Head-Fi.org › Forums › Misc.-Category Forums › DIY (Do-It-Yourself) Discussions › 6as7 tube amp schematic
New Posts  All Forums:Forum Nav:

6as7 tube amp schematic

post #1 of 9
12/14/09 at 6:52pm
Thread Starter 
Hello
I have some 6as7 and 6sn7 tube not being used and would like to build my first headphone amp. Does any member here has any schematic using 6as7 as power tube and 6sn7 as driver tube.
Reply
post #2 of 9
12/14/09 at 8:47pm
Google says 6AS7 Headphone Amplifier, but have a look at Pete Millett's DIY Audio pages, or HeadWize Library - Projects for more ideas.
Reply
post #3 of 9
12/14/09 at 9:02pm
Millet Menace
Reply
post #4 of 9
12/22/09 at 5:47pm
I would expect the Menace to sound quite good, probably significantly better than the offerings from Woo because of the higher current run in the 6080's and the direct coupling. To top it off, using an active load on the driver stage would be even better!

Also DC heating at least the 6SN7's would be a good idea, and at least trying SS rectification.
Reply
post #5 of 9
12/22/09 at 11:55pm
I'll try to get my act together when I get back from vacation and post the schematic for the MenaceTC Lite (pics at the end of the linked thread above). It's easier and much less expensive to build compared with the original.
Reply
post #6 of 9
2/6/12 at 11:38am

I made a tube headphone amp with a pair of 6sn7 (NOS 6H8C russian), on my website you can see more pictures and the schematics of this amp: http://www.apcc.tk/photo-gallery/category/21-tube-pre

Reply
post #7 of 9
2/6/12 at 12:53pm

 

Quote:
Originally Posted by recdiy View Post

I made a tube headphone amp with a pair of 6sn7 (NOS 6H8C russian), on my website you can see more pictures and the schematics of this amp: http://www.apcc.tk/photo-gallery/category/21-tube-pre


Cool pre! 

I like your other projects too. The rainmaker and DIY-flash look particularly neat. 

Reply
post #8 of 9
2/6/12 at 7:05pm

This is my highly modified SP Extreme clone.

 

Amplifier 1CH.PNG

 

With regulated B+

HV Power Supply.PNG

IMG_0025.JPG

IMG_0740.JPG

 

I used one of Pete Millett's regulated heater supplies for the 6sn7 with it's own independent transformer and elevated ac for the 6as7 heaters. Originally I used the same pot the Extreme had but now I want to change it for a 50k one which I think works better.

 

Regards,

 

Diego


Edited by diego - 2/6/12 at 7:14pm
Reply
post #9 of 9
2/8/12 at 10:18pm
Quote:
Originally Posted by nikongod View Post

 


Cool pre! 

I like your other projects too. The rainmaker and DIY-flash look particularly neat. 



Thank You for your appreciation!

 

Reply
New Posts  All Forums:Forum Nav:
  Return Home
Head-Fi.org › Forums › Misc.-Category Forums › DIY (Do-It-Yourself) Discussions › 6as7 tube amp schematic