Bf194 transistor equivalent books

Home actives transistor transistor silicon npn bf194. Bf495 npn medium frequency transistors 1997 jul 08 product specification supersedes data of september 1994 file under discrete semiconductors, sc04 philips semiconductors product specification npn medium frequency transistors bf494. Wikipedia books are maintained by the wikipedia community, particularly wikiproject wikipedia books. Free transistor circuits books download ebooks online. Simplest fm transmittermodulation circuit with bf494 radio. Bf494 npn medium frequency transistor to control the impact of the covid19 outbreak, indian gov. Npn medium frequency transistor bf199 limiting values in accordance with the absolute maximum rating system iec 604.

Applications hf applications in radio and television receivers fm tuners. Information furnished is believed to be accurate and reliable. Bf194 datasheet, bf194 pdf, bf194 data sheet, bf194 manual, bf194 pdf, bf194, datenblatt, electronics bf194, alldatasheet, free, datasheet, datasheets, data sheet. The original transistor might need special ordering, or be discontinued and unavailable. Pnp medium frequency transistor bf450 limiting values in accordance with the absolute maximum rating system iec 604. 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. Only after i tune the capacitors do i get 9 db out at 175 mhz.

Smallsignal transistor data book, 86 pages, 1984, motorola. Without knowing its usage, you have to make sure the replacement transistor meets or exceeds every spec, since you dont know which ones the circuit relies on. One of my interests is restoring vintage transistor radios. Transistor equivalent or substitute used for power amplifier. Bf195 equivalent datasheet, cross reference, circuit and application notes in pdf. Book this book does not require a rating on the quality scale. So called equivalent parts, or nte replacements, may not work at all in some cases, because they were worse in some spec, or the circuit was designed with the assumptions that the part had a fairly low bandwidth. Semiconductor transistor, diode, ic cross reference. Tube bf 194 or rohre bf194 id34990, transistor, wires and vhf shown. Sn76477 2n4401 free transistor equivalent book semiconductor. If more than a maximum voltage rating is applied to a transistor, it can be permanently damaged. Knowing how to substitute an alternate transistor type can speed up your. Methinks you need to study electronics more deeply.

Everyday low prices and free delivery on eligible orders. Transistor circuits books this section contains free e books and guides on transistor circuits, some of the resources in this section can be viewed online and some of them can be downloaded. Bf422 high voltage transistors npn silicon features this is a pb. Articles transistors in vintage radios marks pages home. Crossreferences are not magic, understanding of the circuit and a parametric search of the important parameters is much more reliable. 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. A high frequency transistor, specifically designed for low noise front end rf applications. Understanding transistor replacement, substitution and information is very important for a electronic repairer. Buy international transistor equivalents guide bernard babani publishing radio and electronics books by michaels, adrian isbn. The bc548 is a generalpurpose npn bipolar junction transistor commonly used in european. Ecg transistor replacement guide book free 2sb337 transistor.

Ive quoted figures from a mullard data book published in 1979. Factory drop ship smaller orders ship within 5 days this part has been replaced with new part click here. Applications output stage of a vision if amplifier. Design and application of transistor switching circuits. Vrt comparison table for semiconductors from a to z. Transistor base numbers bfxxxx cricklewood electronics. Characteristics tamb 25 c unless otherwise specified.

Bf194 datasheet, bf194 pdf, bf194 data sheet, datasheet, data sheet, pdf. Suitable for applications requiring low noise and good hfe linearity, eg. Bf199 npn medium frequency transistor dbook, halfpage m3d186. I keep looking for equivalent transistors, and sometimes find a website that gives a list equivalent transistor. Discrete semiconductors data sheet book, halfpage m3d186 bf494. Bf450 pnp medium frequency transistor book, halfpage m3d186. It has been very useful for me because it doesnt provide only the nte replacements. Bf254 rf transistor equivalent nte108 kp components inc. The transistor im testing was made by motorola and is a know good working device in the current application circuit, in which i desoldered the transistor from.

Great performance or range is not guaranteed here, because this is an elementary design. Bc516 equivalent bf195 equivalent bf195 bf194 bf197 2n4996 transistor bf194 2n918 plastic bf595 text. Aug 25, 2011 crossreferences are not magic, understanding of the circuit and a parametric search of the important parameters is much more reliable. Pnp b772 transistor replacement electrical engineering. To control the impact of the covid19 outbreak, indian gov. Npn transistor 2n2222,three pins 2n2222 npn transistor to92 npn transistor assortment ki 2n2222a,20 pcs.

Simplest fm transmittermodulation circuit with bf494. Npn medium frequency transistor bf199 package outline unit a outline references version european projection issue date iec jedec eiaj mm 5. M9642, the full number is 48869642 and now you can cross reference the transistor. Searching the right transistor for substitution is a skill, if you replace wrong specifications of transistor i. Bf195 datasheet, equivalent, cross reference search. Full text of mullard technical handbook book 1 part 2. Vrt comparison table for semiconductors from a to z edition. I am searching something can replace these transistors. Finding transistor replacement can take you hours if you dont know the right method to do it. Transistor equivalent book pdf free download by corfikome.

Searching the right transistor for substitution is a skill, if you replace wrong specifications of transistor. Bridgold 20pcs tip120 to220 npn darlington bipolar power transistor, 5a 60v hfe. This is a pdf format of the well known hardware pinout book, which covers various computer, electrical and electronic item pinouts. Regarding the bf194 5 types, when these partially fail, the symptom is a loss of sensitivity in the receiver. Transistor equivalent electronics forum circuits, projects. When i apply 400 mhz, the transistor oscillates wildly and gets very hot.

Apr 05, 2008 it has been very useful for me because it doesnt provide only the nte replacements. But the reliability and failure modes of vintage transistors is interesting, and is the subject of this article. Here is the circuit diagram of the simplest fm transmitter using a transistor. The bf194 has a near equivalent in the bf184, the bf1q5 in the bf185, the. Texas instruments transistor and diode databook 1st ed 1973 datasheets for diodes from 1n251 on and transistors from 2n117 on acrobat 7 pdf 34. Bf194 equivalent datasheet, cross reference, circuit and application notes in pdf. Diode 1n9148 1n4307 1n4532 diode 1n3605 2n2222 chip 2n2369 transistor se708 ma1704 ma1703 text. However, sgsthomson microelectronics assumes no responsability for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may results from its use.

More than 490,000 part numbers, type numbers, and other identifying numbers listed. The best equivalent transistors are the af12x series that are the same piece of germanium. If you install the wrong polarity, the sandwich wont work. It goes further and it offers exactly what you were talking in this topic, real replacements like the 80s and 90s replacements crossreference books. International transistor equivalents guide bernard babani. At the maximum voltage, also called a breakdown voltage bv, electrons. But 8050 and 8550 seem by fit to make pushpull amplifer. More time is spent figuring out which one to replace and, sometimes, what to replace it with. Wikipedia books can also be tagged by the banners of any relevant wikiprojects with classbook. Bc516 equivalent bf195 equivalent bf195 bf194 bf197 2n4996. In certain cases, the quoted collector current may be exceeded.

Bf494 datasheet, equivalent, cross reference search. Bf199, bf494, 2n4001, 2n4003, mpsa18 and there are all i have. Oct 06, 2015 say you had a motorola house number, i. Oct 24, 2015 i am searching something can replace these transistors. This is a wikipedia book, a collection of articles which can be downloaded electronically or ordered in print. Understanding transistor replacement, substitution and. Even a versend now for free satile multimeter that we teach 76 page book. The best equivalent transistors are the af12x series that are the same piece of germanium, but mounted in a to72 case. General purpose radio frequency transistor bf 494 q1 is used here for obtaining fm modulation. The assignment of transistor elements b,c,e to leads, i.

Product specification supersedes data of september 1994 file under discrete semiconductors, sc04 1997 jul 08. A substitute transistor must have the same polarity, either pnp or npn, as the original. Bf194 datasheet, equivalent, cross reference search. We request our customers to stay at home and stay safe. Cross reference universal transistor reference page 1. Unit icbo collector cutoff current ie 0 for bf 457 for bf 458 for bf 459 vcb 100 v vcb 200 v vcb 250 v 50 50 50 na na na vbrceo collectoremitter breakdown voltage ib 0 ic10ma for bf 457. Transistor substitution desoldering and replacing a transistor takes very little time. View forum posts private message view blog entries view articles full member level 5 join date jun 2005 posts 240 helped 45 45 points 4,206 level 15. Bf194 bf194 bf195 npn transistor components datasheet pdf data sheet free from datasheet data sheet search for integrated. So we cannot process or ship any order untill 3rd may. Pinning pin description 1 base 2 emitter 3 collector fig. Free device maximum ratings rating symbol value unit collector. Bf324 cross reference electronic circuits, tv schematics. A complete guide to semiconductor replacement and substitutions from the makers of photofactr service documentation.