High-End Regulated Buffered Inverted GC

carlosfm · 5th June 2004, 06:08 PM

Here it is, finally.
Trafo scavenged from an old amp.
Small box, 22cm wide.
Everything had to fit there.
Details of PSU construction, testing, listening, changing, listening again, etc. are here:
Gainclone Power Supply Design

Thanks to Pedja and Nuuk for some hints on the PSU.

Here it goes, first one:

carlosfm · 5th June 2004, 06:13 PM

This is not the best heatsink arrangement, but it's ok, and it had to be this way because of the limited space inside the box.
The heatsink is also dividing the amp in two seccions (PSU and amp modules), so some shielding is provided here.
Anyway, ABSOLUTELY no noise.

carlosfm · 5th June 2004, 06:16 PM

Sound is absolutely fantastic.

carlosfm · 5th June 2004, 06:19 PM

is to regulate this one.

X.G. · 5th June 2004, 06:22 PM

beautiful!

carlosfm,I had introdued your experience of GC regulted PSU to my friend

.My friend asked me for the sch,could you share us?although I read your post and got the basic sch in my mind,I want to get the origin sch drawn by you

.

thanks a lot,

X.G.

Nuuk · 5th June 2004, 06:40 PM

Very good Carlos and of more than passing interest to me!

My ten-year old visitor has gone home so I am back in my 'workshop'. It has taken me most of today to make two wooden knobs

but I am making progress.

X.G. this regulated PSU is described on Pedja's site .

Cro maniac · 5th June 2004, 06:50 PM

Great work

You are the

carlosfm · 5th June 2004, 07:11 PM

Nuuk, if you separate things, like I did, and make a High-End preamp, you don't need to make the wooden knobs for this.

I don't open my pre for almost a year now.

Isn't it incredible?

It means that it's really good, I'm very satisfied.
This is a power amp, and this thing drives my difficult Epos 11 speakers like there's no tomorrow.

I have some CDs with extreme bass and on those tracks with ultrasonic bass I had some room resonances (I thought!).
Now they completely vanished.

This is a mini-Krell.

Mini just because of the size.

Nuuk · 5th June 2004, 07:14 PM

Quote:

Nuuk, if you separate things, like I did, and make a High-End preamp, you don't need to make the wooden knobs for this.

This I know Carlos

and no new stepped attenuator etc etc.

Perhaps I will have a garage sale at the end of the year and sell off all these amps.

carlosfm · 5th June 2004, 11:14 PM

My wife likes the new amp!

5th June 2004, 06:22 PM	#5
X.G. diyAudio Member Join Date: Sep 2003 Location: GuangDong China	:up: beautiful! carlosfm,I had introdued your experience of GC regulted PSU to my friend.My friend asked me for the sch,could you share us?although I read your post and got the basic sch in my mind,I want to get the origin sch drawn by you . thanks a lot, X.G.

5th June 2004, 06:40 PM	#6
Nuuk diyAudio Member Join Date: Feb 2003 Location: Somerset, SW England	Very good Carlos and of more than passing interest to me! My ten-year old visitor has gone home so I am back in my 'workshop'. It has taken me most of today to make two wooden knobs but I am making progress. X.G. this regulated PSU is described on Pedja's site . __________________ The truth need not be veiled, for it veils itself from the eyes of the ignorant.

5th June 2004, 11:14 PM	#10
carlosfm Banned Join Date: Mar 2003 Location: Lisbon, Portugal	Guess what? My wife likes the new amp!

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5th June 2004, 06:50 PM	#7
Cro maniac diyAudio Member Join Date: Feb 2004 Location: Zagreb, Croatia Blog Entries: 2	Great work You are the

5th June 2004, 07:11 PM	#8
carlosfm Banned Join Date: Mar 2003 Location: Lisbon, Portugal	Nuuk, if you separate things, like I did, and make a High-End preamp, you don't need to make the wooden knobs for this. I don't open my pre for almost a year now. Isn't it incredible? It means that it's really good, I'm very satisfied. This is a power amp, and this thing drives my difficult Epos 11 speakers like there's no tomorrow. I have some CDs with extreme bass and on those tracks with ultrasonic bass I had some room resonances (I thought!). Now they completely vanished. This is a mini-Krell. Mini just because of the size.

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