Full text of mullard technical handbook book1 part1. Philipsmullard produced the first commercial highpower transistor in europe, the oc16, in about 1956. Diodes and transistors pdf 28p this note covers the following topics. The company launched an ambitious effort to digitize thousands of obsolete data books and technical manuals, making them searchable via their datasheet archive website.
Oc205 pnp silicon transistor in a classic so2 case aluminium cover over standard mullard glass test tubeawaiting datasheet status. Data on many transistors is available on my valve data cdrom. Oc28 datasheet 14 part ecad model manufacturer description type. Sometimes the 2s prefix is not marked on the package the 2sc2073 transistor might be marked c2073. Information source collector info sammler tvt 1979 eca, ktt 196970. Uk vintage radio repair and restoration transistor.
Valve tube and transistor with informationprojects and technical help. Buy online discounted oc series transistors from silicon. Related transistors include the 2n269 electrically equivalent to the 2n404, but using a different case, the 2n404a which is a higher currentvoltage version of the 2n404 and the usaf 2n404 qualified for. Oc29 datasheet, equivalent, cross reference search. There is the olsons store run by nellies dad, but they do not have the coils.
Full text of mullard technical handbook book1 part1 transistors ac127 to bf451 september 1974 see other formats. Emitter voltage bc372 bc373 vceo 100 80 vdc collector. Performance is based on target specifications, simulated results, andor prototype measurements. Oc71, oc81, oc91 and the ocp71 could well be covered by one article probably just called oc71, but the oc28 is quite a different beast, even though germanium and a contemporary. High voltage 75v video amplifier for transistor tvs. Oc26 transistors 3 in stock to buy, photo, pdf datasheet. Texas instruments transistor and diode databook 1st ed 1973 datasheets for diodes from 1n251 on and transistors from 2n117 on acrobat 7 pdf 34. Up to date worlds transistordiodes and ics comparison tables az. Sn76477 2n4401 free transistor equivalent book semiconductor data. Text in other languages may differ dimensions whd incl.
If not, it can usually be obtained from transistor data books. The complementary pnp transistor to the 2sc2073 is the 2sa940. Oc28 to3 germanium pnp low power transistor vintage. Toshiba transistor silicon npn epitaxial type 2sc2878. This device can also be used in power switching circuits such as relay or solenoid drivers, dc. Bu184 datasheet, bu184 pdf, bu184 data sheet, bu184 manual, bu184 pdf, bu184, datenblatt, electronics bu184, alldatasheet, free, datasheet, datasheets, data sheet. Oc35 cv7084 germanium power transistor mullard ebay. Drift transistor definition and meaning collins english. In practice, the af125 can be used to replace af114115116.
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. Free packages are available maximum ratings rating symbol value unit collector. But the reliability and failure modes of vintage transistors is interesting, and is the subject of this article. 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. C2073 datasheet vceo 150v, npn power transistor mospec, 2sc2073 datasheet, c2073 pdf, c2073 pinout, c2073 data, c2073 crcuit, output, c2073 schematic. One of my interests is restoring vintage transistor radios. C absolute maximum rating ta25 c, unless otherwise specified parameter symbol ratings unit collectorbase voltage vcbo 30 v collectoremitter voltage vceo 15 v emitterbase voltage vebo 5 v collector current ic 50 ma collector power. Up to date worlds transistordiodes and ics comparison tables az on.
Electronics engineering books transistor circuits books diodes and transistors pdf 28p this note covers the following topics. Ac122 datasheet germanium small signal transistors. Here is an image showing the pin diagram of the this transistor. Base 1 2002 fairchild semiconductor corporation rev. A site for the novice or established collectorrestorer of vintage radio sets and electronics. Sometimes the 2s prefix is not marked on the package the 2sc505 transistor might be marked c505. Pnp germanium alloy transistor for af power amplifier applications. Bc372, bc373 high voltage darlington transistors npn silicon features pb. The first transistors made by mullard were the oc50 and oc51 pointcontact types from 1952. Up to date worlds transistordiodes and ics comparison. Use the easy search guide below to go through categories like computer systems, electromechanical components, and optoelectronics, and fine tune your search by selecting from various end markets like consumer appliances, lighting. 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.
The gain of the 2sc505r will be in the range from 40 to 80, 2sc505o ranges from 70 to 140. For the pointcontact transistor a small slab of ntype germanium consisting of a single crystal and having a volume resistivity of 5. Oc28 power transistors datasheet pdf provided by datasheet pdf search for oc28. Oc28 germanium npn low power transistors components datasheet pdf data sheet free from datasheet data sheet search for. This diagram shows the lead connections for the mullard transistors most often encountered in british transistor radios made in the 1960s viewed from underneath. The website currently stores information datasheets, and cross references on over 100 million parts from 7500. Any orders placed through this store will not be honored or fulfilled.
However i also have an ic of theirs where only the letters rt are used. 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. The 2n404 was soon adopted an as industry standard and sold in the millions, with multiple companies producing equivalent devices. The 2sc505 transistor might have a current gain anywhere between 40 and 140.
Aoc2802 commondrain dual nchannel enhancement mode field effect transistor general description product summary vss 20v the aoc2802 uses advanced trench technology to provide id at vgs4. This is a pdf format of the well known hardware pinout book, which covers various computer, electrical and electronic item pinouts. After more than 30 years of collecting, i have only ever seen the rt logo appear once on a semiconductor, the oc28 germanium power transistor on the right. The datasheet archive is a large free resource for electronic component datasheets and scanned data books. The prototype version on the left in the image handles 24 watts. Google books contains a history of the world semiconductor industry by p. 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. Oc28 datasheet, oc28 pdf, oc28 data sheet, datasheet, data sheet, pdf, diode transistor co inc, germanium npn low power transistors. Oc28 datasheet, equivalent, cross reference search. Data sheets contain information regarding a product macom technology solutions is considering for development. For the radio constructor we have an archive of vintage circuits schematics to build. Npn 100ma 50v digital transistors bias resistor builtin transistors. Max2680 o high input thirdorder intercept point o data sheet, datasheet, data sheet, pdf, diode transistor co inc, germanium npn low power transistors. May be one of several makes, and may be to5 can or glass bulb depending on available stock.
Philips described its pointcontact transistors in general terms as follows. Some pages missing but still a useful source of info. Transistor museum store 2n404 historic germanium computer. C3209 datasheet pdf npn transistor nec, 2sc3209 datasheet, c3209 pdf, c3209 pinout, c3209 equivalent, c3209 transistor, c3209 schematic, c3209 manual.