Matched Pair Of 0.033uF 33nF 400V PIO Capacitors - USSR NOS K40-Y9 / K40-U9 For Vintage Audio & Tube Amps | Crystal Sound Quality
Matched Pair Of 0.033uF 33nF 400V PIO Capacitors - USSR NOS K40-Y9 / K40-U9 For Vintage Audio & Tube Amps | Crystal Sound Quality
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Matched Pair Of 0.033uF 33nF 400V PIO Capacitors - USSR NOS K40-Y9 / K40-U9 For Vintage Audio & Tube Amps | Crystal Sound Quality

4.5 stars out of 240 reviews
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1080 ratings

About this item

Audio enthusiasts and tube amp builders, listen up! This is a matched pair of vintage USSR paper-in-oil (PIO) capacitors – model K40-Y9 or K40-U9. Rated at 0.033uF (33nF) and 400V, they're New Old Stock (NOS) and known for their warm, \crystal\ sound in high-end audio circuits. Perfect for restoring old tube gear, guitar amps, or DIY audiophile projects. Each capacitor is tested and matched for consistent performance. Made in the Russian Federation, these are the real deal for anyone seeking that classic analog tone. If you're into vintage electronics or want to upgrade your sound, these caps are a fantastic find.
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4.5 out of 5 stars
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