I was wondering if anyone knows a site, or has information that might be interesting in this regard. I had used them in 300b monoblock amps from canary audio ca300 which are subsequently also for sale. This document was created from a scan of the original manuscript and converted to text by means of optical character recognition software. The legendary 6ca7 big boy by general electric usa. Western electrica brief history voice communications inc. I have put minimal hours on these but had bought them used. Available both as web pages click the title and as pdf files for easier. The tubes may be mounted in either a vertical or horizontal. We recommend using very efficient loudspeakers of more than 90db and max input lass than 50 watt. The famous triode was developed at bell labs in 1933 in the form of its predecessor, the 300a, which was modified, patented, and then produced at. Jan 01, 2011 in 1926, talking motionpicture development was well under way, but with the lowpower amps available at the time, highoutput reproduction was pretty much out of the question. Allegrosound original reference tubes western electric. As i began to learn about vintage western electric tubes, i took note of the date codes. Given that premise, two bell labs engineers, edward c.
In electronics the 300b is a directlyheated power triode vacuum tube with a four pin base, introduced in 1938 by western electric to amplify telephone signals. Classificationmoderate power, filamentary triodes for class a service. Includes original instructions for connecting to a desk stand phone. Transistor semiconductor history texas instruments rca bell laboratories western electric general transistor fairchild tungsol sylvania mullard philips stc newmarket general electric philco gec motorola shockley faraday willoughby smith william adams richard day charles fritts braun schuster henry round jagadis bose greenleaf pickard alan wilson walter schottky boris davydov nevill mott. When you intent to get the maximum out of a 300b, and operate this tube at the limits of safe operation, it is a better idea to use the 300b xls in such a case. Allegrosound original reference tubes western electric 300b. This means more we 300b tubes and nos stock prices will drop from online resellers all inflated. I no longer have those test samples for a comparison. I bought these tubes from audiogon several years ago with the intention to use on.
Shindos western electric 300b design accepts either the xlr or rca input and is a very limited production piece. In this article, howard stone first leads us through a nostalgic history of the western electric type 300b audio amplifier triode tube. Vintage western electrics are the king of triode sound you will hear enhanced clarity, great tone, agile pitch all the while maintaining legendary smoothness. Western electric pair of nos 300b tubes w date code 5926.
In 1926, talking motionpicture development was well under way, but with the lowpower amps available at the time, highoutput reproduction was pretty much out of the question. These vacuum tubes employ medium, fourpin thrust type bases suitable for use in western electric 143b or similar sockets. Gold wire is used for the grid, and the grid supports are supplied with cooling fins unusual in a 300b. Although the electronic values of both of the tubes are almost identical, they hardly sound the same. The 300b tube has the bayonet pin so located that it may also be mounted in a western electric loom, 115b or similar socket. What struck me about the krs at the time was cleanliness, dynamics and control. Ken shindo takes the classic western electric 300b circuitry and takes it a step further using his own unique, yet highly refined skills.
Moderate power, filamentary triodes for class a service. In the 1980s it started to be used increasingly by audiophiles in home. The we300b is a vacuum tube with a long history of high performance and great sound. 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. Usually retro somtimes vintage sometimes modern but. It seems like the prewwii tubes dont have dates and feature the engraved base.
Audiofrequency amplifier in positions where power outputs of approximately ten watts or less are required at relatively low plate voltages. Western electric announce 300b to reenter production. What i dont recall is the waft, wax and wane factor for lack of better terminology of the western electric. The western electric 300b has a long and distinguished history, which i dont intend to go into here beyond this brief resume. It has been around pretty much since the late 80s when western electric stopped production and richardson decided to fill the gap. The general consensus was that it would basically sound like playing your guitar through a hifi. It was 1979 that we produced a single ended power amplifier with 300b. Western electric tube data hardtofind data for 44 western electric tube types 205d, 300b, 350b, etc. Vintage western electric s are the king of triode sound you will hear enhanced clarity, great tone, agile pitch all the while maintaining legendary smoothness.
The general consensus was that it would basically sound like playing your guitar through a hifi stereo. The 300b tube has less interaction with the speaker system. Made tube tester l33 great for testing western electric 300b px4. It had the krs authority, but was devoid of any obtrusiveness. What follows is a report on the resurrgence of the 300b through. Price new from used from paperback, 1994 please retry. Early in 1995, westrex corporation announced the reintroduction of the western electric 300b, but a series of delays slowed the actual reissue until the spring of 1997. Tube manufacturing 000000000000 at western electric. Here is the shindo western electric 300b limited version mono power amplifier.
It took we some time to get it right 1990s production started 1. Western electric tubes click on links below to check stock 2a 3a 5a 7a photocells 3b24 5d21 5d21 ceramic sockets by ef johnson vt25a we ceramic base vt25a hytron for we sylvania brown base 1940s vt52 we hytron sylvania 1940s 101d we triode 101f we triode 101fa we triode 101l we triode 101m we triode 102d we triode 102f we triode 102g we triode 102l we. The product you are trying to view no longer exists. Western electric produced the 300b power triode specifically for low distortion audio amplification in such situations. The graybar electric company is the national distributor of western electric electronic products. Western electric tube data paperback january 1, 1994 by western electric author see all formats and editions hide other formats and editions. It was not fully tested, but the handle does crank easily and the bell rings. As of july 15, 2019, western electric is no longer accepting new preorders. It was designed in the 30s specifically as a power valve for audio cinema amps specifically. Western electric 1126b instruction bulletin pdf download. Western electric kansas city works was the home of western electric vacuum tube. We 300b western electric 300b vacuum tube classification.
Western electric announce 300b to reenter production, launch. Since then its been used in several configurations, but the one that. 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 367a 373a 374a. The 300b tube has the bayonet pin so located that it may also be mounted in a western electric 100m, 115b or similar socket. The westrex people claim to make the new 300b with the same quality materials and some of the same manufacturing molds and tooling as the old western electric 300b. I once made a thread about making a guitar amp with these tubes. In electronics the 300b is a directlyheated power triode vacuum tube with a fourpin base, introduced in 1938 by western electric to amplify telephone signals. What follows is a report on the resurrgence of the 300b through reissues being produced by several manufacturers. Aes elibrary tube manufacturing at western electric. Thuras, offered what they described as an acoustical device using a light pistontype diaphragm driven by a light rigid coil. Western electric to restart production on 300b tubes. Technical inquiries it is the objective of the western electric company to furnish.
Ua 450 v wa 40 w maximum plate curent of everage tube for. To secure price and delivery information, contact your nearest graybar office. They are in excellent condition and sound beautiful. Charles whitener president, western electric writes it is my distinct pleasure to announce that the we 300b electron tube will reenter production this year, in time for its 80th anniversary. Post comments atom just a place to post some of the hifi information i have collected over the years. This tube is a direct replacement for the western electric e300b as build until. Western electric tube data, 2nd edition antique electronic. Be sure to include your full name, desired 300b set and quantity, and ship to country. This tube combined everything good that can be found, to a smaller or larger extent, in the tubes described above. Western electric a brief history an old western electric hand once said.
Western electric, huntsville alabama usa, 20022008 western electric kansas city works was the home of western electric vacuum tube production from 1962 thru 2002. Western electric 300k telephone ringer crank box 5 bar. As that manufacturing company, now called lucent technologies, casts loose the last of its operating. Very involving, even euphonicalmost as if trying to make things. 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 300a 300b data sheet highres, 4. The 300b is a filamentary type triode designed for use as an audiofrequency power. View and download western electric 1126b instruction bulletin online. The tubes may be mounted in either a vertical or horizontal position. Advanced cicuit and selected parts result in a natural presence and dynamic sound reproduction. 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. Very good bassreal pressure therebut with a trace of hollow coloration in the midbass when used in the audionote.
Western electric and the bell system a survey of service edited by albert b. For release in north america, europe, africa, middle east. If mounted in a horizontal position, the plane of the filament, which is indicated in figure 2, should be vertical. Iardella published by western electric company, 195 broadway, new york, n. Hickok made for western electric ks15750l1 restored and. What links here related changes upload file special pages permanent link page information. Though 40 watt is possible, this is a peak value only, and no normal working point. Matched pair with double getters nos tube museum quality strong legendary american power tubes popular in fender musicman amps these topmica shields and solid fatboy disk getter rings are designed to deflect unwanted electron bombardment to prevent cathodepoisioning. Antique western electric 300k telephone crank box with 48a 5 bar magneto ringer the oak wood box is in good solid condition with very minor cosmetic wear as shown in photos. That swapping out a wellregarded tj 300b for a western electric as driver should make such wholesale improvements improvements which experienced audiophiles had all along suspected would have to be a function of crossover and slope. It is honest and accurate and sweet and will drive a surprising number of commercial speakers to acceptable levels.
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