[PrevPage] [Next] [INDEX ]  Volume 1   8 Mar. 1876    Page 35  [Source] [ NOTES ]

March 8th 1876

    Experiments with an ordinary "C" Tuning fork.

  1. Reed circuit

    Resistance of M = 1/2 ohm ­ M' = 1/2 Ohm.
    Battery B ­ four cells almost run down.
    Tuning fork f vibrated ­­ sound clearly audible from S although it was placed in a different room from f.   The sound was perfectly audible when the armature S was in contact with M' and was pressed closely against the ear.

  2. The magnet M was removed and another magnet having a very high resistance substituted. Very faint sound heard from M' when f was vibrated.

  3. Weird 1-reed The tuning-fork f was vibrated in the neighbourhood the wire W. No audible effect from M'.

[PrevPage] [Next] [INDEX ]  Volume 1   8 Mar. 1876    Page 35  [Source] [ NOTES ]