Originally it used stc4300a tubes a british we300a licence. What is the abbreviation for command, control, and communications countermeasures. This handbook of data on all rca tubes has been compiled to meet the requirements of electronic engineers for tube information which can be kept uptodate. The system c3m collects, gathers and provides fast information necessary for resolving. The c3m tube was originally housed in a black metal sleeve, which can be easily removed to reveal a beautiful mesh plate pentode that, to me, looks very much like a coin base em7 compactron tube. Built specifically for the german post, these are special quality 0 hour pentodes for use in af and rf circuits. C3 is a software platform built specifically for the thermal processing industry to help ensure furnace compliance to any number of industry requirements. The wide glass tube envelope is 32 mm in diameter, and excluding the b8b base pins. C3m provides you all the data and tools to interact with department and institutional improvement and assessment processes. C3g c3m philips siemens telefunken pentode 10,000 hour special quality petode designed for af and rf circuits good driver tube for 300b amplifier, see glass audio issue 198, page 18 ypsilon pst100 mk2 preamplifier greece 2014 shindo vosnerominee 2006 preamp yamamoto a063 amp 2010 c3m tested on sofia curve tracer. If you cant find what you need here, try duncans tube data sheet locator.
Hearing aid set to compass test mode 1, unless stated otherwise. I think the distortion spectrum of the c3m used in this way is very favourable. A 300b design, published in hifilehti magazine in 2000. An external 24vac 1a wall wart is stepped up to 250vac. Line preamp, opt based, siemens c3m tube simple line preamp with siemens c3m deutsche post pentode in triode mode. My amplifier is a modified ladyday 2, which started with a 6sl7 srpp driver, which i modified to a 6sl7 mu follower this change gave a significant improvement. An external 24vac 1a wall wart is stepped up to 250vac by using a step down transformer backwards. D 062019 c3m0065090d silicon carbide power mosfet c3m tm mosfet technology nchannel enhancement mode features c3m sic mosfet technology high blocking voltage with low onresistance. If there is one enemy of long distance calls, its signal loss, and noise. Xray properties of elements electron binding energies xray energy emission energies fluorescence yields for k and l shells principal auger electron energies. Im building a amp using c3gtriode with gyrator load to drive a 845. The most common shorthand of command, control, and communications countermeasures is c3m. Vacuum tube valve audio projects diy audio projects. I like c3mdriven 300b very much, have had an amp like that running for about 6 years.
First i was afraid i needed rx to the choke because the gain of a penthode is the slope mav multiplied by rl, since the choke is not a linear resistance but a. Regarding the rmul resistor, it obviusly biases the dn2540,about 7v 31,60,220 in your top schematic. C3m system focuses on the initial prevention and preparation phases as well as response and recovery phases. C3m connected in penthode, just 1,5v is needed on its grid for same swing on load. I then had some advice from thorsten and modded it to use a triode strapped d3a with a 10m45 ccs set at 10ma. C3g as driver for 300b posted by horny on june 18, 2006 at 14. C3m as abbreviation means command, control, and communications countermeasures. May 19, 2008 for what its worth i remember reading somewhere that the siemens c3m pentode makes an ideal driver for the 300b triode output tube. C3m is developed with easyto use modules, creating a flexible system for use in any career center environment.
When it comes out very far, it looks very nice, but then you need to. Analyzer technical analysis pdf file 12 pages model 400 standard tube tester tube data sheet pdf file. Substitutes are given as a guide only please refer to original manufacturers data sheets to ensure that a substitute is safe and appropriate for your application. Includes information, activities and exam questions. All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. Thanks to frank philipse for supplying the above pdf datasheet. A tube pre amp can deliver this without a problem, for transistor pre amps more of a problem. Ok i know the potential troubles, but it sims very well 16ma200v will be the starting operating polnt approx 3,2v grid bias through lithium battery i have a couple of questions. What is shorthand of command, control, and communications countermeasures. As such, the tube is the result of a moneynoobject investment. From highspeed connectivity solutions that reduce power usage to fieldterminated fiber connectors that enable fast, onsite installation to modular fiber management systems that provide scalability for your fiber network, 3m data center solutions can expedite deployment while improving your bottom. Vacuum tube valve audio projects diy audio projects photo. Tube c 3m or rohre c3m id18755, vacuum pentode, loctal8, b8g sylvania, 1938 and shown. Line preamp, opt based, siemens c3m tube homebuilt hifi.
Bar code scanners and touch screen monitors can be implemented in many modules to improve efficiencies of the. Jan 16, 2012 i like c3m driven 300b very much, have had an amp like that running for about 6 years. They were used in audio repeater amplifiers for long distance. Its convenient, looseleaf form permits the revision of data on existing tubes and the addition of data on new tubes as they are made available. Of course the devil is in the details and yamamotosan seems to have a knack of extracting the essence of live acoustic music without a tubey sound in the negative sense. Hi, the c3g will work okay as driver for a 300b, it needs to be used wired as triode, this will give, when ccs or choke loaded a gain of around 40. Later it was changed to stc4328a in pentode mode ala the we91b amplifier. C3m means command, control, and communications countermeasures. Get a 16 page datasheet from out website, go to techcorner and click to scanned datasheets. Tube data sheet later r series tube data sheet pdf file 89 series and 385 tube data 6 mb pdf file 1939 updated tube list 4. Tube 3s4 or rohre 3s4 id431, vacuum pentode, miniatur7pinbase b7g, usa 1940 and poweroutput shown. I hope you enjoy and please like comment and subscribe.
Individual series number on each tube check for a 16 pages. Information about c3g and c3m these were low noise audio tubes, made by valvo and siemens, exclusively for the german post. Glow in the dark audio sean casper single ended ad1. Downloads, supreme instruments manuals, tube data, and. C3m end of forum contributions about this tube you reach this tube or valve page from a search after clicking the tubes tab or by clicking a tube on a radio model page. The primary function of c3m is to provide direct links between reliable sources of kinetic information kinetic modeling software, databases, and literature and commonly used cfd software such as mfix, fluent, and barracuda with minimal effort from the user. D 062019 c3m0065090d silicon carbide power mosfet c3m tm mosfet technology nchannel enhancement mode features c3m sic mosfet technology high blocking voltage with low onresistance high speed switching with low capacitances fast intrinsic diode with low reverse recovery qrr halogen free, rohs compliant. This information should not be considered complete, up. Our software effectively eliminates virtually all the humanerrorprone manual processes associated with compliance, allowing you to focus more of your. The c3m is a general purpose pentode with a 125 ma heater requirement for series. For what its worth i remember reading somewhere that the siemens c3m pentode makes an ideal driver for the 300b triode output tube. Anyone have any experience in building an amp that uses the c3m tube to drive the 300b.
C3m is a chemistry management software focused on computational modeling of reacting systems. Measured using a normal hook and standard bte coupler. The 1u5 is a diode pentode designed for detection and first audio voltage amplification in light weight portable radio equipment and the sensitivity of the pentode allows for a low anode voltage thus saving weight on the ht battery. C3 data has built a transparent business model which engages online consumers with messages that they want to receive, forged direct relationships with isps and respect their clients data to provide a sustainable, scaleable and ultimately profitable revenue stream for data owners. Technical data typical data obtained through standard pure tone measurements. With almost datasheets and the visitor counter indicates over 4000. New old stock pre amp compatible pentode 10,000 hour tubes from siemens. C3m a software tool serving as a support for crisis managers and other persons being involved in crisis management and planning. D 062019 c3m0065090j silicon carbide power mosfet c3m tm mosfet technology nchannel enhancement mode features new c3m sic mosfet technology new low impedance package with driver source pin high blocking voltage with low onresistance fast intrinsic diode with low reverse recovery qrr. Tube depot carries a selection of c3g c3m pre amp vacuum tubes. Information about c3g and c3m these were low noise audio tubes, made by valvo and siemens. Lawrence berkeley national laboratory introduction. Special is the shunt psu, where mosfets are currentsourcing neon stabilization oa tubes actually feeding the amp stage.
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