privernuty screws to a wooden cube, to help you quickly and accurately to solder the two conductors.
Recommend to read
LIGHT TELEGRAPH
Someone who knows Morse code or just going to study it, can build a simple device, shown in the figure. On a plywood Board install the battery B and the lamp L of the flashlight. Contactor...
WITH ONE CALL
In your journal in one of the rooms of yesteryear has published an article — "the plug". I must say that the proposed options combined metal dowels rather complicated to manufacture, but...
