“COAT” FOR BATTERIES

AA cells can be installed in a socket of larger diameter than itself, if you wrap it in several layers of paper, foam or any other available material suitable for this purpose. For example, a galvanic cell AAA can be installed in a standard socket AA.
If the length of the socket is greater than the length of a galvanic cell between their respective contacts should be inserted in a folded several times a piece of aluminum foil.

Recommend to read

  • There’s a machine… on the tableThere’s a machine… on the table
    At first, like most beginner radio amateurs, I drilled the mounting holes in printed circuit boards with a universal tool — an electric hand drill. However, it turned out that for making...
  • NOV OLD RAZORNOV OLD RAZOR
    The "grandfather" safety razors, which have long ceased to use it, there's one valuable part, of which it is possible to use for other purposes — it clip. Unscrew the components, remove...