Western electric 275a tube data book

The connection for the suppressor grid has been brought out. The following listing of tubes are those special tubes and encompass tubes used in special communications equipment, broadcasting, amateur radio and the audio industry. As i began to learn about vintage western electric tubes, i took note of the date codes. Hardtofind data for 44 western electric tube types 205d, 300b, 350b, etc. Vt1 was the us signal corps designation for the tube wich was known as typej. The western electric 336a tube was used in speech input equipment and the 106 type amplifier. These are very rare, and we were lucky enough to get 4 pcs in stock nos in original boxes. The yellow print on the glass has the raytheon logo. Western electric transmitting tube, type 270a, used at. Stock changes daily and prices continue to increase due to the scarcity of most we tubes.

We are proud to offer our new dvd book, the complete western electric vacuum tube library by james cross 2011, isbn. Western electric tube data original 1933 book 242a. Up for bids a hickok ks15874l2 built for western electric. Only the western electric tube cards and the calibration cards are included.

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 tube for sale tractor parts and replacement. Psvane we205d205dl replica vacuum tubes pair psvane. The tube tester is very clean and under the chassis looks fine. Take a look at your 205d tube socket if it is the same as the original western electric 205d socket for 4 smaller shorter pins, you need to order the we205d replica. Tube world stocks one of the most extensive inventories of we tubes on the planet.

Applieationaudiofrequency amplifier where power outputs of about 3 watts per tube are required. The 10j12c pentode is equivalent of western electric 310a we310a was designed for highfrequency voltage amplification in longdistance wire service systems. We are proud to offer our dvd book, the complete western electric vacuum tube library by james cross. The complete western electric vacuum tube library ebay. These tubes are western electric types from the period 19 to 1938. The 10j12c pentodes are enclosed in glass bulb and are provided with an octal base and an indirectly heated oxidecoated cathode. Here is the holy grail western electric vacuum tube book, 1933. Allegrosound original reference tubes western electric. Herein you will find a collection of vintage engineering texts, vacuum tube datasheets, and other obsolete information, presented free of charge and without annoying advertisements. We test your order before shipment for world class performance and the best tone possible. It seems like the prewwii tubes dont have dates and feature the engraved base. Western electric electron tubes general bulletin foreword his bulletin presents in concise tabular form the essential data on western electric electron tubes, which are designed by bell telephone laboratories. Vacuum tubes appear in older radios, televisions, amplifiers, computers, and other electronic devices. It was designed primarily for the output amplifier of the l3 tandem two stage amplifier.

A collection of electron tube specifications from the western electric library. Hi tom i can give you whats written in 75 years of western electric tubes. This 1960s raytheon 5755 tube is a military spec equivalent to the western electric 420a dual triode. In the history of tubeproducing industry, el34 was designed very well and given infinite dynamism and strength on its pressureresistant performance. A western electric 275a push pull this predecessor of all the famous 300a and 300b amplifiers is unfortunately a long forgotten w. Western electric tubes nos vacuum tubes for sale tubes. Western electric tube data paperback january 1, 1994 by western electric author see all formats and editions hide other formats and editions. The on button must be pressed many times for it to engage. Just like we always think of western electrics we300b when refer to 300b, as to the top representative products of el34, it undoubtedly is the iron pedestal el34 of philips produced in 50s.

The familiar western electric 216a first appeared in 1922 as a component of the w. The western elecric code numbers assigned to this type were in the 203 series, the first being 203a. Includes pictures of tubes and complete operating characteristics and curves. This, together with its low power consumption makes it particularly adaptable in portable equipment where compactness is essential. The 437a electron tube is a high figure of merit triode with an indirectly heated cathode. This is a comprehensive reference for collectors and users alike.

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. Over 350 us patents pertaining to tubes assigned to western electric. The complete western electric vacuum tube library books. 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. Weve divided our western electric tubes pages into four categories for easier. A few things you must pay attention to before you swap your current 205d tubes to the psvane we205d205d l replica tubes. This tube seems to be far more linear than the type is generally credited for.

Typical tubes are sealed glass bulbs evacuated of gas, allowing electron flow to be influenced by an interior cathode, plate and grid. Western electric 350b tubes in mcintosh mc 30 tube amp holy grail 6l6 duration. Antique radio forums view topic western 216a tube test. 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. I was wondering if anyone knows a site, or has information that might be interesting in this regard. Western electric 2 7 5 a va c u u m t u b e classiflcationmoderatepower, filamentary triode the 275a tube is designed for a maximum plate voltage of 300 volts. Antique radio forums view topic 203b western electric.

The initial design was taken from the 101d, with the only difference being in the filament voltage. It has a stamped grid with 15 laterals and was designed as a receiver tube for communication between aircraft scr68 and ships cw936. Tube tests as new and with balanced and very low noise. This same tube was used by the us navy under the designation cw933.

Western electric 310a small punch nos vacuum tubes. We have gathered together technical data, tube inserts, patents, photos, and tabular data from a variety of original source documents in one convenient package. The western electric engineers had to develop a stable and rugged construction. Western electric 275a nos nib from 1973 beautiful 3watt. This development process led to the 215a peanut tube introduced in 1919. Western electric 142a 142 tube amplifier restoration bg078 duration.

Its used as a general purpose triode for detector, amplifier or lowpower oscillator. Western eectric 3 1 0 a va c u u m t u b e classificationvoltageamplifier, suppressorgrid pentode with indirectly heated cathode this tube is intended primarily for use as an audio, or carrier and radiofrequency voltage ampli. Ok, we lowered the price to be the same as those guys offering dvds with 40 or 50 datasheets. Ee the peanuttube was also produced in canada by northern electric. The 94 531 was made for portable projector systems. It is known that western electric was trying to develop tubes with a much lower filament power requirement than was common at the time. We electron tubes general bulletin index and general information. Advance electron tube data sheet western electric 437a electron tube. Special selected cryogenically treated 396a and 417a western electric are in stock. Western electric tube data hardtofind data for 44 western electric tube types 205d, 300b, 350b, etc.

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