Western electric 437a tube data book

In addition to a variety of unusual topologies not seen in commercial audio since the 1930s, there is an analysis of the paths audio currents take in working circuits theres more going on than the usual. Western electric 437a capacitor for tube amplifier x14 this buyitnow auction is for fourteen 14 pcs. Giant balloon nos nib western electric 281a power amplifier tube 5 v 46 281a. Vintage vacuum tubes and bulbs western electric 437a, 3. Western electric 437qa capacitor 4uf for tube amplifier. Western electric diagrams, schematics and service manuals download for free. We electron tubes general bulletin index and general information. The tubes may be mounted in either a vertical or horizontal position. See my other buyitnow auctions for more we equipment the free listing tool. The we437a pair is used as output tubes generating 1w with high current 30 ma.

The 301a vacuum tube is designed to supply direct current from an. We test your order before shipment for world class performance and the best tone possible. A collection of electron tube specifications from the western electric library. The complete western electric vacuum tube library ebay. It is quite interesting how some tube types go through cycles of being discovered by amplifier builders then overly hyped and finally almost forgotten and rarely seen anymore. Western electric rectifiers the holy grail whats best. Brooks audio western electric 437a tube preamp for sale. The western electric 336a tube was used in speech input equipment and the 106 type amplifier. Electron tube data sheet western electric 437a electron tube description the 37a electron tube is a high. S military power transformer and chokesthe 2 small 9pin sockets.

The text material has been selected and arranged with the view of guiding the circuit designer most readily to the western electric tube which will meet his requirements for particular applications. Free western electric diagrams, schematics, service. Western electric tubes nos vacuum tubes for sale tubes. We is the standard on which almost all highend tubes are designed from. A collection of we datasheets from the 40s through the 60s, including 100 through the 300b 17mb pdf file 301a through the 373a 14mb pdf file 300a300b data sheet highres, 4. Tube 437a or rohre 437a id22122, triode, vacuum, magnoval 9pins, b9d and rfifstage shown. The heater is centertapped to permit operation from a 6. Unfollow western electric 437a to stop getting updates on your ebay feed. For more western electric circuits, visit the loop distortion presentation that i gave to the bay area tube enthusiasts on june 1st, 2003. Brooks audio western electric 437a tube preamp with tango. Eight of these tubes were put into service in 1938 in the 500 kilowatt transmitter, xera, at ciudad acuna, mexico, designed by jim weldon. This tube has a 5939 date code and is offered with its oem sleeve as unused note the tube data penciled on each sleeve. Western electric 4 pin ballast tube, very difficult to find, used, loose stock from long ago.

The tube was developed by bell laboratories in 1937. Data sheet containing technical information, illustrations and photographs of western electric 437a electron tube. Vintage western electric 205d tennis ball vacuum tube ebay. Western electric transmitting vacuum tubes classic. In 19, western electric developed the high vacuum tube, thereby ushering in the electronic age. Nos western electric 437a, black plate, 1950s, d getter. The 37a electron tube is a high figure of merit triode with an. I have always been curious about the very expensive western electric 422a 3. Ok, we lowered the price to be the same as those guys offering dvds with 40 or 50 datasheets. These are very rare, and we were lucky enough to get 4 pcs in stock nos in original boxes. Brooks audio we 437a line stage preampthis preamp was built by mr. Western electric company inc new york manufacturer in usa. Along the way, the company made tremendous breakthroughs. Like their new old stock counterparts, this new tube generally wins all 300b comparisons in every sonic category.

Unable to test except for filament continuity, good. Western electric 5 pin rf triode tube, used, reboxed in wrong we box stock from long ago. Western electric vintage vacuum tubes for sale ebay. Spheres western electric northern electric vacuum tube page.

The following listing of tubes are those special tubes and encompass tubes used in special communications equipment, broadcasting, amateur radio and the audio industry. Western electric 437a capacitor for tube amplifier x14. Western electric tubes click on links below to check stock 400a 400b 401a 403a 403b sub for 6ak5 404a5847 407a 407b 20v filament 408a 20v filament 409a 412a 4a 4b 415a 416b 416c 417a5842 418a 420a5755 421a 422a 423a 426a 427a 428c 429a 430b 430c 431a 432b 435a 436a 437a 438a 439a 442a 443a 446a 447a 448a 448b 449a 450a. Includes pictures of tubes and complete operating characteristics and curves. For this month i selected the western electric 417a. I have tried literally all of them from 5u4g 3 amp filament current to the 5r4gys 2 amp filament current gz 32, 34, 37 by the likes of mullard, phillips and rca. Typical operation as given in the data sheet is 150v and 22. The company subsequently invented the loudspeaker, successfully brought sound to motion pictures, and introduced systems of mobile communications which culminated in the cellular telephone. Then the bigger sister, the 437a on the left besides the undisputed high transconductance drama. Used in little dot headphone amps and some tube buffers.

The complete western electric vacuum tube library books. Visit for amazingly low discount prices on vintage western electric transmitting vacuum tubes. This is a comprehensive reference for collectors and users alike. Steel electrical metallic tubing emt when customers call with a sudden need for steel emt beyond your instock quantity, you can take the order with confidence. Nos nib western electric usa jw6028 408a gray plate get vacuum tube. Transmission engineering and data electron tube data section ab46.

Western electric tube data hardtofind data for 44 western electric tube types 205d, 300b, 350b, etc. Closely matching quad rare nos western electric 437a audio triode tubes24. Western tubes highquality, americanmade emt is always readily available from a warehouse near you. Brooks audio we 437a line stage preamp this preamp was built by mr. I am offering the vintage western electric we 437a audio preamp tube displayed in the photo. Western electric 437a electron tube billington export. The 300b tube has the bayonet pin so located that it may also be mounted in a western electric loom, 115b or similar socket. We are proud to offer our dvd book, the complete western electric vacuum tube library by james cross. Price new from used from paperback, 1952 please retry.

Documentation that may have come with the tube will include a data sheet of electrical specifications such as. S t a n d a r d electron tube data sheet western electric 420a electron tube description the 420a electron tube is a doubletriode having separate indirectly heated cathodes. The western electric brand has been resurrected in the united states, and they have been producing 300bs for several years now. Western electric 102g tube vacuum tube amplifier 100l 102d western electric scans0017250 vacuum tube applications data a 102g resistance text.

Despite the crazy hype around western electric and every product baring that name, nos we 417a tubes can still be found at tube dealers. Western electric power tubes listed at western electric preamp tubes listed at. The output level of the amplifier when operating with a no. They sound amazing in my singleended tube amplifier using 80 as rectifier. Tube world stocks one of the most extensive inventories of we tubes on the planet. Besides some oxidation to the pins, this tube is offered in good physical condition displaying no internal loose matter. Over 350 us patents pertaining to tubes assigned to western electric.