What i dont recall is the waft, wax and wane factor for lack of better terminology of the western electric. Even the legendary western electric b has been put back into production. Buyers and users should ask yourself if the sound is more important or the parts brand is more important in the end. The westrex people claim to make the new 300b with the same quality materials and some ot the same manufactur ing molds and tooling as the old western electric 300b. Ua 450 v wa 40 w maximum plate curent of everage tube for fixed bias ia 70 ma maximum plate curent for manually adjusted grid bias or selfbiasing ia 100 ma. A listing of the main graybar offices throughout the country is presented on page 16 of this bulletin. Technical inquiries it is the objective of the western electric company to furnish. Western electric nos tubes aid in this process, providing interchangeable power nodes that can act as replacements for previously exhausted hardware.
The most famous vintage singleended amplifier is western electrics we 91a, which was used for theatre and public pa application. Along the way, the company made tremendous breakthroughs. In 1899, it invested in a 54% share of the nippon electric company, ltd. In this article, howard stone first leads us through a nostalgic history of the western electric type 300b audio amplifier triode tube. Electro harmonix 300b pdf electro harmonix b power vacuum tube the b power vacuum tube is a directly heated power triode for use in hifi amplifiers. To secure price and delivery information, contact your nearest graybar office.
The 300b tube has the bayonet pin so located that it may also be mounted in a western electric 100m, 115b or similar socket. Stamou has built this amplifier with lundahl ll1623 audio output transformers. Western electric vacuum tubes valves bottleof magic a brief history. On the positive side, this valve seems more resolving harmmonix detailed than the standard type. And finally drum roll please the tube of all tubes the desire of every audiophile the stuff the dreams are made of. The 300b ehs plate curves and static dc characteristics plate resistance, transconductance, mu also exactly match the originals so you can drop them into any vintage or modern 300b amp and. It was designed in the 30s specifically as a power valve for audio cinema amps specifically. They began in 1935 using a single 300b early models were using 300a with two 6c6 pentodes and an input transformer to accept balanced input. This tube combined everything good that can be found, to a smaller or larger extent, in the tubes described above. The result is the fatboy 300b amp named as such because, like me, it is a tad overweight. Discussion in audio hardware started by burt, nov, 2014. The company subsequently invented the loudspeaker, successfully brought sound to motion pictures, and introduced systems of mobile communications which culminated in the cellular telephone. Chokeloaded triode direct coupled to dht driver, transformer coupled to the pushpull 300b output tubes.
Brand new western electric we 91e 300b valve amp hifi pig. Hold an 845 or 211 in one hand and a 300b in the other. I have put minimal hours on these but had bought them. I intended to use it to build a western electric 91a style amplifier. Noone can tell me or any other sentient being that the 300b costs more to manufacture than the big broadcast triodes yet premium new production 300bs are consistently costlier, and in a few instances, hugely so. In my wavac im using the reissue we 300b but ive used the chinese versions as well with no problem. What follows is a report on the resurrgence of the 300b through.
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. From my experience the svetlanas sound a lot like the western electric 300b reissues. New listing stunning tannoy 15 monitor black speaker 1947 rare grf western electric 300b. Tube manufacturing 000000000000 at western electric. 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. Western electric 300b dimensions metric and base per manufacturers 1939 datasheet. The 300b supplied with the amplifier is made by sovtek in russia, however both the western electric 300b and kr 300b can be supplied to special order. In the meantime, the new shuguang we300b tube is a new option were excited about and worth considering. Western electric 348a for 91a 300b tube amplifier 310a. Western electric tube data paperback january 1, 1994 by western electric author see all formats and editions hide other formats and editions.
Unfollow western electric 300b tube to stop getting updates on your ebay feed. Western electric 300b round getter tube mazetube maze. Considered by many the best in sound, a good 300b amplifier with the western electric 300b tubes. 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. I used tango nc14 interstage and fx405 output transformers, which ive had around for a while. 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. One often wonders, if there is a 300b, is there a 300a and what is the difference. I had used them in 300b monoblock amps from canary audio ca300 which are subsequently also for sale. Bernard magers 75 years of western electric tube mfg.
What struck me about the krs at the time was cleanliness, dynamics and control. Western electric was the first company to join in a japanese joint venture with foreign capital. It has been around pretty much since the late 80s when western electric stopped production and richardson decided to fill the gap. The 300b tube has the bayonet pin so located that it may also be mounted in a western electric loom, 115b or similar socket. In 19, western electric developed the high vacuum tube, thereby ushering in the electronic age. The cetron brand 300b wasis made by richardson electronics and is a true veteran in this lineup. As of july 15, 2019, western electric is no longer accepting new preorders. Sophia electric 9101 and 915 300b audiogon discussion. The 91e embodies a new proprietary class a2 parallel feed current source topology patent pending, combined with toroidal. Please note, the only tube out there that actually sounds like a real western electric 300b etched or yellow base valve is the reissue we.
I no longer have those test samples for a comparison. The life expectancy when operated within published specifications is 40,000 hours. There is no doubt the western electric 300b offers amazing sound quality, but other brands of tube are very close behind, each offering a subtly different presentation. It has a straight, tight, original pin with no marks from use. Free western electric diagrams, schematics, service. They insist that the only tube for this application is the western electric version of this tube.
See more ideas about valve amplifier, vacuum tube and diy amplifier. They are in excellent condition and sound beautiful. Western electric announce 300b to reenter production. Personally, any of those full music type 300bs work just fine and im a spoiled nos tube guy. Since then its been used in several configurations, but the one that. Current new production 300b tubes like the electroharmonix 300b and the jj 300b sound wonderful at a fraction of the western electric 300b price. I have put minimal hours on these but had bought them used. The western electric 300b has a long and distinguished history, which i dont intend to go into here beyond this brief resume. New production 300b tubes steve hoffman music forums. The tubes can be installed in a multitude of devices. In the 1980s it started to be used increasingly by audiophiles in home. Electroharmonix 300b eh vacuum tube duet platinum matched. The tubes may be mounted in either a vertical or horizontal position. Personally, any of those full music type 300b s work just fine and im a spoiled nos tube guy.