What are Jupiter copper foil paper & wax capacitors?

Jupiter Copper Foil Paper & Wax Capacitors go far beyond a mere copper foil version of the standard tubular HT Aluminum design. Every aspect of the capacitor construction was evaluated during the 4-year development process. Even the smallest details were addressed which resulted in significant improvements in sonic performance.

What type of capacitor is used in a radio circuit?

Paper caps are the most abundantly used type, found in all areas of the radio circuit for general coupling, decoupling, and filtering. They are non-polarity sensitive, with values typically ranging from .001uF to .47uF. Most of these capacitors are clearly labeled with both value and voltage rating, with the actual measured value being quite close.

Where can I buy a vintage radio capacitor?

Companies that cater to vintage radio collectors include Antique Electronic Supply and Just Radios. General suppliers such as Mouser and Allied carry capacitors along with thousands of other parts. If you don't have a schematic, you can often read the value of a capacitor from its case. Different types have different markings.

What shape is a capacitor on a radio?

By convention, these shapes are a square, a triangle, and a semicircle. (In older radios, the can may lack coding and you will have to consult the radio's schematic to determine what each wire is connected to.) The following photo shows the value markings on the side of a four-unit metal-cased capacitor.

What is a molded paper capacitor?

The values of molded paper capacitors will be larger, similar to other paper capacitors, such as .01 or .02 mfd. Capacitance values are expressed in units called farads, named after the British physicist Michael Faraday. The capacitors found in radios and TVs have values in tiny fractions of a farad.

Can electrolytic capacitors be replaced?

Replacing electrolytic capacitors is one of the most common ways to repair (and maintain) vintage electronic gear. This article will explain what these capacitors do and discuss a few different approaches for replacing them. What are Electrolytic Filter Capacitors?