Phono Stage Only? - diyAudio
Go Back   Home > Forums > Amplifiers > Tubes / Valves

Tubes / Valves All about our sweet vacuum tubes :) Threads about Musical Instrument Amps of all kinds should be in the Instruments & Amps forum

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 6th August 2003, 03:01 AM   #1
diyAudio Member
 
Join Date: Feb 2003
Location: Columbus, OH
Default Phono Stage Only?

I'm second-guessing the phono stage in my Classe' 47.5 preamp and thought it might be nice to try a seperate phono stage. Tubes this time.

I've found a lot of quick plans for phono stages integrated to a preamp, but is there a simple design for a medium-output (.4mv) MC tube phono stage?

I've built a set of speakers or two, but never any electronics. That's why I'm looking for simple.

Thanks in advance...
  Reply With Quote
Old 6th August 2003, 07:35 AM   #2
EC8010 is offline EC8010  United Kingdom
diyAudio Moderator Emeritus
 
EC8010's Avatar
 
Join Date: Jan 2003
Location: Near London. UK
I expect other people will say it as well, but phono stages are the hardest. Rather than plunging in at the deep end, you might prefer to first make something easier - otherwise, the difficulties might completely put you off.
__________________
The loudspeaker: The only commercial Hi-Fi item where a disproportionate part of the budget isn't spent on the box. And the one where it would make a difference...
  Reply With Quote
Old 6th August 2003, 10:14 AM   #3
RIP
 
pedroskova's Avatar
 
Join Date: Dec 2002
Location: C'ville VA, USA
Hi,

0.4mV is closer to low output than medium output. One option might be building a kit, like those from Bottlehead, Hagerman, or K&K Audio, and then adding a stepup transformer at the input. I agree with EC8010. I wouldn't recommend scratch building a phono stage as a first tube project - hence, the kits above, where someone else has spent all the effort on layout and chasing down noise issues.
  Reply With Quote
Old 6th August 2003, 12:31 PM   #4
diyAudio Member
 
Join Date: Feb 2003
Location: Columbus, OH
I appreciate the advise. a kit is exactly what I should be looking for. I'd MUCH rather be able to take a design and just use better parts than have to figure it out on my own.

Any suggestions on where to buy the kits?
  Reply With Quote
Old 6th August 2003, 12:48 PM   #5
RIP
 
pedroskova's Avatar
 
Join Date: Dec 2002
Location: C'ville VA, USA
addresses to the companies I mentioned above

http://members.aol.com/_ht_a/kevinc9...mtbrand=AOL_US

http://www.hagtech.com/

http://www.bottlehead.com/et/adobesp.../seduction.htm
  Reply With Quote
Old 6th August 2003, 01:19 PM   #6
diyAudio Member
 
Brett's Avatar
 
Join Date: Jan 2002
I like pedroskova's suggestions, and in the order listed. The K&K is the most expensive but it already has input step up transformers for the low output voltage of your cart, where the Hagerman Cornet, or the Seduction need them added in. A decent pair of transformers would be ~$150.
But any of the three would be a great phono pre for you.
  Reply With Quote
Old 6th August 2003, 07:45 PM   #7
diyAudio Member
 
Join Date: Feb 2003
Location: Columbus, OH
I just spoke to Kevin at K&K and ordered his "kit" for the whole ball of wax. (transformers and chassis ect...)

Thanks for the advise. I'll let you all know how it turns out. =)
  Reply With Quote
Old 6th August 2003, 07:52 PM   #8
diyAudio Member
 
Brett's Avatar
 
Join Date: Jan 2002
Quote:
Originally posted by CptTripps
I just spoke to Kevin at K&K and ordered his "kit" for the whole ball of wax. (transformers and chassis ect...)

Thanks for the advise. I'll let you all know how it turns out. =)
I'll look forward to that.
  Reply With Quote
Old 6th August 2003, 07:53 PM   #9
RIP
 
pedroskova's Avatar
 
Join Date: Dec 2002
Location: C'ville VA, USA
Wow, that was quick.

I'm jealous.

Look forward to your opinion.
  Reply With Quote
Old 6th August 2003, 09:07 PM   #10
diyAudio Member
 
Join Date: Feb 2003
Location: Columbus, OH
Quote:
Originally posted by pedroskova
Wow, that was quick.

I'm jealous.

Look forward to your opinion.
Yeah, I don't F--- around with stuff like this... I read the reviews and can tell that it'll do what I want. The kicker was when I talked to Kevin on the phone. I can tell when I'm dealing with someone that knows what they are talking about.
  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
NS-10 phono stage ponger Pass Labs 9 28th March 2011 08:57 AM
DIY phono to replace roksan phono stage seroxatmad Analog Line Level 6 14th December 2008 05:46 PM
new phono stage or old preamp with phono? flohmann Analog Line Level 2 2nd October 2008 09:51 PM
Should I replace Scott 222C phono stage with Claret phono stage? Bing Yang Analogue Source 0 22nd August 2005 06:41 AM
Phono Stage ruangrit Analogue Source 1 11th October 2003 10:13 AM


New To Site? Need Help?

All times are GMT. The time now is 04:01 PM.


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