CCS Kit options

eeyore · 24th January 2009, 09:40 AM

In the market to buy a CCS kit for a SE front end. I have two choices, the K and K Audio Cascode Current Source Kit and the DIY Hifisupply CCS kit.

The KandK is based on cascodes depletion Mosfet, whilst the DIY HFS is based on the 10M45S.

Can anyone comment which performs better in terms of output noise and stability?

Geek · 24th January 2009, 10:23 AM

Why not save $ and roll your own discrete one?

Cheers!

SY · 24th January 2009, 11:33 AM

Geek is right on. An excellent CCS is about two transistors and three resistors. Why buy a kit? This is maybe, possibly, $4 worth of parts.

beetel · 25th January 2009, 09:48 AM

http://www.classicvalve.ca/tubepcb.html

audiowize · 27th January 2009, 06:12 AM

You might also consider the Bottlehead load. A 2 transistor CCS is almost always a must!

JC951t · 27th January 2009, 08:12 AM

Hi SY,
Any nice schematics to share.

Thanks

Brit01 · 27th January 2009, 09:36 AM

The link to Greggs page has some schematics:

http://www.classicvalve.ca/docs/CVD_...inary_docs.pdf

SY · 27th January 2009, 11:36 AM

Quote:

Originally posted by JC951t
Hi SY,
Any nice schematics to share.

Thanks

Here's one from my phono amp. This particular one is set for 20mA, but that can be changed by adjusting the source resistor. There's a similar circuit in the ImPasse.

JC951t · 27th January 2009, 03:51 PM

Hi Brit 01,
Thanks for the link

JC951t · 27th January 2009, 03:53 PM

Hi SY,
Thanks. May I ask, how does it sound ?
Source resistor would that be R3 ?
Have you compare it to choke loading ?

Many thanks again

24th January 2009, 09:40 AM	#1
eeyore diyAudio Member Join Date: Aug 2005	CCS Kit options In the market to buy a CCS kit for a SE front end. I have two choices, the K and K Audio Cascode Current Source Kit and the DIY Hifisupply CCS kit. The KandK is based on cascodes depletion Mosfet, whilst the DIY HFS is based on the 10M45S. Can anyone comment which performs better in terms of output noise and stability? __________________ DF http://diy-audio-blog.blogspot.com

24th January 2009, 11:33 AM	#3
SY diyAudio Moderator Join Date: Oct 2002 Location: Austin, TX Blog Entries: 1	Geek is right on. An excellent CCS is about two transistors and three resistors. Why buy a kit? This is maybe, possibly, $4 worth of parts. __________________ "...we stumble and get up, we are sad, confident, insecure, feel loneliness and joy and love. There is nothing more; but I want nothing more.” - Christopher Hitchens 1949-2011

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24th January 2009, 10:23 AM	#2
Geek diyAudio Member Join Date: Sep 2004	Why not save $ and roll your own discrete one? Cheers!

25th January 2009, 09:48 AM	#4
beetel diyAudio Member Join Date: Jun 2007	http://www.classicvalve.ca/tubepcb.html

27th January 2009, 06:12 AM	#5
audiowize diyAudio Member Join Date: Aug 2005	You might also consider the Bottlehead load. A 2 transistor CCS is almost always a must!

27th January 2009, 08:12 AM	#6
JC951t diyAudio Member Join Date: Sep 2006	Hi SY, Any nice schematics to share. Thanks

27th January 2009, 09:36 AM	#7
Brit01 diyAudio Member Join Date: Jul 2008	The link to Greggs page has some schematics: http://www.classicvalve.ca/docs/CVD_...inary_docs.pdf

27th January 2009, 03:51 PM	#9
JC951t diyAudio Member Join Date: Sep 2006	Hi Brit 01, Thanks for the link

27th January 2009, 03:53 PM	#10
JC951t diyAudio Member Join Date: Sep 2006	Hi SY, Thanks. May I ask, how does it sound ? Source resistor would that be R3 ? Have you compare it to choke loading ? Many thanks again

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