Yes, I Love Short-O-Matic Capacitors

[TimFox]

Specifically, at frequencies where the AC voltage across the capacitor is significant compared with the total voltage in the circuit, e.g. near the corner frequency for an RC low-pass or high-pass filter.

[schmitt trigger]

I see they come in different colors.

 But they forgot the blue ones. Which would provide the exact tonal quality if someone is playing R&B, Bluegrass or soul music. 

“Feeling the bluessss, baby, feeling the blues, yeah!”

[madires]

Buy a can of "Audiophoolery Blue"! 

[HerbTarlek]

It's good to know that they are mil-spec. so they will be able to withstand the combat stress while you play your guitar in a tank battle. 

Mitch's latest design is made in the USA to military specs. They still have the kraft paper-in-oil construction like the vintage Russians, but these are hermetically sealed metal tubes with glass ends so the value will not drift over time.

https://www.stewmac.com/electronics/components-and-parts/capacitors-and-resistors/emerson-paper-in-oil-tone-capacitors.html?utm_source=google&utm_medium=shopping&utm_campaign=2021-06-gp&gclid=EAIaIQobChMIhtrrrL738AIVjeDICh2XyAHEEAQYAyABEgJffPD_BwE

Problem is, the branch of the military to whose specs these are made is the Great Navy of the State of Nebraska.