68XR20LF

Trimmer Potentiometers are small in size and provide adjustable resistance and voltage. They can be used in many applications, like receivers, amplifiers, radio circuit, oscillator, power amplifier, power supply circuit, and antenna tuning. The 68XR20LF Trimmer Potentiometer, in particular, is used to control the resistance value and can be mounted on an enclosure or panel. It is a two-terminal device which has a control knob or screw for precisely adjusting the device.

The 68XR20LF has a rotatable middle terminal with a large range of resistance values, from 0.1 to 1kΩ. Its main application is in the tuning of oscillator circuits and other filters, where a high voltage and low current are needed. This product also has a very wide electrical angle, with a range between 180° and 360°.

The 68XR20LF is composed of a fragile ceramic base and a wiper contact on a shaft, in combination with an adjustable resistance. The potentiometer is composed of two parts, the top and the bottom, which are connected by the shaft and wiper. The wiper is usually made of stainless steel, which is sliding along the resistance element as the knob is turned.

The main working principle of the 68XR20LF is grounded on the ‘third-arm principle’. The wiper provides a path for the current to flow, depending on the resistance value of the trimmer. As the wiper moves across the resistance element, the resistance between the wiper and other terminals will reduce and will reach a certain level when the wiper is connected to the other two terminals. As a result, the current flow will depend on the setting of the 68XR20LF, and the current can be adjusted by the user.

In conclusion, the 68XR20LF Trimmer Potentiometer is an adjustable device which can be used for many applications, such as oscillator tuning and power amplifiers. It is composed of a ceramic base and a wiper contact, connected by a shaft. The device is capable of adjusting the resistance depending on the setting of the wiper, and thus, the current flow will depend on the setting of the 68XR20LF.