Ac125 transistor equivalent books

Check our section of free e books and guides on transistor circuits now. Jan 19, 2015 discover book depositorys huge selection of transistors books online. Mullard data book, 19734, mister transistor and other websites see references. Download ic database equivalent guide 100 thousand. A to5 transistor with a p d of 3 watts might be able to dissipate 810 watts with a heat sink. 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. Wherever you need to control the flow of electricity in a device from transistor radios, to diodes, to circuit boards you can find a great collection of transistors on ebay. We would wire the input to the volumn control and the speaker wires on the output. Offering a matched set of three ac125 germanium pnp transistors for tone bender mkiimarshall supa fuzz.

One of my interests is restoring vintage transistor radios. The importance of transistor cross reference, datasheet, equivalent and specification. Bipolar, power, rf, digital, igbt, unijunction, fet, jfet, and mosfets. Ao4609 complementary enhancement mode field effect transistor the ao4609 uses advanced trench technology mosfets to provide excellent rdson and low gate charge. Cross reference universal transistor reference read 14021 times. Ac125 germanium pnp transistors matched set for a tonebender. Transistors germanium gt109g analogue 2n207, 2n266, 2n404, ac125 ussr 6 pcs. Is there any equivalent transistor i can use in place of this one, something that is easiercheaper to get a hold of. Ac125 datasheet, ac125 pdf, ac125 data sheet, ac125 manual, ac125 pdf, ac125, datenblatt, electronics ac125, alldatasheet, free, datasheet, datasheets, data sheet. Ac125 matched tungsram pnp ge germanium pair transistors. Tube ac 128 or rohre ac128 id33948, transistor, wires and poweroutput shown. When analyzing a transistor circuit, different responses are produced by the transistor circuit depending on the frequency of the ac signals being input into the circuit. The links at left may help you to research your own replacement transistors.

Transistor pnp germanium 32v 1a to1 medium driver order for or more ship same day or within 48hrs. But all this is some ones idea of what a equivalent is. Mar 21, 2004 years ago there were books for transistor equivalents. Switch at its most basic, a transistor is a switch. Diodes and transistors pdf 28p this note covers the following topics. Buy international transistor equivalents guide bernard babani publishing radio and electronics books by adrian michaels isbn. Long time ago we would take a cheap transistor radio apart and put two phone jacks in it. Is there any webbased or stand alone program to do such service for transistors and ics. Cross reference universal transistor reference page 1. The data sheet is very important for every engineers and technicians because it can help them to find the nearest. Considering now the proelectron numbering, here is a tungsram ac125 in the. Once upon a time, long ago, british and european transistors were commonly coded. All electronic repairers should know how to read the transistor cross reference equivalent book if they want to succeed in electronic repairs. Texas instruments transistor and diode databook 1st ed 1973 datasheets for diodes from 1n251 on and transistors from 2n117 on acrobat 7 pdf 34.

Rca transistor manual t h is book has been prepared to assist those. Apps ac125 datasheet, equivalent, cross reference search. Crank it wide open and distort like crazy call it a fuzz box. 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. Discover book depositorys huge selection of transistors books online.

Ac122 datasheet germanium small signal transistors. First book of transistor equivalents american radio history. The local band would buy and put it in front of the guitar amp. The complementary mosfets may be used to form a level shifted high side switch, and for a host of other applications. This book also has a very comprehensive glossary, index, and equations. International transistor equivalents guide american radio history. Im looking at buying transistors and noticed its extremely difficult to find ac 128 transistors, as noted on the fuzz factory schematic. Understanding transistor cross reference, equivalent. A great book for learning electronics in easy plain language. Ac127 datasheet, equivalent, cross reference search. This easytouse book covers all transistor types including.

Ac128 datasheet, equivalent, cross reference search. Cross reference electronic circuits, tv schematics, audio. Ac125 transistors 90 in stock to buy, photo, pdf datasheet. Design and application of transistor switching circuits. Most have a way to say i need a transistor like this. This section contains free ebooks and guides on transistor circuits, some of the resources in this section can be viewed online and some of them can be downloaded. It allows the flow of electrons only under certain conditions. This page contains list of freely available e books, online textbooks and tutorials in transistor circuits. Free transistor circuits books download ebooks online. In practice, the af125 can be used to replace af114115116.

Transistor equivalents for the substitution of modern transistors in elderly projects. Ac125 datasheet germanium small signal transistors. C1815 cross reference electronic circuits, tv schematics. Transistors germanium gt109g analogue 2n207, 2n266, 2n404.

You can put a diode in series with the collector of one nfet or npn transistor that conducts when the hot line of the mains is positive relative to neutral, so when the cpu turns on that transistor, the transistor turns on the light bulb during the positive halfcycles. Cross reference universal transistor reference page 1 eevblog electronics community forum. Accelerometer demo running on 8bit s08 ac128 in data averaging mode. I during 80s and 90s, i used to search for components equivalents in books. In this case, before fitting a replacement transistor, check the associated bias components, coupling. High voltage 75v video amplifier for transistor tvs. Ac125 datasheet, equivalent, cross reference search. Free transistor circuits books download ebooks online textbooks. Yes, there are several ways to build an ac switch entirely out of transistors. Should you find any info that can fill in any of the blanks in the matrix below. This looks like the ubiquitous to18 package as used by the bc108 and similar but with a forth lead for the screen. Selected ac125 pnp germanium transistor, hfe8090 leakage smaller than 300ua.

Apr 05, 2008 i during 80s and 90s, i used to search for components equivalents in books. The transistors are from a sealed bag from the 1970s and are gain matched and checked for proper leakage with a peak atlas dc55 transistor tester, and checked in circuit in one of my test pedals. International transistor equivalents guide bernard babani. But the reliability and failure modes of vintage transistors is interesting, and is the subject of this article. Semiconductor transistor, diode, ic cross reference. Many times the equivalents shown in the various books are harder to find than the original component. Hi all, i realise this is a long shot but im trying to repair a circuit board that switches 12v soleniods, it does a lot more besides but i had a short on one soleniod which in turn burnt out what i assume to be a 0. The best equivalent transistors are the af12x series that are the same piece of germanium, but mounted in a to72 case. Heat sinks and fans increase the ability of a transistor to dissipate heat. 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. Maximum power, called p d, is the overall power a transistor can dissipate, through heat, without burning up.

Free transistor equivalent book transistor bipolar junction. Everyday low prices and free delivery on eligible orders. Semiconductortransistor crossreference list peavey. In certain cases, the quoted collector current may be exceeded. Transistor equivalents for the substitution of modern. I have no original tungsram data books or sheets describing any of these. Aug 08, 2011 im working on a guitar pedal that calls for a ac128 germanium pnp transistor and i was wondering why i might not want to just get a modern equivalent. Tungsram made other transistors equivalent to oc types, presumably starting later.

The transistor handbook, one in a series of component handbooks, has the answers to all of your daily application questions. Although the software seems a bit ugly design running on dos, but it works perfectly with the database with many components and is free, makes an interesting tool to interested in electronics, want to know when information about a particular component or find a replacement. Tube ac 125 or rohre ac125 id33949, transistor, wires and audio frequency shown. Ic cross reference cross reference ci stk cross reference ci tda cross reference ci sharp cross reference hitachi audio ic cross reference and circuit applications smd cross reference and equivalent we make every effort to ensure that the material on this site is accurate, however we do not warrant or represent that the information is free. Another point to watch is that equivalent books list the af239s as a. Transistor equivalent circuits and models learning objectives general dc equivalent circuit ac equivalent circuit equivalent circuit of a cb amplifier effect of source resistance r s on voltage gain equivalent circuit of a ce amplifier equivalent circuit of a cc amplifier smallsignal lowfrequency model or representation.