Recommend a schematic for a Moving Coil head amp?

Pyre · 20th February 2007, 05:48 PM

Could anyone recommend a tube based Moving Coil head amp schematic for me to build? Preferably something simple based on the 6922 or similar.

Has anyone built such a beast? When I build a head amp do I put it between the player and the phono stage or do I hook it into the regular line amp stage?

I have a Rega 2 with a Sony XL-MC1 hooked to a modified PAS3 type preamp. There is just not enough gain to sound anything close to reasonable. Even when I swap out the 5751 tubes for 12AX7s there is not much of a change.

Thanks in advance, I have never been disappointed in the knowledge given here.

SY · 20th February 2007, 06:50 PM

You might want to check out the first stage of Allen Wright's preamps. www.vacuumstate.com

If I were to use a 6922/E88CC family tube, I would definitely use a step-up transformer if the solid state bit of Allen's design scares you.

vinylkid58 · 20th February 2007, 08:22 PM

Try a pair of CineMag CMQEE-3440A Step up transformers:
http://db.audioasylum.com/cgi/m.mpl?...ag&r=&session=

There are others using these for low output MC's, just search the Vinyl Asylum. I just may give them a try myself.

Jeff

Pyre · 20th February 2007, 09:33 PM

Those do look pretty interesting. Definitely simplifies things, no power or anything. I could put them right in my Pas3 and run a set of separate inputs to them.

I will do a bit more searching on them and see what luck people have had with them.

Thanks!

20th February 2007, 05:48 PM	#1
Pyre diyAudio Member Join Date: May 2006	Recommend a schematic for a Moving Coil head amp? Could anyone recommend a tube based Moving Coil head amp schematic for me to build? Preferably something simple based on the 6922 or similar. Has anyone built such a beast? When I build a head amp do I put it between the player and the phono stage or do I hook it into the regular line amp stage? I have a Rega 2 with a Sony XL-MC1 hooked to a modified PAS3 type preamp. There is just not enough gain to sound anything close to reasonable. Even when I swap out the 5751 tubes for 12AX7s there is not much of a change. Thanks in advance, I have never been disappointed in the knowledge given here.

20th February 2007, 06:50 PM	#2
SY diyAudio Moderator Join Date: Oct 2002 Location: Austin, TX	You might want to check out the first stage of Allen Wright's preamps. www.vacuumstate.com If I were to use a 6922/E88CC family tube, I would definitely use a step-up transformer if the solid state bit of Allen's design scares you. __________________ "It is not seemly, after wiping your nose, to spread out your handkerchief and peer into it as if pearls and rubies might have fallen out of your head." - Erasmus

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20th February 2007, 08:22 PM	#3
vinylkid58 diyAudio Member Join Date: May 2005 Location: Victoria, B.C.	Try a pair of CineMag CMQEE-3440A Step up transformers: http://db.audioasylum.com/cgi/m.mpl?...ag&r=&session= There are others using these for low output MC's, just search the Vinyl Asylum. I just may give them a try myself. Jeff

20th February 2007, 09:33 PM	#4
Pyre diyAudio Member Join Date: May 2006	Those do look pretty interesting. Definitely simplifies things, no power or anything. I could put them right in my Pas3 and run a set of separate inputs to them. I will do a bit more searching on them and see what luck people have had with them. Thanks!

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