Breadboard option. Encyclopedia of radio electronics and electrical engineering
Encyclopedia of radio electronics and electrical engineering / Ham Radio Technologies
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A lot of prototyping board designs have been described on the pages of "Radio" and other amateur radio literature. As "contact" nodes on them for connecting together the conclusions of several parts, pins, petals, caps, etc. were recommended. I offer a variant of the breadboard, which I have been using in prototyping and testing designs for over 40 years.
The material for the board is any sheet insulating material with a thickness of 3 ... 5 mm: presspan, getinaks, textolite, fiberglass and even plywood or thick cardboard.
The size of the board is not limited. "Contact" nodes for soldering are brackets (Fig. 1) made of tinned copper wire with a diameter of 0,6 ... 1 mm. If there is a ready-made tinned wire, it is advisable to re-irradiate it before installing it on the board. The diameter of the holes for the brackets is 1 ... 1,1 mm.
Staples are fixed on the surface in the form of "lines" (Fig. 2), the distance between the "lines" is 8 ... 12 mm, and between the brackets in the line - 3 ... 5 mm. By connecting brackets with jumpers horizontally, vertically, diagonally, you can create power rails, "input", "output", etc. Naturally, jumpers can be made of any length to connect the most distant mounting points to each other.
Between the "lines" it is useful to drill several holes with a diameter of 3 ... 4 mm for fastening massive parts, for example, transformers, measuring instruments. On the left, right and top sides of the board, screw clamps can be fixed for quick connection of external devices to the board without soldering.
It is desirable to fix the board on four racks. It is better to make the racks farthest from you longer so that the board tilts towards you for ease of use.
Author: V.Karaulnykh, town Dmitrievka, Tambov region.
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Comments on the article:
Basil
I did the same, only the conductors cross diagonally, on the sides of the power bus and the panel from ms to ms and transistors! [up]
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