(Description):
Up for sale is a beautifully preserved, investment-grade matched 4 vintage Soviet K42Y-2 (К42У-2) permanent metallized Paper-In-Oil (PIO) tone capacitors. These were manufactured in the USSR in December 1990 (90 12) to strict military-industrial specifications, sporting the prestigious diamond military acceptance stamp and original factory red-tipped markings.Take a close look at the premium construction: these feature a robust, glass-sealed cylindrical metal body that completely isolates the oil-saturated paper dielectric from atmospheric moisture, ensuring immense thermal stability and lifetimes of reliable service.Among international High-End audiophile builders and boutique guitar masters, the Soviet K42Y-2 series is celebrated as a secret weapon for upgrading instrument electronics. The 0.1uF capacitance value is the absolute legendary Holy Grail specification for classic vintage Fender Precision Bass guitar tone circuits. Because the 160V variant is the most ultra-compact enclosure available for this value, it is highly coveted by luthiers because it fits flawlessly into tight, shallow, or crowded guitar control cavities where bulkier high-voltage caps simply cannot go. It is also excellent for line-level signal coupling in custom preamps and boutique DIY audio builds.

Tonally, these genuine 1990 PIO capacitors are legendary for providing an authoritative, visceral low-end weight, remarkably liquid and rich mid-ranges, and a beautifully rolled-off, organic three-dimensional soundstage without any harsh high-frequency artifacts.KEY FEATURES & CONDITION:

• Genuine Soviet Military Spec: Pristine factory markings, crisp capacity codes, and authentic December 1990 "Diamond" quality control stamps directly on the green metal sleeves.
• Factory Matched 4 pieces: Unused components pulled straight from the same original factory storage tray, sharing identical December 1990 date codes for symmetric stereo tracking and balanced guitar electronics.
• Ultra-Compact Profile: The sleekest 0.1uF body size available, providing maximum clearance inside tight guitar pot cavities.
• NOS / Mint Vintage State: New Old Stock condition. Flawless glass seals, perfect cylindrical bodies, and pristine, full-length original axial wire leads that have never seen a drop of solder.
• Drop-In Tone Upgrade: Instant premium upgrade for vintage guitar tone pots, bass electronics, and tube-based signal paths.

• SHIPPING & PREMIUM PACKAGING:
  Vintage audio components require elite care during international transit. Each capacitor will be individually cushioned in multi-layered soft wrap, safely secured inside a rigid protective sleeve, and dispatched in a thick outer box packed with dense shock-absorbing padding. Worldwide shipping with an insured, premium tracking number provided immediately.Please Note: Buyers are responsible for any applicable customs fees, duties, or import taxes in their respective countries.