Operation with zero grid bias simplifies associated circuitry by eliminating the bias supply. While the eimac data sheet for the 8875 does show a useable output of 587w in typical operation, i was typically getting close to a kw with 100w of drive. The eimac 8873, 8874, and 8875 are compact externalanode, ceramicmetal triodes intended for use in zerobias classb amplifiers in audio or. Eimac catalog first page, datasheet, datasheet search, data sheet, datasheets, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, semiconductors home all manufacturers by category part name, description or manufacturer contain. Nos nib eimac 4pr400a 8188 transmitting vacuum tube 4400a. Through recorded waveforms or sound fragments but truly. 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 88743cx400a7 is a triode tube can be used in broadcast and is desired for their simple, yet highly stable design. Varian eimac datasheet, cross reference, circuit and application notes in pdf. If the amplifier filament transformer only produces 5 volts, it may reduce the life span of the yc257 since the filament will be 10% lower than specified. These are readily available from eimac and svetlana. Cpi mpp division, eimac operations, 607 hansen way, palo alto, ca 94303. Where possible, eimac data sheets are provided, as eimac tubes are used by so many hams. Fa842, 843, 844, 845 4 output section item symbol test condition min.
Eimac application bulletin datasheets context search. Operation with zero bias simplifies circuitry and cathode driven operation is attractive since a power gain as high as twenty can be obtained. Emmc datasheet, emmc pdf, emmc data sheet, emmc manual, emmc pdf, emmc, datenblatt, electronics emmc, alldatasheet, free, datasheet, datasheets, data sheet, datas. The companys first products were transmitting tubes with the high performance and stable design features that were required by the ham radio community. Of course the output was always a little band and antenna match dependant, but i almost always ran it full bore. Nsc universal 4bit shift register,alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. Item description nos nib eimac 4pr400a 8188 transmitting vacuum tube. Triodes 25t325a3 data sheet 194425t, 25t, 325a3 25t data sheet 195125t 35t data sheet 193535t 35t data sheet 193635t 35t data sheet 194535t 35tg data sheet 194535tg 35tg data sheet 1955tg 50t data sheet 193450t 75t data sheet75t 75th data sheet 194475th 75th data sheet 195275th 75tl data sheet 194675tl 75tl data sheet 195275tl. This is the single best favor you can do your 32s1 s3 or kwm2 transmitter. Pdf 40x30 4cx3020unc 3500dia sk2400 eimac application bulletin sk2410 varian sk2406 eimac application bulletin 20 sk2400 rs tube vacuum tube amplifier.
Ao4304 30v nchannel mosfet general description product summary vds 30v the ao4304 combines advanced trench mosfet technology with a low resistance package to provide id at vgs10v 18a extremely low rdson. The eimac 3500z is a compact power triode intended to be used as a zerobias classb amplifier in audio or radiofrequency applications. It8758e datasheet, it8758e pdf, it8758e data sheet, it8758e manual, it8758e pdf, it8758e, datenblatt, electronics it8758e, alldatasheet, free, datasheet, datasheets. A1048 2sa1048 components 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. The triode has lower power gain than tetrodes, but can achieve output power up to 1. The 3cx400a78874 is a compact highmu power triode intended for use in zero bias class b amplifiers in audio or rf applications. Revised april 2004 post office box 655303 dallas, texas 75265 3 logic diagram positive logic 11 a0 9 1 a1 7 a2 6 gs 14 eo 15 12 2 3 1 4 2 5 5 ei 4 7 3 6 10 0 pin numbers shown are for the d, dw, j, n, ns, and w packages. Highperformance 56w audio power amplifier generaldescription the lm3875 is a highperformance audio power amplifier capable of delivering 56w of continuous average power to an 8x load with 01% thd a n from 20 hz20 khz the performance of the lm3875 utilizing its self peak instantaneous temperature ke spike protection circuit. Ge insulgrease sk1920 8873 sk1920 eimac 8875 8873 6pr6 varian r468 iso varian eimac text. Under the leadership of the founders, bill eitel and jack mccullough, the company grew and expanded to meet the needs of the u. The emac 3500z is a compact power triode intended to be used as a zerobias classab2 amplifier in audio or radiofrequency applications. Web site dedicated to ham radio hf dxing, contesting and cw.
Here is some data on the power triodes that might be usable by amateurs for radio projects. The compact highpower triode intended for use in zero bias class b amplifiers in audio. Eimac 8875 amplifier tubes dentron mla radiparaccessori. Of 6cl6s that are available on the market, this is the best there is. The filament voltage of the 3cpx1500a7 is specified by eimac to br 5. Eimac catalog first page, datasheet, datasheet search, data sheet, datasheets, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, semiconductors. The 15e is a miniature uhf power triode designed by eimac the eitelmccullough company of san bruno california usa in 1940 for use as an oscillator in the first american airborne radar, the asb search radar. A comparison of the published orginal eimac 8875 data and the published svetlana 4cx400 data sheet. Eimac sk410 eimac sk406 hr6 volts ampere watts watts 80 600 m adc w w db db twotone grid current 2. Was in working service 2009 but has been sitting around since.
Eimac, now part of cpis microwave power products division, was founded in 1934 as eitelmccullough, inc. In addition, groundedgrid operation is attractive since a. Overview of tasks in performing the conversion, five specific needs must be addressed. Eimac 8875 datasheet, cross reference, circuit and application notes in pdf format. R468 iso g641 sk1920 sk1920 eimac 8875 dow key microwave ge. The eimac 8875 ceramic triodes are rugged little tubes, but. A comparison of the published orginal eimac 8875 data and the published svetlana4cx400 data sheet. Singletone power input cathode driven class ab2 maximum ratings. Under the leadership of the founders, bill eitel and jack mccullough, the company. The rf parts 3500zg transmitting tube is the highest quality transmitting tube that money can buy, for decades rf parts has been testing 3500z tubes, and we only sell the best 3500zg that pass our tube testing. Formal, controlled specifications may be obtained from cpi for use in.
313 291 1422 1018 676 1356 710 625 146 1228 844 370 1295 485 579 731 1541 814 352 1439 670 1317 1438 128 563 999 882 715 1051 86 1372 1291 1135 405 606 470