CapacitorsCapacitors are passive devices that are used in almost all electrical circuits for rectification, coupling and tuning. Also known as condensers, a capacitor is simply two electrical conductors separated by an insulating layer called a dielectric. The conductors are usually thin layers of aluminum foil, while the dielectric can be made up of many materials including paper, mylar, polypropylene, ceramic, mica, and even air. Electrolytic capacitors have a dielectric of aluminum oxide which is formed through the application of voltage after the capacitor is assembled. Characteristics of different capacitors are determined by not only the material used for the conductors and dielectric, but also by the thickness and physical spacing of the components.
Capacitor - 1500V, .1µF, Oil
Non-inductive polyester and oil caps, these film capacitors use oil-soaked polyester as di-electric material and are smooth and natural in sound.
Capacitor - Auricap, 400V, Film, 1uF
Sonically transparent high resolution film capacitor.
Capacitor - MusiCap, 100V, Film & Foil Polypropylene
Critical loudspeaker crossovers deserve to have a transparent product specific to the application. Speaker MusiCaps, with their thicker leads, are a revelation in well-designed crossover networks. While a fully MusiCap-ed crossover is supreme, just installing MusiCaps in the tweeter circuit will reveal much additional detail and nuance. Many prominent high-end loudspeaker manufacturers have been using MusiCaps in their top models for years.
Starting at $21.65
Capacitor - Peavey, 55V, 4700µF, Axial Lead
Peavey 4700 µF @ 55V polarized electrolytic capacitor with axial leads. 7/8" diameter x 2" length.
Most Often Needed Radio Diagrams, Volume 1
by M. N. BeitmainRadio Diagrams and Servicing Information from 1926 to 1938. Shows circuit diagrams for 600 of the most commonly found radios of that time. A valuable resource for restorations.
Radio, Wireless Telephone and Wireless Telegraph Equipment
High quality reprint of early (1920s) Montgomery Ward catalog of wireless equipment. 32 pages of radios, kits, tubes and books as available 70 years ago. Sorry, you can't order from this catalog! 0.2 lbs, 7" x 9.5", 33 pages.