Choosing the right resistor for your amplifier project mojo. As i said above, the folks at audio asylum steered me toward carbon comps. Caddock uses unique resistance film technologies and process technologies to create solutions for performance demanding applications. Unique film and process technologies create solutions for harsh environments, high. Mills audio resistors thlaudio web pages for audio parts by. When selecting a resistor, i keep a magnet close by, if it sticks it stays out of the audio signal path. Thepath audio resistors in the 10 watt range are top dog a slightly warm balance detail the best out there. The book gives an overview of the design, use and production of resistors. However, my own wilson audio sophia 3s conveniently have an access cover to a pair of mid and treble driver protection resistors, and this provides an uno. Aug 21, 2010 low noise resistors,metal oxide,metal film and metal glaze are the first choice for low level circuits.
Make offer ward leonard noninductive resistor 1600 ohms 200 watt 5% tolerance brand new resistors caddock 7. Originating from japan and no longer in production, shinkohs tantalum taf are commonly regarded as the best resistors in the world. Designing with mp series resistors caddock digikey. Designing with caddocks mp series tostyle heat sink mountable power film resistors. One more thing to consider is the power rating of the resistor. Apr 28, 2012 resistor noise is often specified as microvolts noise per volt of applied voltage, for a 1 mhz bandwidth. Designing with caddock s mp series tostyle heat sink mountable power film resistors. The resistance of these carbon composition resistors can be. They are also used to adjust the frequency response in case it is needed to compensate for imperfections in other devices e. Jul 04, 2009 a really nice amp can be built from the mouser catalog. High end audio and video equipment, speakers and amplifiers, use caddocks type mp, ms, mk and tf resistor products.
Avoid any resistor using steel in the leads or end caps. The product line consists of over 250 models, including high voltage resistors, current sense resistors, chip resistors, high. Full text of caddock general catalog 1989 see other formats caddock high performance film resistors general catalog 23rd edition caddock high performance film resistors caddock electronics is commited to the development of advanced resistor technologies and to the production of film resistor products of the highest performance. Thermal noise is the predominant source of noise for resistors. Its a great time to upgrade your home theater system with the largest selection at. Mills audio resistors made in usa these resistors were originally designed for the audiophile to upgrade the crossover networks in custom built loudspeakers. The resistance color bands on the darker colors were also a little hard to read, blue looked a lot like green, red looked a lot like orange. Custom resistors and resistor network solutions are also available. They are a lower cost alternative to the zbulk foils from charcroft. Mission statement caddock high performance film resistors. Ive been using the vishay bulk foil resistors for years. They have since found their way into many kinds of equipment used to audiophonically reproduce music and sounds very close to what is heard in a live performance. Buy caddock mk2 series radial power film resistor 100k.
Buy caddock usf 300 series solder metal film fixed resistor 500k. What resistors and capacitors do on a audio circuit. Mills brand resistors mra series are wirewound noninductive nonmagnetic. About 10 years ago, a friend constructed three sets of pots for my crosby modified spectral dmc 10 preamp, all using 39 position techlabs silver contact switches, but using three different brands of resistors, vishay, holco and resista. Buy caddock mp915 series to126 radial fixed resistor 200m. Caddock manufactures precision resistors and resistor networks. For high ohmic values and especially when used as say anode or screen loads,higher wattage and voltage ratings are beneficial. Caddock uses unique film and process technologies to create solutions for harsh environments, for high power density, and long term stability. Mills resistor in stock at parts express with free shipping. Buy 600 piece resistor kit online at low prices in india.
I also swapped the emitter power sand resistors with caddock power film. Browse our latest through hole fixed resistors offers. Mills audio resistors thlaudio web pages for audio parts. Bulk foils have for many years been the holy grail of resistors for audio. Caddock mk2v precision thick film resistors hifi collective. They have since found their way into many kinds of equipment used to audiophonically reproduce music and sounds very close to what is heard in a. Myself and others have measured them on average under 34 of 1%. Perhaps the proper question is what is the best resistor for a particular application. Choosing the right resistor for your amplifier project. Ime riken carbonfilm resistors obscure detail relative to caddock. Kaiser cj publishing a good indepth reference resistor book. Replacing magnetic metal film resistors roderstein in my power amps adcom with nonferris metal film resistors did add extra details on top without any other changes. That was a shocking difference to both my pocket book and to my ears. Capacitors are used to separate dc from ac signals basically bias from audio.
New to hificollective are these amazing bulk foil resistors in a to218 to247 housing from powertron. Resistor theory and technology, felix zandman scitech the most up to date resistor book, written by the founder of vishay. We carry many excellent audio grade brands of resistors to suit all occasions. Best brand and types of resistors and caps the gear page.
The 12w variants are 20ppm most reasonably priced quality resistors are 100ppm and 1% tolerance. Caddock electronics distributor digikey electronics. Jun 10, 20 mills brand resistors mra series are wirewound noninductive nonmagnetic. Im looking at using the ms series on the power supply side of things instead of mills. Caddock ms series thick film resistors are available at mouser electronics. A really nice amp can be built from the mouser catalog. Low noise resistors,metal oxide,metal film and metal glaze are the first choice for low level circuits. The effects of 100% noninductance and nonmagnetism guarantee an incredibly clear, warm sound quality. Ill also be putting an order in for the tx2352s from texas components. I already own both omnibooks, but id gladly buy such books, even if i already read all the articles.
Use caddock mk2 for plate resistors and vishaydale rn60 or rn55 for cathode and grid resistors. Caddock resistors are available at mouser electronics. Another area of the amp circuit that should not contain carboncomp. Where to buy caddock ms resistors diy audio projects. Caddocks high performance resistors are used across the board. In some cases noninductive resistors emitter and non. Excellent resistors for crossovers, tube amp bias circuits because they are available in 5w and 12w values. Caddock general catalog 1989 publication date 1989 topics resistor. Caddock mk2v precision thick film resistors thick film resistors radial leaded, precision metal film from caddocks have been around for many years now and have been recognised as excellent sounding resistors in audio. Constructed with caddocks micronox resistance films fired. Sprague 715p or wima fkp series caps are quite nice.
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