Atma-Sphere Tube Amplifier Forum

Learn from Ralph Karsten the Atma-Sphere founder/designer and discuss with fellow owners.
Atmasphere
What an OTL is, and why you should care
  • Sticky
  • 38
Replies
38
Views
15,433
microstrip
microstrip
F
Atma-sphere MA-1 MK 3.3 - Fuse Replacement Vs. Upgrading Power Cord
  • 0
Replies
0
Views
1,990
F
ferrox
R
What Cables Are You Using With Atma-Sphere Gear & Why?
  • 10
Replies
10
Views
8,989
F
ferrox
R
Differences Between Chinese and Russia 6AS7 Tubes
  • 5
Replies
5
Views
11,503
F
ferrox
C
Anyone hear the MA-3?
  • 13
Replies
13
Views
12,015
F
ferrox
Brian Walsh
Atma-Sphere MP-1 Mk 3.3
  • 12
Replies
12
Views
10,012
F
ferrox
Ron Resnick
Atma-Sphere MA-2 Amplifier
  • 2
Replies
2
Views
3,103
L
LetsMakeaDeal
Atmasphere
New preamp called the Ultraviolet!
  • 16
Replies
16
Views
17,303
Brian Walsh
Brian Walsh
Gregadd
New Atma-Sphere amp
  • 7
Replies
7
Views
7,127
Atmasphere
Atmasphere
Gregadd
Atma-Sphere Cutting Lathe
  • 32
Replies
32
Views
19,037
M
MylesBAstor
Gregadd
Last of the cowboys
  • 20
Replies
20
Views
12,999
Brian Walsh
Brian Walsh
R
6080 Tubes or Alternate to the 6AS7 Tubes
  • 0
Replies
0
Views
4,492
R
rhopkins
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