The Simplex is an iambic key with a heavy (1.4 kg) gold or palladium plated base and gold plated components, using long springs for the return force. Like the other Begali keys it is manufactured using NC machinery for absolute precision. Micro-threaded screws are used for all adjustments.
The Simplex Mono Basic is our least expensive single lever key, combining the base of the Simplex Basic with the mechanism of the Simplex Mono. Despite its lower price it is a very capable CW instrument that can hold it's own against many far more expensive keys on the market.