MALLORY GEM-621 Nos Mf Capacitor Treble Bleed Cap .002 600V GEM-622

( Brand: Mallory ), ( Manufacturer Part Number: GEM-621 ), ( Part Type: Capacitor Cap ), ( Country/region Of Manufacture: United States )

Review MALLORY Nos .002 Mf 600v Capacitor Vintage Treble Bleed Cap Rare

Mallory Gem-621 NOS MF 600V Capacitor Treble Bleed Caps (Gem-622)

The Mallory Gem-621 NOS MF 600V Capacitor Treble Bleed Caps, specifically Gem-622, are a set of vintage electrolytic capacitors designed for use in guitar amplifier circuits. These capacitors have gained a reputation among tone enthusiasts for delivering a unique and desirable sound.

Each Gem-621 capacitor is rated for a voltage of 600 volts and a capacitance value of 22pF at 105 F (40 C). They are non-polarized, meaning they can be installed with either electrode facing the voltage source. These capacitors are mounted in a metal can with a threaded top, making them easy to install and access.

These treble bleed caps are designed to maintain the high-frequency response of guitar amplifiers. When used in the "treble bleed" circuit, they ensure that the high frequencies are not attenuated when the volume control is turned down. This results in a more consistent and detailed tone across all volume levels.

These Mallory Gem-621 NOS (New Old Stock) capacitors are not only highly sought after for their tonal qualities but also for their vintage appeal. They are a great addition for those building or restoring classic guitar amplifiers or for those looking to upgrade their existing amplifier circuit.

The NOS status indicates that these capacitors are new and unused, ensuring their reliability and longevity. The electrolytic material inside these capacitors has not been aged, unlike some used capacitors, which can lead to degraded performance or even failure over time.

In conclusion, the Mallory Gem-621 NOS MF 600V Capacitor Treble Bleed Caps (Gem-622) are a must-have for those seeking a classic, detailed, and consistent guitar tone. Their vintage design, reliability, and tonal qualities make them a popular choice among guitar amplifier enthusiasts.

Pros and Cons of Buying Mallory Gem-621/622 Capacitors for Treble Bleed Circuits

Mallory capacitors, specifically the Gem-621/622 series, are popular choices for treble bleed circuits due to their tonal qualities. However, like any electronic component, they come with their advantages and disadvantages. In this analysis, we will discuss the pros and cons of buying Mallory Gem-621/622 capacitors for treble bleed circuits.

1. Tonal Character: Mallory capacitors are known for their unique tonal qualities. They provide a smoother and more musical high-end response compared to modern capacitors. This is due to their paper insulation and slight leakage, which adds a desirable warmth and presence to the sound.

2. Vintage Sound: For those seeking a vintage sound, Mallory capacitors are an excellent choice. They are commonly used in vintage guitar amplifiers and have been praised by guitarists for their ability to recreate the classic tone of old amplifiers.

3. Durability: Mallory capacitors are known for their durability. They can handle high voltages and have a long lifespan, making them a reliable choice for treble bleed circuits.

4. Availability: Mallory capacitors are widely available from various retailers, both online and offline. This makes it easy for enthusiasts and builders to source these components for their projects.

1. Cost: Mallory capacitors, especially the Gem-621/622 series, can be more expensive than modern capacitor alternatives. This higher cost might be a deterrent for some builders and hobbyists.

2. Size: Mallory capacitors are larger than modern capacitors due to their paper insulation. This can make them less ideal for applications where space is a concern.

3. Leakage: While the slight leakage of Mallory capacitors contributes to their tonal qualities, it can also lead to issues with voltage stability in some circuits. This might require additional circuit design considerations or the use of voltage regulators.

4. Fragility: The paper insulation used in Mallory capacitors makes them more fragile than modern capacitors. They can be more susceptible to moisture and physical damage, which might require additional handling care during installation and storage.

Mallory Gem-621/622 capacitors offer unique tonal qualities that make them an attractive choice for treble bleed circuits. Their durability, availability, and vintage sound make them a popular option among builders and hobbyists. However, their higher cost, larger size, potential leakage issues, and fragility are important considerations. Ultimately, the decision to use Mallory capacitors depends on the specific requirements and priorities of your project. If you value the unique tonal qualities and vintage sound, the additional cost and considerations may be worth it. Alternatively, if space, cost, or ease of use are more important factors, there are other capacitor options available that might better suit your needs.

If you are looking for a capacitor to enhance the tonal qualities and recreate the vintage sound of classic guitar amplifiers, Mallory Gem-621/622 capacitors are an excellent choice. However, consider the additional cost, size, and potential handling requirements before making a purchase. If these factors are a concern, alternative capacitor options with similar tonal qualities but more modern design might be worth exploring. Ultimately, the best choice depends on your specific project requirements and priorities.

Details:

These are 600 V DC rated 4 or -10% at .002 mF. I have a total quantity of two available these.

part #: gem621 prices

• $5.00-$10.50

specifications vintacapacitor:

• brand: Mallory
• mpn: Gem-621
• part type: Capacitor Cap
• country/region of manufacture: United States

offer vintacapacitor:

• availability: In Stock
• sold: 0
• quantity: 1
• options: Ship-to-home
• started: September 13, 2025

general vintacapacitor:

• Vintage Audio Video > Vintage Parts Accessories > Vintage Capacitors
• condition: New

seller vintacapacitor:

• # reviews: 480
• city: Grand Rapids, Michigan
• rating: 99.3%

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• policy: No Returns

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shipping vintacapacitor:

• carrier: USPS
• cost: $4.41
• type: Calculated
• class: Standard
• transit: 5-11 Days
• service: USPS Ground Advantage

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