¿ªÔÆÌåÓýYes, the clear plastic part is what actuates the contacts, the springs (1) in your photo. The contacts open when the dimple in the spring moves into the cavity in the actuator. When the actuator is moved so that the dimple in the spring is on the land between cavities, this pushes the spring outwards to make contact with the fixed contact (3) in your photo. What I have found from experience is that if a switch doesn't make good contact after treatment with switch cleaner, pressing the narrow part of the contact spring slightly inwards with the tip of a small screwdriver causes the end of the spring to move outwards, making a better contact when switched on. A very small movement is usually sufficient. The actual contact point can be seen in your first photo. On the
end of the spring (1) you can just see the ends of a pair of
(palladium?) contact wires just under the fixed contact (3). These
contacts are actually very similar to the key contacts in the
manuals of Hammond organs. Small pieces of semi-precious metal
wire spot welded onto the contacts. On 16/02/2023 16:47, Wayne Tarling via
groups.io wrote:
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