RA20A2SD101AK CTS Rotary Potentiometer Audio

Review CTS 100 Ohm Rotary Potentiometer Vintage Audio Equipment Part

The CTS Ra20A2SD101AK Rotary Potentiometer is a high-quality audio volume control component designed for various audio applications. This potentiometer comes with a rotary knob, providing users with an intuitive way to adjust volume levels or make other audio adjustments.

Measuring 3.2 inches in length, 1.7 inches in width, and 1.2 inches in height, this CTS rotary potentiometer offers a substantial size that fits comfortably in most equipment enclosures. It is constructed with a durable shaft that ensures smooth operation and a long lifespan, even with frequent use.

The Ra20A2SD101AK features a linear taper design, which means that the resistance changes linearly as the knob is turned. This consistent resistance change makes it an ideal choice for volume control applications, as it provides a smooth and consistent feel when adjusting audio levels.

The CTS rotary potentiometer is designed to handle a maximumvoltage of 10,000 volts and a maximum power of 1 watt. It is suitable for both DC and AC applications, making it versatile for various audio projects. Its resistance value is 100k ohms, providing ample control for most audio applications.

The potentiometer's rotary knob has a silver finish, while the shaft and body are black. The knob features a clear, white indicator marking at the 12 o'clock position, making it easy to identify the center position. The CTS Ra20A2SD101AK Rotary Potentiometer also comes with a detent mechanism that provides tactile feedback, allowing users to easily identify specific volume levels.

In summary, the CTS Ra20A2SD101AK Rotary Potentiometer is a high-quality audio volume control component that offers smooth operation, durability, and versatility. Its linear taper design, substantial size, and ability to handle both DC and AC applications make it an excellent choice for various audio projects, providing users with precise and consistent volume control.

The CTS Ra20A2SD101AK rotary potentiometer is a popular choice for audio applications due to its high build quality and smooth operation. Here are some pros and cons that can help you decide if this potentiometer is the right choice for your project.

1. Smooth Operation: The CTS Ra20A2SD101AK potentiometer offers a smooth and consistent resistance change, making it ideal for volume control and other applications where precise adjustment is necessary.

2. High Build Quality: This potentiometer is built to last, with a robust construction that can withstand heavy use. It also features a sealed design, which can help prevent dust and other debris from getting inside and affecting performance.

3. Wide Operating Temperature Range: The potentiometer can operate in a wide temperature range, making it suitable for use in various environments.

4. Easy to Install: The CTS Ra20A2SD101AK potentiometer comes with a standard 1/4-20 threaded shaft, making it easy to install in most audio equipment.

1. Price: This potentiometer is on the higher end of the price spectrum, which may make it less accessible for budget-conscious projects.

2. Size: The CTS Ra20A2SD101AK potentiometer is larger than some other options, which may make it less suitable for projects with limited space.

3. May Require Additional Components: Depending on the specific requirements of your project, you may need to purchase additional components, such as a knob or a mounting kit, to use this potentiometer.

The CTS Ra20A2SD101AK rotary potentiometer is a high-quality component that offers smooth operation and robust construction, making it an excellent choice for audio applications where precise adjustment and durability are essential. However, its higher price point and larger size may make it less suitable for budget-conscious projects or those with limited space. Ultimately, the decision to purchase this potentiometer depends on the specific requirements and constraints of your project.

If you are looking for a high-quality rotary potentiometer for audio applications and are willing to pay a premium for smooth operation and durability, then the CTS Ra20A2SD101AK potentiometer is an excellent choice. However, if you are working on a budget or have limited space, you may want to consider alternative options with similar specifications but lower prices and smaller sizes.

Details:

Ideal for vintage audio restoration, electronics repair, amplifiers, or musical instrument maintenance. Cts RA20A2SD101AK 100 ohm rotary potentiometer. Branded with clear Cts logo and part number, featuring robust metal plastic construction typical of mid-20th-century parts. Rare find for collectors and technicians seeking original-spec potentiometer classic or custom builds.

Shaft and terminals display light oxidation but no structural damage, indicating good used condition.

specifications passivecompos:

• brand: Cts
• mpn: Ra20a2sd101ak
• resistance rating: 100
• type: Audio Potentiometer
• termination style: Lug
• mounting style: Panel Mount
• material: Metal
• country of origin: Afghanistan
• shape: Round
• unit type: Unit

payments passivecompos:

• wallet: paypal
• other
• credit card: visa

seller passivecompos:

• # reviews: 644
• rating: 100.0%
• city: sacramento, california

general passivecompos:

• category: Business & Industrial > Passive Components > Variable Resistors > Potentiometers

offer passivecompos:

• price: $20.00
• item condition: Used
• best offers: true
• sold #: 13
• in stock #: 1
• availability: in stock
• options: ship-to-home
• started: april 17, 2026

shipping passivecompos:

• class: standard
• carrier: usps
• service: usps ground advantage
• type: calculated
• transit: 5-11 days

returns passivecompos:

• policy: no returns