SEN / CEN All JFET IV Converter Evaluation Pack - Page 3 - diyAudio
Go Back   Home > Forums > Commercial Sector > Group Buys

Group Buys Members group buys

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 15th September 2011, 07:06 PM   #21
diyAudio Member
 
Join Date: Jan 2010
Location: Toronto
necplusultra__1 Kit__2 matched pairs__60€
Murdoc__1 Kit__2 matched pairs__60€
maravedis__1 Kit__2 matched pairs__60€
Nikon1975__1 Kit__2 matched pairs__60€
pchw__1 Kit__2 matched pairs__60€
ernesternest__1 Kit__2 matched pairs__60€
heinz1__1 Kit__2 matched pairs__60€
vitalica__1 Kit__2 matched pairs__60€
mravinsky__1 Kit__2 matched pairs__60€
samoloko__1 kit__2 matched pairs__60 euro
BDL__1 Kit__2 matched pairs__60€
ujamerstand__1 Kit__0 matched pairs__50€

Thank you.
  Reply With Quote
Old 16th September 2011, 04:40 AM   #22
EUVL is offline EUVL  Europe
diyAudio Member
 
Join Date: Oct 2003
12 kits and 22 pairs JFETs so far.
Maybe the circuit is too difficult to understand, or too simple to need a PCB.

For your support, we shall still run the batch even if we do not reach 60 kits.
The addition production costs we shall absorb, but we shall not run a second batch afterwards.

Let's give it a week or so.
I shall announce upfront so that you might have time to order additional kits, if you so wish.


Patrick
  Reply With Quote
Old 16th September 2011, 04:02 PM   #23
diyAudio Member
 
Join Date: Jan 2004
Location: malaysia
Hi Patrick,

I would like to use this IV for balanced output (PCM1794), does this mean I would need 2 kits?

Cheers
  Reply With Quote
Old 16th September 2011, 04:26 PM   #24
EUVL is offline EUVL  Europe
diyAudio Member
 
Join Date: Oct 2003
See :

Zen -> Cen -> Sen, evolution of a minimalistic IV Converter

Also please read the info in post #119, 125, 127, and last but not least # 170.


Patrick
  Reply With Quote
Old 17th September 2011, 02:41 AM   #25
diyAudio Member
 
Join Date: Aug 2006
necplusultra__1 Kit__2 matched pairs__60
Murdoc__1 Kit__2 matched pairs__60
maravedis__1 Kit__2 matched pairs__60
Nikon1975__1 Kit__2 matched pairs__60
pchw__1 Kit__2 matched pairs__60
ernesternest__1 Kit__2 matched pairs__60
heinz1__1 Kit__2 matched pairs__60
vitalica__1 Kit__2 matched pairs__60
mravinsky__1 Kit__2 matched pairs__60
samoloko__1 kit__2 matched pairs__60 euro
BDL__1 Kit__2 matched pairs__60
ujamerstand__1 Kit__0 matched pairs__50
ystkkmkr__1 Kit__2 matched pairs__60

Thank you.
  Reply With Quote
Old 17th September 2011, 10:55 AM   #26
diyAudio Member
 
Join Date: Nov 2009
Location: Vienna
Patrick,

I think the second one. PCB for this circuit means really to be spoiled, that does not hurt from time to time :-)

Thanks,

Davide
  Reply With Quote
Old 17th September 2011, 10:59 AM   #27
EUVL is offline EUVL  Europe
diyAudio Member
 
Join Date: Oct 2003
Yes, those skilled in the art can certainly do P2P on a veroboard.
But I still suggest you use a heatsink for DC-tracking.


Patrick
  Reply With Quote
Old 17th September 2011, 11:08 AM   #28
diyAudio Member
 
Join Date: Sep 2009
I'm intending to test all sen/cen with an 8 output Buffalo III. When I have some spare brain space I hope I will work out how to bias the 1.6v offset from your instructions...
But, just a thought, if you want to have a bigger GB you could post the exact details of how to do this - If you did, I'd expect many more Buffalo owners to be interested.

Maravedis
  Reply With Quote
Old 17th September 2011, 11:21 AM   #29
diyAudio Member
 
Join Date: Feb 2006
Location: Ioannina
necplusultra__1 Kit__2 matched pairs__60€
Murdoc__1 Kit__2 matched pairs__60€
maravedis__1 Kit__2 matched pairs__60€
Nikon1975__1 Kit__2 matched pairs__60€
pchw__1 Kit__2 matched pairs__60€
ernesternest__1 Kit__2 matched pairs__60€
heinz1__1 Kit__2 matched pairs__60€
vitalica__1 Kit__2 matched pairs__60€
mravinsky__1 Kit__2 matched pairs__60€
samoloko__1 kit__2 matched pairs__60 euro
BDL__1 Kit__2 matched pairs__60€
ujamerstand__1 Kit__0 matched pairs__50€
ystkkmkr__1 Kit__2 matched pairs__60€
prooptiki__1 Kit__0 matched pairs__50€

Thank you.
  Reply With Quote
Old 17th September 2011, 11:30 AM   #30
EUVL is offline EUVL  Europe
diyAudio Member
 
Join Date: Oct 2003
I have just posted a schematics of the SEN and how to provide the bias DC current.

Zen -> Cen -> Sen, evolution of a minimalistic IV Converter

Nelson Pass also gave hints on how to cope with an DC voltage offset in his Zen IV thread.

Zen I/V Converter

I do have the datasheet for the ES9018 under Non Disclosure Agreement.
So I should not discuss the details in the datasheet, except to know that it is not too different to PCM1798 in principle.

I know nothing about the Buffalo iii, nor do I intend to know.
If you (in general and not anyone in particular) want guaranteed results, you should buy the complete package from one supplier.
He then has the obligation to provide a working solution.

I do not do this for commercial reasons, so I am not interested in a large sale.
I am interested in getting people to understand and appreciate simple circuits.
And I enjoy the sort of exchange I had with Calvin & Joachim Gerhard over at the main thread.

If you are looking for a turn-key solution, I am afraid this might probably not be the right one for you.


Patrick

.

Last edited by EUVL; 17th September 2011 at 11:39 AM.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Zen -> Cen -> Sen, evolution of a minimalistic IV Converter EUVL Digital Source 1659 12th May 2014 02:09 PM
Jfet IV with regulator pcb for sale spencer Swap Meet 16 9th January 2008 04:00 AM
Oh no! Not another discrete IV converter philpoole Digital Source 33 23rd October 2007 09:54 PM
How far can IV converter be from DAC? philpoole Digital Source 7 30th April 2007 03:05 PM


New To Site? Need Help?

All times are GMT. The time now is 05:28 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2