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
TAKE PICTURES OF YOURSELF…
Camera "Polaroid-636" for Amateur filming — something not only good, but in some cases, simply preferred to all others of the kind. After all, it has one advantage, which is not even...
THE “PATCHWORK” OF SUBMARINES
By the beginning of the First world war, all naval power was quite easy to divide the main with a significant naval power with diverse and numerous ships of all classes, and secondary,...
