Threads 1 to 10 of 10

Forum: Atma-Sphere Tube Amplifier Forum

Learn from Ralph Karsten the Atma-Sphere founder/designer and discuss with fellow owners.

  1. Sticky Thread Sticky: What an OTL is, and why you should care

    Started by Atmasphere, 09-21-2014 04:25 PM
    2 Pages
    1 2
    • Replies: 12
    • Views: 7,222
    09-22-2014, 02:51 PM Go to last post
  1. Anyone hear the MA-3?

    Started by caesar, 03-13-2011 06:21 PM
    2 Pages
    1 2
    • Replies: 12
    • Views: 8,960
    06-01-2017, 09:03 PM Go to last post
  2. Atma-Sphere MA-2 Amplifier

    Started by Ron Resnick, 02-28-2017 05:12 PM
    atma-sphere, ma-2
    • Replies: 2
    • Views: 1,662
    05-20-2017, 06:23 AM Go to last post
  3. Differences Between Chinese and Russia 6AS7 Tubes

    Started by rhopkins, 05-12-2010 01:31 PM
    • Replies: 4
    • Views: 10,094
    11-05-2015, 10:56 AM Go to last post
  4. Atma-Sphere MP-1 Mk 3.3

    Started by Brian Walsh, 10-28-2015 08:56 PM
    2 Pages
    1 2
    • Replies: 11
    • Views: 5,949
    10-29-2015, 02:29 PM Go to last post
  5. New preamp called the Ultraviolet!

    Started by Atmasphere, 07-21-2014 10:46 AM
    2 Pages
    1 2
    • Replies: 16
    • Views: 13,994
    03-06-2015, 05:48 PM Go to last post
  6. New Atma-Sphere amp

    Started by Gregadd, 11-14-2012 09:02 AM
    • Replies: 7
    • Views: 5,583
    11-20-2012, 03:17 PM Go to last post
  7. Atma-Sphere Cutting Lathe

    Started by Gregadd, 08-30-2012 12:59 PM
    4 Pages
    1 2 3 ... 4
    • Replies: 32
    • Views: 14,791
    09-10-2012, 02:04 PM Go to last post
    • Replies: 8
    • Views: 6,886
    02-19-2012, 08:06 AM Go to last post
  8. Last of the cowboys

    Started by Gregadd, 05-07-2010 04:51 PM
    3 Pages
    1 2 3
    • Replies: 20
    • Views: 11,040
    07-08-2011, 07:20 PM Go to last post
  9. 6080 Tubes or Alternate to the 6AS7 Tubes

    Started by rhopkins, 05-12-2010 01:25 PM
    • Replies: 0
    • Views: 3,732
    05-12-2010, 01:25 PM Go to last post

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