Leaf buttons were the original type of buttons used on most of the early video games (carried over from pinball machines). The name comes from the leaf switch that it is used with.
These button have a long throw which is part of the authentic feel. The leaf switches allow for flutter firing techniques which give fast fire rates. And the long throw makes it easier to avoid bottoming out which is more comfortable and less damaging to old bodies.
We use the short version (as used by Williams) which means the maximum thickness they will mount in is about 18mm. For thicker panels the backside will need to be rebated. We use a 'snap' version, meaning they are not held together with a metal clip, instead they snap together via a barbed collar.
We have sourced new leaf switches with gold contacts. The same geometry and leaf stiffness as Williams (and nearly everyone else) used. Note that Williams switches had a deep block, these switches will need mounting on a platform of some kind (depending on panel thickness)
This is how we mount leaf switches on our control panels. A sliding mounting block allows to adjust the cantilever length and hence stiffness.
Compliant orings allow for fine screw adjustment of the switch gap (no more clumsy bending with needle nosed pliers).
Contact us if you want to buy replacement buttons or switches. Or if you want to buy assemblies for your own project (note that the groove under the slider block is necessary)
£3.25 Button (bare)
£0.25 Pal Nut
£0.25 Large washer M16
£3.00 Switch (bare)
£2.00 Slider block with screws and orings
£1.50 Fixed block with screws and orings
Below is shown a switch and 4mm block assembly which is sutiable for replacement of the Williams Defender switch (also shown) this adds the fine gap adjustment capability:
91 Canterbury Close
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