Vdr metal oxide varistors standard vishay intertechnology. Tube 7586 or rohre 7586 id6181, triode, vacuum, nuvistor and universal shown. Metal oxide varistors definition of varistor terms rated rms voltage, rated dc voltage the maximum designated values of power system voltage that may be applied continuously between the terminals of a device varistor voltage test characteristic that is used to classify varistors by type. Rca2cw4, 6cw4, and cw4 are highmu triodes of the nuvistor type, intended for use as. Heater characteristics and ratings absolute maximum. Spheres canadian test equipment site contains an extensive inventory of all kinds of new and used electronic test equipment, service parts, bargains, electronic parts and other items. Heater characteristics and ratings absolutemaximum. As you can see the nuvistor is considerably smaller than the 6af4a. Mc, and as an oscillator tube having military specification mile197a excellent stability. This is either a triode or tetrode valve of special design, which in the past was of americah origin, under the designation 6cw4. Ask factory for the current technical specifications before purchase andor use. S14k250 varistor 250vrms 14mm radial epcos inc datasheet pdf data sheet free from datasheet data sheet search for integrated circuits ic, semiconductors and other electronic components such as resistors, capacitors, transistors and diodes.
Foil strain gauges when attached to a specimen, produce very small changes in resistance typically 0. Hence, most of the considerations valid for the solid state preamble apply also to the nuvistor version, and i am not going to discuss them again. S14k150 varistor 150v rms 14mm radial epcos inc datasheet pdf data sheet free from datasheet data sheet search for integrated circuits ic, semiconductors and other electronic components such as resistors, capacitors, transistors and diodes. An193 use of rca7587 industrial nuvistor tetrode in. Usb series varistors are designed to protect the high speed data lines against esd transients. The 7586 was the first production nuvistor type and was introduced in 1959. This note discusses the use of the rca 7587 nuvistor tetrode in small signal highfrequency circuits. If you cant find what you need here, try duncans tube data sheet locator. Construction round varistor element, leaded coating. The 7587 is a sharp cutoff tetrode, which was released in 1961. Another repair option is to convert the circuit to use a transistor.
A nuvistor is a miniature vacuum tube in a thimble sized metal case. Competition to the transistor in this respect has been offered by the fairly recent nuvistor. Please have a look at the preamble article for more info. Construction refers to both basing size and the envelope hf means heater or filament voltage and current specifications. Recent listings manufacturer directory get instant. Storagetek sl500 modular library system simple network management protocol part number. Applications when strain gauges are used in compressive load transducer applications, which normally require more stringent accuracy requirements, a full bridge circuit is used with active gauges in all four arms of the bridge, figure 1. Rm3 series rotary stage rm3 design the design takes advantage of a single preloaded crossed roller bearing for the table movement. Overall outputs of less than 1mv on a common mode voltage of 5 volts may be. Nuvistor types rca7586 and 7587 were operated in a 15kc. Most nuvistors are basically thimbleshaped, but somewhat smaller than a thimble, and much smaller than conventional tubes of the day, almost approaching the compactness of early discrete transistor casings. Philips ecg 7587 sharp cutoff tetrode pictured in thumbnail introduced in 1959, the rca. Design and specifications are each subject to change without notice.
Mc, and as an oscillator tube having military specification mile1 97a excellent stability. Nuvistor tubes in radios history and applications for nuvistors. Gy 50 hybrid integrated amplifier design bartolomeo aloia realizzazione atto rinaldo gy 50 hybrid integrated. The entire top shell acts as the plate, with a ceramic band to isolate it from the typically grounded lower shell. The base is ceramic sealed to the metal case and five fine pins, on a 12 pin grid, form the connections and the electrode supports internally. This design approach eliminates the use of a dual bearing configuration thus improving on axial runout and wobble. Nuvistors were the latest tube development at just about the same time as the introduction of the first integrated semiconductor circuits. Numbers shown in light blue background are coldcathode tubes.
The most often used nuvistor in our list is at the moment the 6cw4 with 30 different models, followed by the nuvistors 7586 15 models and 6ds4 plus cw4 5 models each. The same information you find for the nuvistor 7587 and for many more. The rm3 rotary table utilizes a worm gear drive with available gear ratios of 90. The nuvistor from rca was a form of triode for use at vhf and built into a metal case just larger than a transistor. Yeonho, alldatasheet, datasheet, datasheet search site for electronic components and. Above is a photo of a siemens 8056 triode and an rca 7587 tetrode, alongside a 6dz4 6af4a b7gbased uhf oscillator triode valve which was typical of the valves the nuvistors were in competition with, so you can compare them. You can for instance click the nuvistor 7586 and you find photos of this particular nuvistor, base pictures, typical application schematic plus data sheets and you can click some models there below which carry such a nuvistor 7586. Varistor datasheet, varistor pdf, varistor data sheet, datasheet, data sheet, pdf. Most of these datasheets are in english except where noted otherwise. The metal oxide varistors offer a choice of varistor voltages from. Rca nuvistor reference pdf detailed article on nuvistors. The 6cw4 nuvistor from rca is a triode for use at vhf and built into a small metal case. Lm2599 simple switcher power converter 150khz 3a stepdown. A pair of rca 7587 nuvistor tetrodes used in the final amplifier can be operated with a power input of up to 712 watts.
Here youll find manufacturers data sheets and curves for many popular and some not so popular electronic valve types. Used in television receivers with series heater strings 6cw4 high mu triode, most common one in consumer electronics. Rca nuvistor series the vintage technology association. S14k150 varistor 150v rms 14mm radial epcos inc datasheet pdf. Unlike conventional tubes which are evacuated after assembly, nuvistors were assembled in a vacuum chamber by robotic equipment. Storagetek sl500 modular library system simple network management protocol snmp. Bulk on tape and reel on tape in ammopack fanfold the basic ordering code for each option is given in tables titled varistors on tape on reel, varistors on tape in ammopack and varistors in bulk. Very useful for canadian companies, schools, and experimenters that need access to sophisticated, low cost electronics. Philips ecg 7587 sharp cutoff tetrode pictured in thumbnail introduced in 1959, the rca nuvistor is a family of subminiature, high performance vacuum tubes housed in a ceramicandmetal envelope.
Tube 7587 or rohre 7587 id6182, screengrid tetrode, nuvistor and universal shown. The structure of the 7587 nuvistor tetrode also permits automatic assembly. Rsgbs 1969 vhfuhf manual using a 100% nuvistor lineup of 6cw4 rf amplifier. Net tube data here youll find manufacturers data sheets and curves for many popular and some not so popular electronic valve types. Most of the datasheets are in pdf format and some are links to other html pages. Numbers shown in light yellow background are used in seriesstring configurations. The first nuvistor to be produced by rca was the 7586. A test current of 1 ma dc is typically used to determine.
Nuvistor types rca7586 and 7587 were operated in a 15kc amplifier circuit and monitored. A siemens 8056 nuvistor triode and an rca 7587 tetrode, alongside a. Specifications for this tapper will be supplied on request. S14k250 varistor 250vrms 14mm radial epcos inc datasheet pdf. Vdr metal oxide varistors standard additional resources ordering information the varistors are available in a number of packaging options. The 7587 is an oddity, a nuvistor with an anode cap. The nuvistor was developed by rca and it was first introduced in 1959. The unique design enables these devices to meet the rigorous testing criteria of the iec 642standards. The very low driving power for these tubes is easily supplied by the tripler stage. Inside this tubes tiny shell is a pair of coaxial grids surrounding a heater and tubular cathode. Jbt6k48as jbt6k48as 240channel jbt6k47as jbt6k49as g8 g190 ic 3843 8 pin ic 7587 jbt6k47as g240 ic 3843 datasheet g188. The nuvistor is a type of vacuum tube announced by rca in 1959.