We310a these tubes were send to me for repair, complaint was the top caps. A collection of electron tube specifications from the western electric library. This, together with its low power consumption makes it particularly adaptable in portable equipment where compactness is essential. Does anyone have a list of settings for weco tubes on hickock 533 or 600 tube testers. We electron tubes general bulletin index and general information. 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. It is an impressive thing, measures about 12 12 inches tall, including the pins. Ee the peanuttube was also produced in canada by northern electric. I was wondering if anyone knows a site, or has information that might be interesting in this regard. Data sheet containing technical information, illustrations and photographs of western electric 437a electron tube. Western electric nos tubes aid in this process, providing interchangeable power nodes that can act as replacements for previously exhausted hardware. O n b u l b cathooe, suppressorgrid a upper internal shield. Stock changes daily and prices continue to increase due to the scarcity of most we tubes.
Tube tests as new and with balanced and very low noise. The 310a is one of the worlds most famous voltage gain stage pentode tubes. This tube, and the next to be described, are the types normally encountered by collectors. Youll notice the tube is taller than the doorway next to it, approximately 8 feet tall. The wide glass tube envelope is 57 mm in diameter, and excluding the b4a base pins is. The following listing of tubes are those special tubes and encompass tubes used in special communications equipment, broadcasting, amateur radio and the audio industry. Where it is necessary to operate the tube at or near the maximum plate current of 100 milli amperes, provision should be made for adjusting the grid bias of each tube independently, so that. When attempting to power a given device, power amps are essential in operating hardware uninhibited. This is a comprehensive reference for collectors and users alike. Western electric tubes click on links below to check stock.
There are no entries on the roll chart for weco tubes. Western electric came out with some good, but weird tubes that nobody else copied. I have this informatiom from an unofficial military information sheet about another 10v tube. Western electric tube settings for hickok 533dm tube tester. The specs on the inputoutput transformers which we looked up are telephone frequencies, 250 hz to 3k, but they go way up above 10k. The tube featured on this page is a western electic 320a. This data was made, after cleaning out all the old glue, and rebasing. Vacuum tube advance electron tube data sheet western electric 5847404a electron tube jlmax,h measureda t.
The average rectified current is 100 ma with a peak of 500 ma. They feature one we 310a pentode tube and sound pretty darn good. The label on the glass reads western electric 717a vt269 by raytheon. Typical tubes are sealed glass bulbs evacuated of gas, allowing electron flow to be influenced by an interior cathode, plate and grid. If we include the soupedup versionswhich, in fact, deviate from the original 1930s western electric we specificationsthe number of 300bs to choose from now includes about 15 different brands and types. Western electric 101d data sheet 1933101d, we101d, we101d, we101d, we101d 101f data sheet 1933101f, we101f, we101f, we101f, we101f 102d data sheet 1936102d, we102d, we102d, we102d, we102d 102f data sheet 1936102f, we102f, we102f, we102f, we102f 102g data sheet 1936102g, we102g, we102g, we102g, we102g 205d data sheet 1933205d, we205d. One of the things that i found in my clean out was a western electric 212e vacuum tube. It was designed primarily for the output amplifier of. The western electric 448a, this is one of the rarest tubes. The western electric 216a was first made in 1922 and used in the we7a amplifier. The 10j12c pentode is equivalent of western electric 310a we310a was designed for highfrequency voltage amplification in longdistance wire service.
Spheres western electric northern electric vacuum tube page. I have some western electric tubes to test on my hickok 533dm thats the 533 with the huge meter so that customers could see the results when their tubes were tested. Western electric transmitting tube, type 270a, used at. The 705a is an eht power rectifier with a piv rating of 35,000 volts. Classificationvoltageamplifier, suppressorgrid pentode with indirectly heated cathode. These are the ultra sought after originals, now over 50 years years old. Note that the original 203a and 211 tubes were called fifty watters. Vacuum tubes appear in older radios, televisions, amplifiers, computers, and other electronic devices.
Western electric 212e vacuum tube engineering radio. Unable to test except for filament continuity, good. I am thinking this is pretty old, it probably came from. This tube seems to be far more linear than the type is generally credited for. The complete western electric vacuum tube library books. These tubes are western electric types from the period 19 to 1938. This tube was not as spectacular as the preceding two, but bettered them in letting the music swing. It seems like the prewwii tubes dont have dates and feature the engraved base. The 310b and 348a tubes differ in heater ratings, type of base and type of grid cap. Western electric 310a vacuum tube original vintage audio. Ok, we lowered the price to be the same as those guys offering dvds with 40 or 50 datasheets. The 10j12c pentode is equivalent of western electric 310a we310a was designed for highfrequency voltage amplification in longdistance wire service systems.
As i began to learn about vintage western electric tubes, i took note of the date codes. Western electric tube data hardtofind data for 44 western electric tube types 205d, 300b, 350b, etc. Many of these tubes were superb sounding audio tubes that are still in very high demand today. This military spec western electride 717a tube is a pentode that can also be wired as a triode like in the yamamoto a08 tube amplifiers. There is no bigger name in the history of vacuum tubes than western electric. Western electric 310b and 348a vacuum tubes 4 3108 m classificationvoitage amplifier, suppressorgrid pentodes with indirectiy heated cathodes. Tube data and patents are in adobe acrobat pdf format. The connection for the suppressor grid has been brought out. Unlike most western electric tubes, the 216a was available for sale to the general public and is now one of the easier of the early w. The 437a electron tube is a high figure of merit triode with an indirectly heated cathode. Tube world stocks one of the most extensive inventories of we tubes on the planet.
The 10j12c pentodes are enclosed in glass bulb and are provided with an octal base and an indirectly heated oxidecoated cathode. Here is pics of them including a picture of the socket, which i. Western electric 5 pin rf triode tube, used, reboxed in wrong we box stock from long ago. The paper band with the license notice is still used, and the number is also stamped in the wax fill. The complete western electric vacuum tube library ebay. They were used in a custom high power transmitter built by james o. Advance electron tube data sheet western electric 437a electron tube. This 1960s raytheon 5755 tube is a military spec equivalent to the western electric 420a dual triode. We are proud to offer our new dvd book, the complete western electric vacuum tube library by james cross 2011, isbn.
I thought these western electric 416b tubes were discussed in a topic about surveillance receivers, but i cant find it. Western electric tubes we 310a voltage amplifier pentode western electric 310a small punch. Hardtofind data for 44 western electric tube types 205d, 300b, 350b, etc. True nos nib date matched pair western electric 310a get vacuum tubes. Antique radio forums view topic 203b western electric. They are designed to minimize hum produced by alternating. The tubes can be installed in a multitude of devices. The 301a vacuum tube is designed to supply direct current from an. Performance data including power output, second and third harmonic. Western efectric 3 2 8 a va c u u m t u b e classificationvoitageampiifier, suppressorgrid pentode with indirectly heated cathode the electrical characteristics of the 328a tube are identical with those of the 310a tube except for the heater voltage and current. Weldon of dallas, texas, for xera, a mexican station along the border with texas.
The 301a vacuum tube is designed to supply direst erehtarom an. Western electric d getter 1947 old computers, vacuum tube, computer. Includes pictures of tubes and complete operating characteristics and curves. Allegrosound original reference tubes western electric. These tubes include the 101d, 205de, 211de, 274ab, 300ab, 310a, 348a, 350b, 396a, 417a, 421a and 437a, just to name a few. The position of the small slotpin on the side of the base is different from where it is on the western electric. I have acquired a pair of western electric vf voice frequency preamps, and im interested in using them in my studio.
I would imagine the 203b was a 203a with increased plate dissapation, but dont quote me on that. Carot one ernestolo with westrex speakers best sound image i ever heard. When the long pins came out they had side locking pins so the tube could be used in bayonet or normal modern type sockets. Western electric 247a nos vacuum tube w original box. Western electric engineered, designed, produced or experimented with over 785 different tubes from 19 1988. Unlike certain adrenaline versions of modern 300b variants, this traditional western electric recipe avoids the occasionally metallic quality and somewhat mechanical mien ive heard elsewhere. A beautiful pair of tested, matched genuine 1960s era all original western electric 310a. Western electric vintage vacuum tubes for sale ebay. Study all of the photos below and view test reports. But, in any case, the price has to do with how rare existing. Discussion in audio hardware started by burt, nov, 2014. The yellow print on the glass has the raytheon logo. Seems that i recall reading that somewhere a long time ago. Western electric classic power pentode tube, very difficult to find, new boxed stock from long ago.