ELL80

Ragnwald · 28th March 2008, 07:33 PM

Hi

I have in a box, two outputtransformers for use with ELL80, and a powersuply for a little stereo mainamp.
The powertransformer is capabel of +300VDC.
For the moment I use it in a headphoneamp at 250VDC.

What tubes are there on the market today for substitute?
Think perhaps the EL84 is a bit to heavy for these outputtransformers.

I want a tube with a singel pentode inbord.
Or perhaps there is a little triode somewhere to use.

regards

KaDe · 28th March 2008, 08:17 PM

Hi

ELL80 is two EL95 in one bottle, are your transformers SE or PP ?

Ragnwald · 28th March 2008, 08:45 PM

They are PP.
EL95, is it a tube that is easy to get?
And is it a good sounding tube with resonabel parameters?

KaDe · 28th March 2008, 10:18 PM

El95 are great audio tubes, Telefunken used them in the later version V73 studio amps and Sennheiser had the VKS 203 :
http://www.tube-classics.de/TC/Germa...203/VKS203.htm

Ragnwald · 28th March 2008, 11:47 PM

Thanks KaDe

Nice information.
EL95 and 6DL5 shall be the same tube.
Hope they are on the market still.

KaDe · 29th March 2008, 02:37 AM

Yes, 6DL5 is their foreign name.
Keep me informed about your plans.
I´m want to build the VKS203 circuit with these tiny irons:

Ragnwald · 29th March 2008, 08:25 PM

Hi

Have some 6N1Ps laying, that I´m going to use in this amp, both as input and drivers. It´s like a better ECC88.
If I manage to make the right fileformat of my schematic, I will show it here.

Think it is Telefunken ELL80 on my photo.

How do I create the thumbnail pic?

KaDe · 30th March 2008, 11:10 PM

I see you have your own ideas how to use the transformers.........but this tubes on your picture are not ELL80s.
To me they look like EL84s: Valvo on the left, Telefunken on the right.

Ragnwald · 31st March 2008, 05:03 PM

Hi KaDe

You are absolutely right they were EL84s. You have a good eye.

It was my intension to build somthing not so complicated with those outputtrannies, but yes I am a openminded man.

The Sennheiser VKS 203 is a real beaty of schematic topology.
The only thing that make me thoughtful, is the choice of ECC83 as drivers. But you can tell me the benefit?

Here is the schematic I was thinking of as the projekt, a very simple but nice sounding little amp.
http://web.telia.com/~u49831149/EL84...%20(Small).jpg

Yvesm · 31st March 2008, 05:27 PM

Have a look here:

EL84 Amp - Baby Huey

Yves.

28th March 2008, 07:33 PM	#1
Ragnwald diyAudio Member Join Date: Feb 2008 Location: Gotland	Ell80 Hi I have in a box, two outputtransformers for use with ELL80, and a powersuply for a little stereo mainamp. The powertransformer is capabel of +300VDC. For the moment I use it in a headphoneamp at 250VDC. What tubes are there on the market today for substitute? Think perhaps the EL84 is a bit to heavy for these outputtransformers. I want a tube with a singel pentode inbord. Or perhaps there is a little triode somewhere to use. regards

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28th March 2008, 08:17 PM	#2
KaDe diyAudio Member Join Date: May 2007	Hi ELL80 is two EL95 in one bottle, are your transformers SE or PP ?

28th March 2008, 08:45 PM	#3
Ragnwald diyAudio Member Join Date: Feb 2008 Location: Gotland	They are PP. EL95, is it a tube that is easy to get? And is it a good sounding tube with resonabel parameters?

28th March 2008, 10:18 PM	#4
KaDe diyAudio Member Join Date: May 2007	El95 are great audio tubes, Telefunken used them in the later version V73 studio amps and Sennheiser had the VKS 203 : http://www.tube-classics.de/TC/Germa...203/VKS203.htm

28th March 2008, 11:47 PM	#5
Ragnwald diyAudio Member Join Date: Feb 2008 Location: Gotland	Thanks KaDe Nice information. EL95 and 6DL5 shall be the same tube. Hope they are on the market still.

29th March 2008, 08:25 PM	#7
Ragnwald diyAudio Member Join Date: Feb 2008 Location: Gotland	Hi Have some 6N1Ps laying, that I´m going to use in this amp, both as input and drivers. It´s like a better ECC88. If I manage to make the right fileformat of my schematic, I will show it here. Think it is Telefunken ELL80 on my photo. How do I create the thumbnail pic?

30th March 2008, 11:10 PM	#8
KaDe diyAudio Member Join Date: May 2007	I see you have your own ideas how to use the transformers.........but this tubes on your picture are not ELL80s. To me they look like EL84s: Valvo on the left, Telefunken on the right.

31st March 2008, 05:03 PM	#9
Ragnwald diyAudio Member Join Date: Feb 2008 Location: Gotland	Hi KaDe You are absolutely right they were EL84s. You have a good eye. It was my intension to build somthing not so complicated with those outputtrannies, but yes I am a openminded man. The Sennheiser VKS 203 is a real beaty of schematic topology. The only thing that make me thoughtful, is the choice of ECC83 as drivers. But you can tell me the benefit? Here is the schematic I was thinking of as the projekt, a very simple but nice sounding little amp. http://web.telia.com/~u49831149/EL84...%20(Small).jpg

31st March 2008, 05:27 PM	#10
Yvesm diyAudio Member Join Date: Jul 2004 Location: Ardeche	Have a look here: EL84 Amp - Baby Huey Yves.

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