0.022 uF K40Y-9 400V or 630V or 1000V  PAPER IN OIL 
PIO AUDIO Capacitors. Guitar upgrade tone .
kits to choose 
 USSR Millitary Capacitors K40U9 

K40Y-9 400V, PIO Russian capacitors. With low capacities, this voltage is most loved by our favorite guitar maniacs, who for the last money will not buy food for their beloved dog but will definitely buy K40Y-9 400V 0.022uF 

Great for Les Paul's 59 tone, SG's, ES 335, Tele Deluxe, etc. and other guitars using Humbucker pickups.

Also pay attention to the most rare edition of this capacitor, K40Y-9B 400V / 0.022 uF  . This tropical version (edition), has a heavy-duty case and can work in aggressive environments with high temperature and humidity.

Heavy-duty copper-plated, then nickel-plated and lacquered body, with ends welded with thick metal washers with glass insulators.

K40Y-9 have spraying on the ends of a dielectric roll. It has the same “non-inductive”  technology for terminating the leads as Metalized paper in oil. (In K40U-9, the foil on both sides of the roll is extended to 1 mm and low-melting solder is deposited on it). Thus, capacitor K40U-9 has non-standard, as is customary for paper / foil (paper / foil) capacitors, supplementary electrodes having only two points of contact with aluminum tape, but multiple contact in one hundred places of foil.

K40Y-9 400V - the most popular Russian audio PIO capacitors.


New old stock, working, all capacitors is tested, 

Capatience 0.022 uF
Voltage 400 V or 630 V or 1000 V
Tolerance +- 10%

0.022uF 400 V K40Y-9 Papier dans l'huile PIO

 Condensateur MISE À NIVEAU GUITARE 
MISE À NIVEAU DE LA SON GUITARE 

The K40Y-9 are high quality PIO capacitors made for military. The conductor is made of aluminum foil and thedielectric is oil saturated paper, glass sealed in a metal body. These capacitors provide excellent sonic characteristics, high tolerance is kept within a wide temperature range.

Made in USSR. 

The parcel will be shipped to you by Ukrposhta airmail with track number.

measurements for pair and quartets
K40Y-9  & K40Y-9 B   0,022uF   400v

K40Y-9 capacitors are a type of vintage audio capacitor that was manufactured in the former Soviet Union, in Ukraine by Epsilon Capacitor Plant  Odesa, , during the 1960's-1990's. These capacitors are known for their use in various audio equipment, including amplifiers, radios, and other electronic devices. They have gained a reputation among audiophiles and vintage audio enthusiasts for their unique characteristics and sonic qualities.

Here are some key features and details about K40Y-9 capacitors:

Paper-in-Oil Design: K40Y-9 capacitors are constructed using a paper-in-oil (PIO) design. This means that the capacitor's dielectric material is typically paper, and it is impregnated with oil to improve its performance and longevity. The use of oil helps to reduce heat generation and maintain stable capacitance values over time. Capacitor plates are made of aluminium foil.

Vintage Aesthetics: K40Y-9 capacitors are recognized for their distinctive appearance, often featuring a cylindrical metal can without or with colored paint and markings that indicate their capacitance and voltage rating. The colored paint on the capacitors can vary, with common colors being pink, orange, and grey.

Capacitance Values: These capacitors typically come in a range of capacitance values, in the range from 470 picofarads (pF) to 1 microfarad (uF). The exact capacitance value is usually indicated by markings on the capacitor's body.