I look for EAR 859 pictures.

drobert · 24th October 2005, 11:16 AM

Hello,

I look for any inside, outside pictures about EAR859 amplifier.

Please, if you have any pictures about this amplifier send to me!

Thanks

drobert

edl · 24th October 2005, 05:42 PM

Dear Drobert,

A small photo attached, maybe it helps you.

Regards,

drobert · 27th October 2005, 11:59 AM

It's very nice, but I would a lief look for a inside picture about this amplifier.

Thanks

drobert

Bas Horneman · 7th April 2010, 11:18 AM

.

Obi wan · 15th February 2013, 12:27 PM

Hi,

Could you provide me a picture inside EAR 859 or 869 in better resolution (at least 2 MP)

Tnx

Quote:

Originally Posted by Bas Horneman

.

Bas Horneman · 17th February 2013, 11:10 AM

Can't remember where I found that pic.

this is all I have in my "archives"

Verstuurd van mijn GT-N7000 met Tapatalk

SY · 17th February 2013, 12:48 PM

Tim drew out the first stage of this and I thought, "That looks absolutely goofy." Current trickled though an ECC88 cascode? But when I breadboarded and tested it, it turned out to work superbly well. This would be a fine input stage for any power amp where it can be buffered.

dhsettim · 18th February 2013, 05:55 AM

Hi Sy,
its nice to hear good things about TdeP's design.
I have built the amp though I have changed the CF to a cascoded fet source follower, and played around with plate to plate feedback.
Do you have any thoughts about the pros and cons of the level shifting (is that the correct term) scheme between the cascode and the CF?
I would guess that a similar design could be used for other zero bias tubes such as the 811a. Any thoughts?
best regards,
tim (a different tim)

24th October 2005, 11:16 AM	#1
drobert diyAudio Member Join Date: Jul 2005 Location: Szombathely	I look for EAR 859 pictures. Hello, I look for any inside, outside pictures about EAR859 amplifier. Please, if you have any pictures about this amplifier send to me! Thanks drobert

17th February 2013, 11:10 AM	#6
Bas Horneman diyAudio Moderator Emeritus Join Date: Apr 2002 Location: The Netherlands Blog Entries: 18	Can't remember where I found that pic. this is all I have in my "archives" Verstuurd van mijn GT-N7000 met Tapatalk __________________ Boatanchor amps forum My "adventures" in audio

17th February 2013, 12:48 PM	#7
SY diyAudio Moderator Join Date: Oct 2002 Location: Chicagoland Blog Entries: 1	Tim drew out the first stage of this and I thought, "That looks absolutely goofy." Current trickled though an ECC88 cascode? But when I breadboarded and tested it, it turned out to work superbly well. This would be a fine input stage for any power amp where it can be buffered. __________________ If there's a sucker born every minute, where do the rest of them come from?

18th February 2013, 05:55 AM	#8
dhsettim diyAudio Member Join Date: Jul 2004 Location: Hastings	Question for SY Hi Sy, its nice to hear good things about TdeP's design. I have built the amp though I have changed the CF to a cascoded fet source follower, and played around with plate to plate feedback. Do you have any thoughts about the pros and cons of the level shifting (is that the correct term) scheme between the cascode and the CF? I would guess that a similar design could be used for other zero bias tubes such as the 811a. Any thoughts? best regards, tim (a different tim)

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27th October 2005, 11:59 AM	#3
drobert diyAudio Member Join Date: Jul 2005 Location: Szombathely	It's very nice, but I would a lief look for a inside picture about this amplifier. Thanks drobert

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