It is used in capacitors, electromechanical transducers and nonlinear optics. There are many variations in the electromechanical linear actuator system. Ferranti Technologies is an electronic, electromechanical and electrical engineering company based in Waterhead. The device may be electronic, mechanical, or a combination of the two (electromechanical). These are sufficient for snubbing electromechanical devices such as relays and motors. In addition, it provides system analysis solutions for electromagnetic, electronics, thermal and electromechanical simulation. The Teletype or teleprinter is an electromechanical or electronic device. His machines used electromechanical relays and counters. Modern electronic receivers are more reliable than old electromechanical systems. Solenoid bolts, a type of electromechanical locking mechanism, also exist. Digital relays also can provide protection strategies impossible to implement with electromechanical relays. Schematic diagrams are often used for the maintenance and repair of electronic and electromechanical systems. The ladder diagram resembles the schematic diagram of a system built with electromechanical relays. It used electromechanical relays in its operation. Examples of electromechanical instruments include Hammond organs and electric guitars.