If you saw a Board, as shown in the picture, you get four blanks to build universal support for any rack — for example, the hanger or Christmas tree. Assembly can be done with nails or screws.
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SAFE POWER SUPPLY
The inclusion of transformers on 400 Hz network, 220 V(50 Hz) using a ballast capacitor. If you look at the merits in diversity of industrial and self-made Amateur radio power supplies,...
CLAMP IN SIZE
If you need a clamp of a certain size, it can be made from what is at hand: steel rod, strip, angle or profile. Making them need the bracket, drill holes in it and threaded (or welded...
