..my little ecc82 preamp-project

[Mr. Triatic]

i thought i have to show u guys my "beta" preamp, just to encourage your own building a little..

 

[phil]

Nice one Mr Triatic, now let's have a look inside and show us the circuit.
Phil.

 

[Mr. Triatic]

....and the inside...

A rat´s nest... cable-salad...
But it's only a "BETA"-test that performs quite well, better than before anyhow!

 

[till]

will you show us some circuit diagramm / schematic too? is there a reason to prefer ecc 82 than 81 or 83 ??

 

[planet10]

will you show us some circuit diagramm / schematic too? is there a reason to prefer ecc 82 than 81 or 83 ??

Yes lets see the schematic -- common cathode driving a cathode follower like the Foreplay or something more exotic?

dave

 

[Mr. Triatic]

...schematic...

I just dont have any schematic yet... but the basic construction is the simple cathodefollower with ECC82 / 12AU7, constructed from the usual schematic that have been posted in this forum several times before, and just with small mods/adjustments to get the proper match to my power amp.
-the sound is nothing to be especially excited over, but for me and the budget-gear i use, it was THE difference that i needed to enjoy my music collection.
of course, the joy of building your own equipment, that works good, is more worth than "true HiFi".

cheers.
/Ludvig.

 

[radio]

Hello!
Show the scheme of this small preamplifiers, and a little chitchat!
Greeting

 

[richwalters]

ECC82 found a use ?

 

[radio]

High End preamplifier with ECC82!

ECC82 found a use ?

Hello!!
Give preamplifier for Display the scheme with the ECC82, so little to comment!?
Best Regards,

 

[richwalters]

If you find a good use for the ECC82...well done, if you are happy with it. For me it's performance is a bit of a technical deadend duffer. Hence no comment !!!
Morgan Jones also it.

richy

 

[SY]

Rich, with 100% feedback (probably 20dB or so), the distortion becomes less of an issue.

 

[richwalters]

Ya....SY your'e right...sorry, I just' have a heck of a grudge against this sonically awkward tube ! --> anyday a 6SN7. (BAd day)

richy

 

[revintage]

If you run it well over 10mA it performs acceptable. It is normally run at far to wimpy currents.

 

[radio]

Sheme with ECC82!

Hello!!
People give this monster display scheme of pre-amp with ECC82!!?
Best Regards!

 

[radio]

High-End Preamplifier with ECC82 - Project!!

Hello!
People do not be shy, give it hang here with ECC82 High-End Preamplifier scheme!
Best Regards!!

 

[richwalters]

Well, Where is it to be seen ?

 

[radio]

High End preamplifier with ECC82-Circuit!!

So I'm looking for scheme High End Preamp with ECC82!

 

[DF96]

A circuit diagram would be nice!

I compared ECC82, ECC804 and 6FQ7 in a simple cathode-coupled circuit. The ECC82 was best, particularly RCA. Note that these results will not transfer to a common cathode circuit, as the distortion mechanisms are different there.

BTW radio, the best way to get an answer is to ask a polite question and then wait for a reply.

 

[radio]

Hello!
I wanted to offer a measurement performed on Vacum Tube SRPP Preamplifier With ECC82-Project!
The ratio of the second and third harmonics.
Also i want to see the measured frequency response.
Thanks for your help!

 

[radio]

Measurement and feedback!?

Hello!
The measurements refer to the preamplifier is given below in Scheme (Figure 1)!
Please someone let that little comment about this amplifier, if it does as a power amplifier.
Feedback to be about the sound and display measurements if it worked.
Many thanks in advance!