PLASTIC CAPACITORS INC 0F50-503 Oil Tube Amplifiers 0.05UF Inc. 5000V

( Brand: Plastic Capacitors Inc ), ( Manufacturer Part Number: 0F50-503 ), ( Model: 0.05UF ), ( Part Type: Oil Tube Amplifier ), ( Country Of Origin: United States )

Review PLASTIC CAPACITORS INC Inc. Oil 5000v For Tube Amplifiers Tested And Matched

Introducing our high-performance Oil Capacitors, specifically designed for use in tube amplifiers. These capacitors come in a value of 0.05 microfarads (0.05uF) with a voltage rating of an impressive 5000 Volts (5kV), making them suitable for handling the high voltages typical in tube amplifier circuits.

The capacitors are filled with premium quality mineral oil, which provides excellent insulation and cooling properties. The oil also acts as a dielectric medium, ensuring a stable and consistent electrical performance over a wide range of temperatures. The use of oil as a dielectric also makes these capacitors more robust against voltage surges and high ripple currents, which are common in tube amplifier circuits.

The capacitors are constructed using a metalized aluminum foil electrolite, which provides a large surface area for energy storage and ensures a low Equivalent Series Resistance (ESR). A low ESR value results in a more efficient power transfer and reduces power loss, leading to improved amplifier performance and increased output power.

The capacitors are also designed with a robust and durable construction, featuring thick and sturdy terminals that can withstand the rigors of tube amplifier operation. The terminals are also gold-plated, ensuring a reliable electrical connection and reducing the risk of corrosion.

These Oil Capacitors are ideal for use in various types of tube amplifiers, including guitar amplifiers, audio power amplifiers, and vacuum tube radio amplifiers. They are also suitable for use in other high voltage applications where a stable and reliable capacitor is required.

In conclusion, our Oil Capacitors for tube amplifiers offer superior electrical performance, robust construction, and excellent cooling properties, making them an ideal choice for tube amplifier applications. With a value of 0.05uF and a voltage rating of 5kV, these capacitors provide the stability and reliability required for high voltage tube amplifier circuits.

Capacitors are essential components in tube amplifiers, playing a crucial role in filtering and smoothing the DC voltage supplied to the amplifying tubes. One type of capacitor that is commonly used in vintage and high-end tube amplifiers is the oil capacitor. Here, we will discuss the pros and cons of buying oil capacitors with a specifications example of 0.05uF, 5000V.

1. Sound Quality: Oil capacitors are known for their superior sound quality. They offer a more natural and musical tone compared to modern electrolytic capacitors.

2. Longer Lifespan: Oil capacitors typically have a longer lifespan than other types of capacitors. The oil acts as a dielectric and helps to reduce the risk of capacitor failure due to electrolyte leakage.

3. Low ESR (Equivalent Series Resistance): Oil capacitors have a low ESR, which results in better high-frequency response and reduced power loss.

4. Stability: Oil capacitors are less susceptible to temperature and voltage fluctuations, making them more stable than other types of capacitors.

1. Cost: Oil capacitors are more expensive than other types of capacitors due to their more complex manufacturing process.

2. Size and Weight: Oil capacitors are larger and heavier than other types of capacitors, which can make them more difficult to install in some amplifiers.

3. Maintenance: Oil capacitors require periodic maintenance to ensure that the oil level remains adequate. If the oil level drops too low, the capacitor may fail.

4. Availability: Oil capacitors are less commonly available than other types of capacitors, making them more difficult to find and purchase.

In conclusion, oil capacitors offer several advantages when used in tube amplifiers, including superior sound quality, longer lifespan, low ESR, and stability. However, they also come with some disadvantages, including higher cost, larger size and weight, and the need for periodic maintenance.

If you are building or restoring a high-end tube amplifier and are looking for the best possible sound quality, an oil capacitor may be worth the investment, despite its higher cost and maintenance requirements. However, for more budget-conscious amplifier projects, other types of capacitors may be more practical and cost-effective.

Details:

All sides are shown. 0.05MFD / 5000VDC 10% 0F50-503 Capacitors are for vacuum tube amplifiers. With original paper wrap from bulk order no box. Light oxidation on terminal threads, normal for fifty years of storage.

Meager tested for leakage at 500VDC both negligible. The body is about 2.25 long and 0.91 diameter. Tested for capacitance 0.050uF. All audio offerings are laser micro-marked to deter parts pirates.

part #: 0f50503 prices

• $34.99-$153.00

specifications vintacapacitor:

• brand: Plastic Capacitors Inc
• mpn: 0f50-503
• model: 0.05uf
• part type: Oil Tube Amplifier
• country of origin: United States

general vintacapacitor:

• Vintage Audio Video > Vintage Parts Accessories > Vintage Capacitors
• condition: Open box

offer vintacapacitor:

• started: February 14, 2026
• availability: In Stock
• options: Ship-to-home
• sold: 0
• best offers: True
• quantity: 1

payments vintacapacitor:

• other
• wallet: Google-pay
• credit card: Visa

shipping vintacapacitor:

• cost: $7.95
• type: Calculated
• carrier: USPS
• transit: 6-10 Days
• class: Standard
• service: USPS Ground Advantage

returns vintacapacitor:

• policy: No Returns

seller vintacapacitor:

• # reviews: 112
• city: Thiensville, Wisconsin
• rating: 100.0%

Plastic Capacitors Inc 0F50-503 Is Similar To:

• Plastic Capacitors Inc Cp70b1ef106v Vintage Gudeman Sc-8007 Capacitor 10 Mfd 600 Vdc 2 (38.4% similar) SC-8007 CP70B1EF106V. RMS can not offer combined shipping or discounts on as the price reflects fees and import charges. 10 FD 600 CDC. Low starting bid and no reserve. Sold as is, please see high-res photos for more details. The cap has been tested with a meter only see results below...(May 23rd, 2024)
• Plastic Capacitors Inc Lk-30-405 Vintage 4 Mfd 3000 Vdc 4uf 2 (44.7% similar) The cap has been tested with a meter only see results below. Low starting bid and no reserve. Sold as is, please see high-res photos for more details. RMS can not offer combined shipping or discounts on as the price reflects fees and import charges. 4 FD 3000 CDC...(May 23rd, 2024)
• Plastic Capacitors Inc 300-503 Vintage Lk-300-503 0.05mfd 30 Kvdcw (53.8% similar) ...(January 2nd, 2025)
• Plastic Capacitors Inc 0f30-254 1 Nos Inc 25uf 3000vdc 3kv Audiophile Glass Oil Capacitor (39.6% similar) 25UF 3000VDC 3KV .1% audiophile glass Plastic in oil capacitor. This capacitor has a round shape and measures 32.63MM in diameter. The capacitor is constructed with glass and has a maximum operating voltage of 3000VDC. It is a high-quality capacitor made in the USA by Plastic capacitor...(May 11th, 2025)
• Plastic Capacitors Ep30-405 4 F 3000vdc Oil Filled Capacitor Model Lot Of 2 (43.6% similar) Item works as it should comes with both for price listed Dem if you only need one...(June 30th, 2025)
• Sprague Tva-1804 2 Atom 20uf 475 Vdc Capacitors Paper And Plastic Used (34.6% similar) Tested at 21.6 uf and 22.9...(November 17th, 2025)
• Plastic Capacitors Lq30-254v High Voltage Filter Capacitor 0.25 F 3kvdcw (40.7% similar) With a capacitance of 0.25 f and voltage rating 3 CDC, this capacitor is suitable for filtering smoothing electrical signals in variety applications. The set Includes 5 units of the LQ30-254V model, offering a reliable and high-quality solution for vintage audio video systems. The Plastic...(December 6th, 2025)
• Plastic Capacitors Inc Of80-103 Nos 01 Uf 8000 Volt Cap By (57.7% similar) ...(May 11th, 2026)