Emerson Custom Paper-in-Oil Capacitor
Best vintage-style upgrade for guitar and bass tone enthusiasts.
These Emerson Custom Paper-in-Oil capacitors are constructed using true vintage Kraft paper in oil construction, offering sonic characteristics comparable to discontinued vintage Sprague Vitamin Q capacitors. They feature a hermetically sealed metal tubular case with sealed glass ends for durability and reliability. Designed with classic vintage graphics, these components are non-polarized and come with sturdy 20 AWG copper-clad steel leads. They are frequently used with single coil pickups in guitar and bass applications, offering accurate performance with a standard tolerance.
$28.00
Owner Satisfaction
4.7
/ 5
Category Rank
62
/ 336
#62 in Capacitors
Price vs Category Average
-59%
Below average
Capacitance
0.047
/ uf
Who it's for
- Technicians prioritizing high-grade components for reliable signal integrity
- Guitarists seeking a smooth, vintage-inspired high-frequency roll-off
- Players desiring a more musical and nuanced tone knob sweep
Who should skip it
- Players wanting maintenance-free components for long-term durability
- Budget-conscious musicians looking for affordable wiring upgrades
- Owners of guitars with cramped or shallow control cavities
Performance breakdown
Vintage Sonic Accuracy
Captures the elusive, warm character of legendary Sprague Vitamin Q components.
Build Durability
Mil-Spec hermetic sealing ensures long-term reliability in demanding guitar electronics.
Installation Ease
Non-polarized design and sturdy leads make for a straightforward soldering process.
Aesthetic Authenticity
Classic graphics provide the perfect visual touch for vintage-inspired instrument builds.
Tolerance Precision
Standard ten percent tolerance delivers consistent, reliable performance for tone shaping.
Component Robustness
Heavy-duty copper-clad steel leads withstand repeated heat exposure during installation.
Key Specs
Capacitance
0.047uf
Voltage Rating
300v
Tolerance
±10%
Physical Size
Length: 0.875 inches x Diameter: 0.40”
Construction
True Vintage Kraft Paper in Oil
Leads
Sturdy 20 AWG Copper Clad Steel
Case
Mil-Spec Hermetically Sealed Metal Tubular Case with Sealed glass ends
Features
- Offers sonic quality comparable to vintage Sprague Vitamin Q capacitors
- Non-polarized design simplifies installation
- Durable Mil-Spec construction ensures longevity
- Classic vintage appearance for authentic builds
- Ideal for use in guitar and bass electronics
What customers say
Customers overwhelmingly focus on the exceptional quality and resulting sonic improvements delivered by this capacitor. Users report that the component provides a noticeably smoother, more usable tone sweep, especially when rolling off the high frequencies. Many reviewers highlight the clarity and warmth it brings to their instrument, calling it a worthwhile upgrade despite the premium cost. The consensus is that the superior construction quality translates directly into superior performance, making it a highly valued component for serious musicians seeking vintage inspired sound.
Know before you buy
Emerson Custom designed these capacitors specifically to replicate the sonic characteristics and construction of the legendary Sprague Vitamin Qs, offering that same vintage warmth and response.
No, these are non-polarized components. You can install them in either direction without affecting their performance or safety.
The 0.047uf value is a standard choice for many bass guitars and single-coil electric guitars. It provides a slightly darker, warmer tone roll-off compared to the 0.022uf capacitors typically found in humbucker-equipped instruments.
These capacitors measure 0.875 inches in length and 0.40 inches in diameter. While they are robust, ensure you have enough clearance in your control cavity before installation, especially if you are working with a cramped layout.
The hermetic seal with glass ends protects the internal paper-in-oil construction from moisture and environmental degradation. This Mil-Spec design ensures the capacitor maintains its performance and reliability over many years of use.
Still have a question?
Ask Hayley anything about this product before you decide.
Ready to buy?
$28