Technical inquiries it is the objective of the western electric company to furnish. These tubes are a full wave rectifiers, electrically equivalent to the original western electric historical tubes. Tube amplifiers, schematics, parts, triode amplifiers. Applicationaudiofrequency amplifier in positions where power outputs of approximately ten watts or less are required at relatively low plate. Western electric power tubes listed at western electric preamp tubes listed at.
Spectra series switchboards are designed and manufactured to meet the stringent ge internal standards along with nema, nec, ul and cul require ments. So you can print this email just normally and keep it with your tubes. We electron tubes general bulletin index and general information. Western electric 256a vacuum tube classificationthree element, argon filled, gridcontrolled, of the american telephone and telegraph company, and the western electric company v. The complete western electric vacuum tube library ebay. Published by general electric research laboratory in november, 1959, this concise 24page booklet carried monographs by dr. Western electric was the first company to join in a japanese joint venture with foreign capital. It was started to be used among audio amplifier builders.
Fcc68 data cables telecommunication cable page 170412 v1. Typical operation as given in the data sheet is 150v and 22. 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 452a. It could be replaced by 350b in some cases but had a higher frequency rating. We are recommending the same values as western electric in their 1950 data sheet. To secure price and delivery information, contact your nearest graybar office. Data sheet containing technical information, illustrations and photographs of western electric 437a electron tube. Western electric 410 chickamauga avenue, suite 300 rossville, ga phone. Beampower aligngrid tetrode for use in afrf or local video amplifiers. A listing of the main graybar offices throughout the country is presented on page 16 of this bulletin. Spectra series switchboards offer a stateof theart design that provides the high quality, safety and reliability long associated with ge groupmounted switchboards. Fancher describing the quantum physics behind the tunnel diode along with applications for this technology. Western electric 421a datasheet pdf download adobe acrobat pdf reader. The da 100 is roughly equivalent to the common 845, a high power triode.
The ed, usually produced by valvo or siemens, is similar to a 2a3 but considered far superior by many listeners. The delightful type 717a is known as a little doorknob for the doorknob see 703a. The winged c 6c19n tube also called 6s19, 6c19pi or 6c19p tube is a small power triode used in some highend amplifiers. Western electric diagrams, schematics, service manuals. Other pl254w data sheetpl254w, pl254w, pl254w 606 phantasatron data sheet 6be6 data sheet ck1027 data sheetck1027 vt4c gl211 1939 data sheetvt4c, vt4c, vt4c. You will find thousands of tubes or valves with interesting links. Western electric diagrams, schematics and service manuals download for free. As with other western electric and stc tubes you should expect long, reliable service with these tubes. The alltriode ri25 uses western electric 437a voltage amplifiers, the legendary german ed low mu triode as a drtver, and the british dai 00 for output tubes. The plate curve not in the datasheet could be obtained from here. 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. 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. Western electric classic short 9 pin tube, miniature tetrode, excellent input tube, used as a triode in many high end tube amplifiers.
Western electric 437a electron tube billington export. A collection of electron tube specifications from the western electric library. Over 350 us patents pertaining to tubes assigned to western electric. Designed by western electric, the 717a was made in large. This is a comprehensive reference for collectors and users alike. Here is a marvelous little publication on the brand new technology of tunnel diodes. Western electrictm reserves the right to make changes to the products described in this document in the interest of improving internal design, operational function andor reliability. Equivalent to western electric we 437a, this tube is quiet and has a very high gm which makes it suitable for low signal high gain applications like a phono preamp stage. Spheres western electric northern electric vacuum tube page.
Western electric classic short 9 pin tube, gas filled 100v exceptionally stable voltage regulator has kr85 doping very difficult to find, new boxed stock from long ago. The 437a electron tube is a high figure of merit triode with an indirectly heated cathode. Though 40 watt is possible, this is a peak value only, and no normal working point. Warranty information and return policy warranty period. Advance electron tube data sheet western electric 437a electron tube. If you want ultimate quality, with lifetime same or better than western electric, we recommend emission labs 300b. In 1899, it invested in a 54% share of the nippon electric company, ltd. Although intended for grounded grid operation, the tube can also be used in other configurations which are more common in audio. Western electric 300a and 300b vacuum tubes classificationmoderate power, filamentary triodes for class a service these tubes are identical except for the location of the bayonet pin in the base. For this month i selected the western electric 417a. September 16, 1955 intermediate transistor data sheet western electric ga52830 transistor development model 2012 this transistor is being made by western electric company in limited quantities for. Transistor data sheet western electric 2n66 transistor diitteii wiwtieu to shell n i. Ok, we lowered the price to be the same as those guys offering dvds with 40 or 50 datasheets. Tube data and patents are in adobe acrobat pdf format.
Here youll find manufacturers data sheets and curves for many popular and some not so popular electronic valve types. Description layout of iiouftinii holes the 2n66 is a pnp alloy transistor hermetically. Western electric tubes click on links below to check stock 300a 300b triode 301a fullwave rectifier 306a 307a 308a 309a 310a 310b pentode 311a 311b pentode 3a 3c 3ca 3cb 314a fullwave rectifier 316a 323a 323b 328a 329a 331a power triode 336a 337a 338a 339a 345a 346b 346c 347a 348a 349a 350a 350b 351a 352a 353a 354a 355a 357a. Please consult western electric company, incorporated, radio division, 120 broadway, new york, for current applicable design and availabilitv. It was designed primarily for the output amplifier of the l3 tandem two stage amplifier. This tube has five years guarantee, of which you get an online confirmation by email, after registration. If you cant find what you need here, try duncans tube data sheet locator.
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