Previous Product Next Product MERLO joystick button yellow MERLO joystick monostable switch, yellow. PGA Part number M1526. You may also like… Electronics / ElectricsJoystick MERLO Electronics / ElectricsMERLO push button switch, red Electronics / ElectricsMERLO push button switch, yellow Related products Electronics / ElectricsMERLO joystick buton green Power transmissionMerlo differential – set Electronics / ElectricsMERLO strain gauge sensor