Sunday, 16 September 2012
Thursday, 6 September 2012
"A couple of spring clothes-pegs fixed to a piece of plywood three-eights of an inch thick makes a useful holder for working diagrams, notes etc. One side of the clothes-peg should be screwed to the surface of the boards, or strong glue may be used instead, although this last method is neither so strong nor so lasting."
"Dust between the plates of a radio wireless condensor very often causes crackles in the loudspeaker. The best way to get rid of the dust is to push a feather between the plates as shown here. A turkey feather is best because it is larger, but it must be clean and dry."