Vacuum tube with spherical body
Vacuum tube with spherical body, containing gilt mill wheel, for showing circulation of residual gas
- Object Number:
- 1916-36/1
- type:
- tubes
Six vacuum tubes (see 6 stroke nos).
Vacuum tube with spherical body, containing gilt mill wheel, for showing circulation of residual gas
Vacuum tube containing mica mill wheel, for showing circulation of residual gas
Vacuum tube with cylindrical body, containing gilt mill wheel, for showing circulation of residual gas
Vacuum tube with cylindrical body, containing adjustable mica wheel, for showing circulation of residual gas
Vacuum tube with spherical body, containing adjustable mica wheel, for showing circulation of residual gas.
Vacuum tube with mica mill wheel mounted on pivoted glass frame, for showing circulation of residual gas
Wooden stand for vacuum tube