
	Where results make sense

Topic: Polystyrene capacitor

	POLYSTYRENE AND FOIL CAPACITOR SPECIFICATION (Site not responding. Last check: 2007-11-02)
		The voltage shall be applied to each capacitor through its individual current-limiting resistor as determined from the formula R = 0.025/C, where C is the nominal capacitance in farads and R is in ohms.
		The capacitor body shall be rigidly mounted by the entire body length to the vibration test fixture.
		Capacitors shall be visibly examined for evidence of mechanical damage.
	www.americancapacitor.com /capacitors/polystyrene/Sspec.htm (510 words)

	Polystyrene Capacitors are still available., Seacor, Inc.
		May 1, 2002 - Although polystyrene materials are no longer being fabricated, polystyrene capacitors are still available with operational voltage ratings to 630 V. Available capacities range from 47 pF to 0.1 microfarads and tolerances to one percent and lower.
		Although polystyrene materials are no longer being fabricated, Seacor's in-depth capabilities furnishes these capacitors with operational voltage ratings to 630V, capacities ranging from 47 pF to 0.1 micro F and tolerances to 1% and lower.
		Seacor, Inc. was established in 1959 and is also a prime supplier of film and electrolytic capacitors, motor run and X-2 suppression capacitors in addition to a variety of standard, general purpose polyester and polypropylene film-foil as well as metallized units in addition to an assortment of power electronic devices.
	news.thomasnet.com /fullstory/8253 (468 words)

	Application Guide - Power Factor Correction Capacitors
		Capacitors are used in one of three basic ways: (1) as a means of discriminating between higher and lower AC frequencies, (2) a method of storing or releasing energy, and (3) as a method of discriminating between AC and DC.
		By definition, a bypass capacitor is a device employed to conduct an AC current around a component or group of components, and it must offer negligible opposition to the frequencies being bypassed.
		In this type of application, the capacitor is used as a temporary storage cell until the time constant is reached or, in a sample and hold circuit, until the next sample is taken.
	www.electrocube.com /support/bullet3.asp (760 words)

	Electrochemistry Encyclopedia --- Electrochemical capacitors
		In order to describe "electrochemical capacitors" and to explain their function and applications, it is necessary first to consider the nature of an ordinary electrostatic capacitor or a "condenser" as it used to be called, and thence the meaning of the term electrical capacitance.
		The capacitance of a capacitor is proportional to the area of the contact plates and the dielectric constant of the medium between the plates, and it is inversely proportional to the separation between the plates (see the Appendix).
		Electrochemical capacitors are a special kind of capacitor based on charging and discharging the interfaces of high specific-area materials such as porous carbon materials or porous oxides of some metals.
	yces.case.edu /ed/encycl/art-c03-elchem-cap.htm (4612 words)

	Untitled Document
		Polarity: Capacitors that may be safely operated with only one DC polarity are called "polar" Capacitors which can be operated without regard to polarity are "non-polar".
		Coupling Capacitors: Capacitors are often used to block different DC voltages in successive stages of audio equipment.
		This function requires the capacitor to have low leakage, low to moderate self inductance, and to be able to handle the AC and DC levels involved.
	www.diyguitarist.com /Misc/CapacitorFieldGuide.htm (2897 words)

	Polystyrene Capacitors
		Polystyrene capacitors are noted for their low distortion, low dissipation factor, and excellent temperature stability.
		Typically used in equalization and tuner circuits.All types listed are axial leads and rated 600 volt.
		Open 10 AM to 5 PM CT Monday-Friday
	www.triodeelectronics.com /polcap.html (39 words)

	CapSite 2007 (Site not responding. Last check: 2007-11-02)
		Most capacitor types require that air and moisture are sealed out to prevent degradation or contamination of the dielectric and corrosion of the metal film.
		Film-foil capacitors are made of alternating layers of plastic film and metal foil, while metallized film capacitors have the metal vacuum deposited directly on the film.
		Ceramic capacitors are especially suitable for surface mounting due to their heat resistance, mechanical integrity, and the ability to make them in very small packages at low cost, for portable equipment.
	my.execpc.com /~endlr (3523 words)

	Guitar Effects & Audio/Music Electronics
		This spec is mostly applied to capacitors that deal with AC currents, or DC caps with large AC components (often found in switch mode power supplies, and industrial equipment such as motor drives etc.).
		Pushing the capacitor beyond its ratings (either voltage, polarity, or ripple current) will increase the pressure in the cap until it either vents (and loses electrolyte) or explodes.
		Polystyrene caps cannot tolerate high temperatures (85 degrees Celsius max.), so they are not available in the metallized variety.
	www.muzique.com /cap_faq.htm (3007 words)

	High-Voltage Capacitors, make your own! HV
		One disadvantage to using oil in home-made capacitors is that the tape or glue used to bond the assembly must be oil-resistant.
		Whether a capacitor is enclosed or exposed, discharge paths must be wide enough to avoid arcs to the case, adjacent plates, terminals, connections, or components.
		Warp the capacitor "sandwich" around a non-conductive mandrel or spool--ideally made of plastic or a glass rod (be careful not to break a glass rod).
	www.uoguelph.ca /~antoon/circ/hv/hvcap/hvcap.html (4545 words)

	Neve BA283 preamp section variations
		C1 = 6.8uF or 10uF or 22uF Tag Tantalum Capacitor
		C4 = 80uF or 100uF 25v Electro Capacitor
		C6 = 80uF or 100uF 25v Electro Capacitor
	www.jlmaudio.com /neve_BA283.htm (138 words)

	GenRad 1412-BC Stable Polystyrene Decade Capacitor - Bell Electronics
		Stable Polystyrene Decade Capacitor, 50 pF to 1.11115 µF
		Owing to its fine adjustment of capacitance, the 1412-BC is a convenient variable capacitor to use with an impedance comparator.
		The polystyrene dielectric used in the decade steps is necessary for applications requiring low dielectric absorption and constancy of both capacitance and dissipation factor with frequency.
	www.bellnw.com /products/7427 (254 words)

	PN-Junction tuned VFOs (Site not responding. Last check: 2007-11-02)
		The variable trimmer capacitor was a 5 to 20 pF unit that I purchased from Digi-Key a couple years ago.
		On Jan 26, 2003, two polystyrene 100 pF caps were added to this VFO to enhance frequency stability.
		I might add replace an NP0 with a polystyrene capacitor (negative temp coefficient) for a VFO that drifts up in frequency and a silver mica (positive coefficient) for a VFO that heads down in frequency as it warms up.
	www.qrp.pops.net /PNJ_SUP.htm (1365 words)

	Champions Technical Support Library hardware concepts: C
		There are two basic types of capacitors; polarized (which must be properly aligned when placed in a circuit) and non-polarized capacitors (which can be placed in a circuit with either contact oriented to the circuit).
		While a Ceramic Disc capacitor may be replaced with a Polystyrene capacitor (with the same parameters), its leads must be similar in length and diameter to the original particularly for use in RF circuits.
		Capacitors of this type are good for audio applications that require small size and low power.
	home.earthlink.net /~champions/h_c.htm (3294 words)

	SPI: About the Industry: Definitions of Resins
		This plastic was developed in 1926 and was promptly put to work in liquid form as enamels, paints, lacquers, and similar coatings for automotibles, refrigerators, stoves and similar products--still the largest use for alkyds.
		Styrene monomer and the polystyrene resin made from the monomer remained as chemical curiosities for 80 years following their discovery in 1845.
		Polystyrene is also widely used in other packaging and foodservice products, such as trays, disposable plates, cutlery and tumblers.
	www.socplas.org /industry/defs.htm (4802 words)

	Capacitors
		Second only to power cords, capacitors are the most failure-prone components in old radios.
		Manufacturing multilayer ceramic chip capacitors include surface mount capacitors from the 0402 case size to larger high voltage units (up to 20kV) for commercial and high reliability applications.
		The capacitors act as a local reserve for the DC power source, and bypass AC currents from the power supply.
	stochasticoscillator.flogoscillator.com /capacitors (588 words)

	Messing Around Investigation 3: The Timer
		The capacitor used here is 1 microfarad, one-millionth the size of the huge capacitors we have been using.
		This is exactly analogous to increasing the size of the capacitor and increasing the size of a resistor that slows the flow of electricity.
		Then the voltage of the charge trapped in the capacitor is related to the time the jumper was falling.
	hop.concord.org /amu/amu.mess.act3.html (1066 words)

	The NASA Two Dimensional Asymmetrical Capacitor Thuster by Jean-Louis Naudin
		Based on the geometry of the capacitor, its material properties, and ambient conditions, the force can be predicted and utilized to move the entire capacitor and its mounting in a predictable direction.
		The capacitor module also includes a second conductive element axially spaced from the first conductive element and of smaller axial extent.
		The capacitors are fixed on a 440 mm diameter frictionless rotor, and the HV is sent through the main rotation axis.
	jlnlabs.imars.com /lifters/act/html/2dacap.htm (768 words)

	[No title]
		Obtain an equation for the magnitude and phase of the of the capacitor voltage as a function of frequency.
		Submit schematics and plots of the capacitor voltage (magnitude and phase) as a function of frequency.
		Use the "sweep" capability of the signal generator to obtain capacitor voltage magnitude data on the screen of the digital oscilloscope.
	www.ececs.uc.edu /~phillips/caps.doc (1828 words)

	[No title]
		Capacitors: A Field Guide to Types and Habitats Harry Bissell A capacitor stores a direct current electrical charge.
		Sometimes "polar" caps are combined in special ways to allow a limited ability to cope with revering polarity are called "bipolar" Ripple Current: The amount of AC current a capacitor can withstand and how often it can withstand it.
		Teflon is impervious to moisture and has dielectric absorption of around.02% Applications Notes: Capacitor "Self Inductance" The inductance of a practical capacitor limits the frequency range that it can be used for.
	www.musicsynthesizer.com /txt/caps2.txt (3012 words)

	Polystyrene Capacitor Suppliers - pink fish media
		In addition there's another resistor in parallel with the capacitor - this models leakage current, in addition to this add another RC compination in parallel with the C bit and you have now modelled dielectric absorption.
		In real capacitors the DA element is actually multiple sets of RC components, bringing non-linearities and circuit response effects that can totally ruin fast and slow dynamic performance.
		With the polystyrene caps I've found the sound amazingly clear and crisp, just how I like it, though dry in the bass (again to my taste).
	www.pinkfishmedia.net /forum/showthread.php?t=297 (871 words)

	What's all this soakage stuff, anyhow?
		The earliest manifestation of DA was found when old experimenters had a capacitor such as a Leyden jar (a glass jar with metal foil electrodes inside and out) charged up to a large number of volts.
		The model for a capacitor with soakage is a big capacitor, in parallel with several small capacitors in series with various large resistors (see the figure).
		A 20,000-pF capacitor made of teflon-insulated wire might have, at 1 or 2 kHz, as much as 20 pF in series with 8 M. A cable made with poor plastic might have 50 times worse than this, such as 1000 pF in series with 160 k.
	www.elecdesign.com /Articles/ArticleID/6096/6096.html (2392 words)

	LC PIC meter
		A capacitor with a precise value, 1020 pF, is put in parallel to C by means of a relay.
		What matters is that if the 1020 pF capacitor is precise, then there is only one value for L (the 68 uH choke) and only one value for C (the 680 pF capacitor) which can determine simultaneously these two frequencies, it doesn't matter their absolute values.
		The capacitor under test is connected in parallel to the 680 pF capacitor.
	py2wm.qsl.br /LC_meter/LC_meter-e.html (897 words)

	AudioCaps.com
		Polycarbonate film used to make polycarbonate film capacitors has been discontinued for several years, only a few companies have remaining stocks of polycarbonate film which is expected to be exhausted in the next year or two.
		Polycarbonate film capacitors are preferred to polypropylene capacitors when available because they have a very balanced, musical sound with very little coloration.
		Polystyrene (also called styrene, styroflex, or styrol) are in many areas superior to polycarbonate, and are mostly new old stock as are our polystyrene, the polystyrene film has needed for manufacture of Polystyrene capacitors has not been made for years.
	www.audiocaps.com (348 words)

	Homebrew Polystyrene drinking cup capacitors
		A capacitor works on the principal of have two conductive plates which are very close and are facing each other.
		When a voltage is applied to one side of the capacitor,the electrons will attract approximately the same voltage on the other plate of the capacitator because of the electrical charge that is built up on the first plate.
		A Note on Polystyrene Capacitors Usually chosen for for applications requiring tight tolerance coupled with high stability.
	www.geocities.com /geoffegel_99/foamcapacitors.htm (619 words)

	Tales From The Tone Lounge; Vintage Advertising-Capacitors
		Some capacitors were advertised as having 'low derating' (their capacitance value wouldn't drift all over the place) under higher operating temperatures.
		Even coupling capacitors are much smaller; I have a very old capacitor decade box with Mallory units that resemble medium to large sized fire crackers (the.2uF/600VDC is 3/4" round X 2 1/2" long while the.4uF/600VDC clocks in at almost 1" round X 2 3/4" long).
		These capacitors are then offered to the Hi-Fi or guitar crowd as a panacea for your amplifier that lacks in 'tone'.
	www.tone-lizard.com /capacitors.html (1388 words)

	Inductors
		Many hams still build all their own equipment, everything from antennas to hand-made variable capacitors, which are almost carbon copies of their manufactured counterparts.
		Beware of the tolerance factor which in some capacitor types is quite high, a good option is to use a polystyrene capacitor which has small tolerance values but don't worry if these aren't available, it's not too critical at the experimental stage.
		Therefore, by placing our unknown coil-known capacitor tank circuit near the dip meter's coil and tuning, we will get a dip in the meter reading when we tune the dip meter to a certain frequency.
	www.qsl.net /ct1efl/inductors.htm (729 words)

	diyAudio Forums - Polystyrene or polypropylene, given the choice? (Site not responding. Last check: 2007-11-02)
		On a different note, I noticed that Wima is one of the only readily available film and foil Polypropalene capacitor available, and its priced high enough as to be about the same as the Dayton Film and Foil capacitors, and only slightly less than the Solens.
		Finding good quality polypropylene capacitors in the right form factor and values tends to be rather more difficult, and I often have to compromise until I can get a better quality part.
		If you want to try polyester caps you could always add a low value polystyrene capacitor in parallel to it and see how that sounds.
	www.diyaudio.com /forums/showthread.php?goto=newpost&threadid=92948 (686 words)

	The VinylZone: Analogue Addicts Phono Pre
		The capacitors in the RIAA network are Philips non-inductive 1% tolerance polystyrene capacitors (again, Maplin stock).
		The coupling capacitor should be as good as possible, a WIMA MKP4 (or Siemens stacked film) bypassed with a 10nF polystyrene will likely do the trick.
		* Note, a 1% polystyrene capacitor of suitable value should be connected across the MM input to achieve the correct loading of the cartridge.
	www.deadwaxcafe.com /vzone/phonopre.asp (1877 words)

	Polystyrene Capacitors Manufacturers On B2BChinaSources.Com from China Polystyrene Capacitors Manufacturers & Taiwan ...
		All qualify products of polystyrene capacitors made in China & Taiwan, connecting reliable Chinese manufacturers, suppliers, exporters, factories & contract manufacturing companies with global buyers.
		Polystyrene capacitors supplied by Chinese manufacturers with the most competitive prices and superb quality.
		Polystyrene Capacitors made by creditable manufacturers and you are welcome to Add Your Products Here to attract more potential clients if you happen to be doing business in the same field.
	www.b2bchinasources.com /China-Manufacturers-13829/Polystyrene-Capacitors.html (335 words)

	Polystyrene Capacitor On B2BManufactures.Com from China & Taiwan Polystyrene Capacitor Manufacturers & China ... (Site not responding. Last check: 2007-11-02)
		Lists of Taiwan & China Polystyrene Capacitor manufacturers & suppliers that are carefully selected to ensure high directory accuracy.
		They supply top quality polystyrene capacitor with their own brand names or for OEM, ODM, custom-made and contract manufacturing services.
		Polystyrene Capacitor - Cheng Tung Industrial Co., Ltd.
	www.manufacturers.com.tw /electronics/Polystyrene-Capacitors.html (297 words)

Try your search on: Qwika (all wikis)