Oc140 transistor datasheet books

Bc140 datasheet, equivalent, cross reference search. They are particularly designed for audio amplifiers and switching applications 1 a. Emitter voltage bc372 bc373 vceo 100 80 vdc collector. Oc45 datasheet, equivalent, cross reference search. The pointcontact transistors have 2 mil point spacing and are close copies of the btl type a.

Any orders placed through this store will not be honored or fulfilled. Jun 15, 2015 oc9 aluminium cover, oc140 all glass professionals models, the first npn developed for computers. For the radio constructor we have an archive of vintage circuits schematics to build. The 2n3904 is a common npn bipolar junction transistor used for generalpurpose lowpower. This book also has a very comprehensive glossary, index, and equations. Cmos ssi quad exclusive or and nor gates, mc14070b datasheet, mc14070b circuit, mc14070b data sheet. Electronics handbookcomponentstransistors wikibooks. Complementary low voltage transistor stmicroelectronics.

Dont go for a transistor with a much higher ft as this may increase the risk of oscillation. Pinning pin description 1 emitter 2 base 3 collector, connected to case fig. Npn medium power transistor in a to39 metal package. Bc140, 141 npn medium power transistors page 2 310505 v1. If you need one, i would recommend that you buy one of the previous editions from 2000 or earlier i ended up buying a copy of the eighth edition from 1998, and the. In this icdatabook software you will find pin assignments, connection layouts, function tables and the most important specifications available for the 40x and the 74x ic series. Complementary low voltage transistor features products are preselected in dc current gain application general purpose description these epitaxial planar transistors are mounted in the sot32 plastic package. Nos british military cv7112 oc140 npn germanium transistor. It has been very useful for me because it doesnt provide only the nte replacements. High voltage 75v video amplifier for transistor tvs. Rca transistor thyristor and diode manual sc14 and a great selection of related books, art and collectibles available now at. You can easily add additional ics or edit existing ics and exchange them with.

The pedal is based on the much soughtafter vintage sixties twotransistor. Oc9 aluminium cover, oc140 all glass professionals models, the first npn developed for computers. One of my interests is restoring vintage transistor radios. Carefully matched vintage new old stock oc140 germanium transistors. Pdf oc169 350iu oc171 oc171 oc44 oc169 oc45 transistor oc44 2s60a the transistor manual 2sa ge transistor manual. Germanium transistors the following table lists the parameters for germanium transistors.

Uk vintage radio repair and restoration transistor. Bc141 npn medium power transistors product specification 1997 may 12 supersedes data of september 1994 file under discrete semiconductors, sc04 philips semiconductors product specification npn medium power transistors bc140. The case drawings are shown at the bottom of the page. Of course, after 40 plus years of life, most electrolytic capacitors are suspect and the carboncomposition resistors have drifted high and sometimes become very noisy. Bc372, bc373 high voltage darlington transistors npn silicon features pb. Mullards first silicon transistors were the oc201 to oc207, pnp alloy types using the standard so2 metaloverglass construction such as the oc201 shown. Allieds handbook of transistor fundamentals author.

Philipsmullard produced the first commercial highpower transistor in europe, the oc16, in about 1956. A complete guide to semiconductor replacement and substitutions from the makers of photofactr service documentation. There is no listed equivalent to the af118 and where replacement is needed for an old transistor tv, it may be necessary to rejig the circuit to take a suitably rated silicon device. Smallsignal transistor data book, 86 pages, 1984, motorola. C2073 datasheet vceo 150v, npn power transistor mospec, 2sc2073 datasheet, c2073 pdf, c2073 pinout, c2073 data, c2073 crcuit, output, c2073 schematic. The current software version includes the data of more than 230 different ics. Ac122 datasheet germanium small signal transistors.

Oc140 transistors 40 in stock to buy, photo, pdf datasheet. Up for grabs are nos black glass cv7112s germanium transistros which are an npn transistor and the military version of the oc140. The complementary pnp types are the bc160 and bc161 symbol. We have the broadest line of bipolar power transistors in the industry and the motorola commitment to quality and total customer satisfaction to go with them. Npn junction germanium transistor intended as switch and or. They are designed for audio amplifiers and drivers utilizing complementary or quasicomplementary circuits. Basic semiconductor physics, diodes, the nonlinear diode model, load line analysis, large signal diode models, offset diode model, transistors, large signal bjt model, load line analysis, small signal model and transistor amplification. Texas instruments transistor and diode databook 1st ed 1973 datasheets for diodes from 1n251 on and transistors from 2n117 on acrobat 7 pdf 34.

These can occasionally be found on ebay, usually advertised as germanium devices. Bc140 general purpose transistors description the bc140 and bc141 are silicon planar epitaxial npn transistors in to39 metal case. It is necessary to ensure that the replacement transistor will be able to operate at the relevant frequencies, so a similar or slightly higher ft is advisable. We do guarantee reasonable noise floor and bias to the geo spec. The commercial version to its right used a different stud packaging in which two leads emerged through a hole in the centre of the fixing screw. Oc205 pnp silicon transistor in a classic so2 case aluminium cover over standard mullard glass test tubeawaiting datasheet status. Transistor uses, transistor rules, common emitter circuit, small signal amplification, fieldeffect transistors, jfet operating regions. Jul 05, 2017 c2073 datasheet vceo 150v, npn power transistor mospec, 2sc2073 datasheet, c2073 pdf, c2073 pinout, c2073 data, c2073 crcuit, output, c2073 schematic. The 2n3904 is a common npn bipolar junction transistor used for general purpose lowpower. Others, diode, transistor, thyristor datasheets and more, scan, pdf.

With the right biased voltage at the base, the transistor can be operated like a mechanical switch. Transistor the rangemaster npn oc140 small bear electronics. A site for the novice or established collectorrestorer of vintage radio sets and electronics. They are a good solution in putting germanium transistors into a standard negative grounded circuit without transforming it.

More than 490,000 part numbers, type numbers, and other identifying numbers listed. Johnson a great book for learning electronics in easy plain language. One of the larger surfaces of this germanium slab is soldered on to a metal carrier and thus forms the base. C200transistor nte equivalent nte123a npn audio transistor. In fact valves are nowhere near as unreliable as people think repairers would often claim a valve had failed and charge for it to cover the cost of the time spent finding and replacing a couple of faulty capacitors. C2073 datasheet vceo 150v, npn power transistor mospec. Buy online discounted oc series transistors from silicon. Edward herold, director of the radio tube laboratory at the rca princeton laboratories, visited natlab and the electron tubes division laboratory in 1953 and noted in his report. Max2680 o high input thirdorder intercept point o datasheet, bu184 pdf, bu184 data sheet, bu184 manual, bu184 pdf, bu184, datenblatt, electronics bu184, alldatasheet, free, datasheet, datasheets, data sheet. This easytouse book covers all transistor types including. Mullard highquali audio circuits, this book has already.

Mullard soon switched to using the bc prefix for silicon, and ac for germanium, eliminating the confusion. It goes further and it offers exactly what you were talking in this topic, real replacements like the 80s and 90s replacements crossreference books. Tube oc 140 or rohre oc140 id33731, transistor, wires and universal shown. Onsemi, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. However the af239s is a uhf device designed for use in tv uhf tuners and has a low gain min hfe 10 compared with the af11x types min hfe 50 and my experience is that it wont work properly if at all in most radio circuits. But the reliability and failure modes of vintage transistors is interesting, and is the subject of this article. Small signal transistor data book, 86 pages, 1984, motorola. The column marked case is the outline of the transistor case. Valve tube and transistor with informationprojects and technical help. Npn means you can make your pedal negative ground so you do not need to use a special adaptor for you pedal. Diodes and transistors pdf 28p this note covers the following topics. Select a replacement transistor with equivalent ft. In practice, the af125 can be used to replace af114115116. Principles of transistor circuits is a very good book, but this 2003 print of the ninth edition suffers badly from being digitised as the illustrations are almost illegible.

Philips described its pointcontact transistors in general terms as follows. Uk vintage radio repair and restoration transistor faults. C2785 datasheet, c2785 pdf, c2785 data sheet, datasheet, data sheet, pdf. The prototype version on the left in the image handles 24 watts. Apr 05, 2008 it has been very useful for me because it doesnt provide only the nte replacements. Choosing transistor replacements electronics notes. Making a transistor radio parts list of course, if you had a time machine, you could visit the peter vis hardware mercantile store, and i will pack all of these items for you in a nice brown paper bag. Free packages are available maximum ratings rating symbol value unit collector.

The transistor handbook, one in a series of component handbooks, has the answers to all of your daily application questions. May be one of several makes, and may be to5 can or glass bulb depending on available stock. Buy online discounted oc series transistors from siliconark. From wikibooks, open books for an open world transistor and diode databook 1st ed 1973 datasheets for diodes from 1n251 on and transistors from 2n117 on acrobat 7 pdf 34. Reference books on integrated circuits, microcontrollers and transistors. Another point to watch is that equivalent books list the af239s as a replacement for the af11x range. Max2680 o high input thirdorder intercept point o books on integrated circuits, microcontrollers and transistors.