Sprague Vitamin Q Paper in Oil Capacitors

The best sounding capacitors for audio powersupplies, decoupling stages, speaker crossover filters, etc are Paper/oil capacitors. These film capacitors use oil soaked paper as di-electric material and are therefore well damped and very smooth and natural in sound. The capacitors I sell were made for the militairy and thus have very good (mil-)specs, are made very precise, and because of that sound best of all. Bandwidth is very high, and distortion very low. A special version of the paper in oil capacitor is the Sprague Vitamin Q, they are rated best in sound by many people.

The milspec Paper in oil capacitors I sell sound better than any modern new production like Jensen or Audionote, not even speaking of any plastic audiotype, like Auricaps, Hovland, MKP, or whatever. We (also independent people) did a lot of tests with them, and they win all the time. If you like to try them, I give a better sound guarantee. If they do not sound better then what you have, you can send them back to me, for a full money refund (excluding shipping).

About Sprague Vitamin Q capacitors:
Sprague Vitamin Q capacitors are developed for 'state of the art' military and scientific applications. They feature:

They are not cheap, even back in the 1900's they already cost a lot. But many D.I.Y. tube audiophiles worldwide still feel that NEW OLD STOCK Vitamin Qs are the best signal capacitors ever made. Stock is decreasing fast, below is listed what I still have available.


TypeDescriptionStateBrandNumber in stockPrice each (Euro)
1.5nF/600VAxial, Metal housing, 1.8 cm long, 0.7 cm diameterNOSSprague Vitamin Q24.75

10nF/200VAxial, Metal housing, 196P10392S4 mil codes, 2.3 cm long, 0.8 cm diameterNOSSprague Vitamin Q305.50
13nF/200VAxial, Metal housing, 2.1 cm long, 0.8 cm diameterNOSSprague Vitamin Q465.50
33nF/200VAxial, Metal housing, CP08A1KC333K codesNOSSprague Vitamin Q1206.25
36nF/1000VAxial, Metal housing, 196P36351079 codesNOSSprague Vitamin Q212.50
39nF/300VAxial, Metal housing, 2.3 cm long, 1.1 cm diameterNOSSprague Vitamin Q397.50
56nF/300VAxial, Metal housing, 2.3 cm long, 1.0 cm diameterNOSSprague Vitamin Q298.50
68nF/200VAxial, Metal housing, 2.3 cm long, 0.8 cm diameterNOSSprague Vitamin Q567.50

150nF/200VAxial, metal housing, 196P15422S4 codes, 1.0 cm diameter, 3.5 cm longNOSSprague Vitamin Q89.50
150nF/300VAxial, metal housing, one side connected to house, both sides wire leads. 186P15493S1 mil codes. 1.4 cm diameter, 2.8 cm longNOSSprague Vitamin Q1212.50
160nF/100VAxial, Metal housing, 3.0 cm long, 1.1 cm diameterNOSSprague Vitamin Q166.50
330nF/300VAxial, metal housing with plastic cover, one axial lead is connected to the housing, 86P33493S3 codes, 1.5 cm diameter, 3.4 cm longNOSSprague Vitamin Q
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12513.50
470nF/100VAxial, metal housing with purple plastic cover. 1.5 cm diameter, 3.7 cm long. Great coupling and filter capacitor, especially for transistor or low voltage tube ampsNOSSprague Vitamin Q1811.50
680nF/200VAxial, metal housing. GA51223L1 mil codes. 1.4 cm diameter, 4.8 cm longNOSSprague Vitamin Q
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24214.50
680nF/200VAxial, metal housing. 196P68492S2 mil codes. 1.7 cm diameter, 4.2 cm longNOSSprague Vitamin Q
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49814.50

1uF/100VAxial, metal housing. 1.5 cm diameter, 4.7 cm long. One lead connected to house. 86P10501S3 mil codes. Great coupling and filter capacitor, especially for speaker crossovers, transistor or low voltage tube ampsNOSSprague Vitamin Q
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611.50
1uF/100VAxial, metal housing. 1.5 cm diameter, 4.7 cm long. Isolated house. Red colour isolation. 13C2-10591 mil codes. Great coupling and filter capacitor, especially for speaker crossovers, transistor or low voltage tube ampsNOSSprague Vitamin Q
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2414.50
1uF/100VAxial, metal housing. 1.5 cm diameter, 4.7 cm long. Isolated house. 96P10591S2 mil codes. Great coupling and filter capacitor, especially for speaker crossovers, transistor or low voltage tube ampsNOSSprague Vitamin Q
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2314.50
1uF/200VAxial, metal housing. CP07, CP08, CP09, and BLC mil codes, 1.9 cm diameter, 5.5 cm longNOSSprague Vitamin Q
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28419.50
1uF/200VAxial, metal housing. 196p mil codes, 1.9 cm diameter, 5.5 cm longNOSSprague Vitamin Q
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28419.50
1uF/300VAxial, metal housing, 1.9 cm diameter, 6.8 cm long, 196P10593T16 mil codes. Capacitor between two axial connections, house isolatedNOSSprague Vitamin Q
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1924.50