| The design presented here is for a device for testing radio control (RC) servos. The present design has features that make it especially use...
Ray King (3)
| In many model railway layouts, electromagnets instantly snatch turnouts and semaphores from one position to another with an associated ‘clun...
| ‘Smooth Operator’ elsewhere in this issue employs model control servos to drive the turnouts on a model railway. One of its advantages is th...