good for audio , of not? Pleaser hepl me ! It there: __________________ Like DIY audio ! http://www.linn-vn.com/

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Powersuply mystery	argo	Solid State	6	10th May 2004 01:46 PM
2 trannies on one powersuply	Per	Solid State	15	10th October 2002 06:42 AM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read