Components Needed!

contaxchen · 24th August 2003, 06:23 AM

Hallo!!

I am trying to clone a EAR 834.
The reason that I choose this one is I like everything this amp gives, but it high frequencies.
I need "A LOT OF CAPACITORS" !!
Especially, 8 pieces of high voltage caps, 400 mf/250V.
Any offer would be apprecaited.
cchen

KevinLee · 24th August 2003, 11:08 PM

Hello Contaxchen,

I have many 680UF 250 Volt Panasonic TSU capacitors, new never used.

let me know if you are interested.

Thanks

KevinLee

Brett · 24th August 2003, 11:26 PM

Quote:

Originally posted by contaxchen
I am trying to clone a EAR 834.
The reason that I choose this one is I like everything this amp gives, but it high frequencies.
I need "A LOT OF CAPACITORS" !!
Especially, 8 pieces of high voltage caps, 400 mf/250V.
Any offer would be apprecaited.
cchen

Shoving a whole lot of electro caps in the amp is no guarantee of decent top end. Quite the opposite usually. Blech!

fdegrove · 24th August 2003, 11:40 PM

Hi,

Quote:

Shoving a whole lot of electro caps in the amp is no guarantee of decent top end. Quite the opposite usually. Blech!

At 1600µF/250V per channel what else are you going to use?

Cheers,

Brett · 24th August 2003, 11:52 PM

Quote:

Originally posted by fdegrove
At 1600µF/250V per channel what else are you going to use?

A better designed PSU. Hammond chokes are cheap in the US, and the supply draw is low.....

Swapping electros is changing the flavour of the turd.

fdegrove · 25th August 2003, 12:10 AM

Hi,

Quote:

A better designed PSU. Hammond chokes are cheap in the US, and the supply draw is low.....

That assumes we know what the EAR834 requires...I don't.

You assume low current draw from an integrated amp?

I'm no big fan of electros either but I can assure you that in a well thought out design you won't hear them at all.
Don't even need chokes for that...

Either way, without having had a glance at the circuit there isn't much to argue about.

Cheers,

Brett · 25th August 2003, 12:21 AM

It's a couple of 12AX7 and 12AU7.
ax-ax-au(cf) with inverting feedback/RIAA to the grid of the second ax.
20mA/ch max.
PSU is a doubler and the heaters are DC, series strung.

fdegrove · 25th August 2003, 12:38 AM

Hi,

Brett-San,

It seems we're talking passed each other...

I figure you have a 834 preamp in mind whereas I'm thinking of an integrated.

EAR 834

Cheers,

Brett · 25th August 2003, 12:45 AM

Quote:

Originally posted by fdegrove
It seems we're talking passed each other...

I figure you have a 834 preamp in mind whereas I'm thinking of an integrated.

EAR 834

Cheers,

You're right. I was thinking of the pre.

Cheers

Apex Jr · 25th August 2003, 03:00 PM

I have stock of some 470uf 450V snap-in caps at $3.00ea
Steve @ Apex Jr

24th August 2003, 06:23 AM	#1
contaxchen diyAudio Member Join Date: Aug 2003 Location: Indiana USA	Components Needed! Hallo!! I am trying to clone a EAR 834. The reason that I choose this one is I like everything this amp gives, but it high frequencies. I need "A LOT OF CAPACITORS" !! Especially, 8 pieces of high voltage caps, 400 mf/250V. Any offer would be apprecaited. cchen

25th August 2003, 12:38 AM	#8
fdegrove diyAudio Senior Member Join Date: Aug 2002 Location: Belgium	EAR,EAR... Hi, Brett-San, It seems we're talking passed each other... I figure you have a 834 preamp in mind whereas I'm thinking of an integrated. EAR 834 Cheers, __________________ Frank

25th August 2003, 03:00 PM	#10
Apex Jr diyAudio Member Join Date: Jun 2002 Location: Torrance, Calif	Caps needed I have stock of some 470uf 450V snap-in caps at $3.00ea Steve @ Apex Jr

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24th August 2003, 11:08 PM	#2
KevinLee diyAudio Member Join Date: Oct 2002 Location: Winnipeg MB Canada	Hello Contaxchen, I have many 680UF 250 Volt Panasonic TSU capacitors, new never used. let me know if you are interested. Thanks KevinLee

25th August 2003, 12:21 AM	#7
Brett diyAudio Member Join Date: Jan 2002	It's a couple of 12AX7 and 12AU7. ax-ax-au(cf) with inverting feedback/RIAA to the grid of the second ax. 20mA/ch max. PSU is a doubler and the heaters are DC, series strung.

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