Ac128 germanium transistor datasheet booklet

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. We use an mje340 transistor for q7 even though a small signal transistor could easily handle the task. Ac128 datasheet pdf germanium small signal transistors gpd. The column marked case is the outline of the transistor case.

You could buy a fuzz face combo or maybe there are fuzz factory combo packs available. Does anyone have spice models for germanium transistors. Ac128 xref to nte158 af power germanium pnp old transistors bin ac128 ac128k as1 similar to nte158 pnp ge af this transistor is in a rectangular heatsink with mtg hole qty 4 in germwol ad3 xref to nte179 ge pnp audio or power switching to3 case in a bag in ecgbulk1 bin ad3. Any germanium pnp will technically work, though there are suggested gain hfe values for both. Ac128 datasheet, ac128 pdf, ac128 data sheet, ac128 manual, ac128 pdf, ac128, datenblatt, electronics ac128, alldatasheet, free, datasheet, datasheets, data sheet, datas sheets, databook, free datasheet. The germanium transistors suffer from strong dependence on temperature and humidity, high variability ofthe parameters, high probability of breaking during soldering, high cost due to the fact that germanium is an obsolete technology. Ac128 datasheet, ac128 pdf, ac128 data sheet, datasheet, data sheet, pdf. Ac128 the 3port nonlinear model of the pnp transistor. These can occasionally be found on ebay, usually advertised as germanium devices.

Germanium transistors the following table lists the parameters for germanium transistors. Ac1xx transistor bipolar online from elcodis, view and download ac128 pdf datasheet, tools specifications. Ac126 datasheet, ac126 pdf, ac126 data sheet, ac126 manual, ac126 pdf, ac126, datenblatt, electronics ac126, alldatasheet, free, datasheet, datasheets, data sheet, datas sheets, databook, free datasheet. Etc1 germanium small signal transistors,alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. Spice models for ac127 and ac128 i made on a fairly detailed datasheet.

Ac128 datasheet germanium small signal transistors. The very old ac128 germanium transistor had a different baseemitter voltage requirement compared to a silicon transistor and had a poor high frequency response so it will sound different to a silicon transistor. Ac128, 2ac128pnp germanium alloy high gain transistor. Ac12801 datasheet, equivalent, cross reference search. The base currents will be a little higher if the test transistor is a germanium type, which will exhibit a forward voltage drop in its base emitter junction of around 0. Looking to replace hard to get germanium transistors with silicon. The rca transistors and semiconductor diodes brochure from 1957 contains an introduction on semiconductor physics along with detailed specifications on germanium pnp transistors and a few semiconductor diodes 1n34a, 1n38a, 1n54a, and 1n58a, dimensional outlines, an interchangeability directory, and example. Two germanium transistors type ac128 are selected by us for the best fuzz face sound. Texas instruments transistor and diode databook 1st ed 1973 datasheets for diodes from 1n251 on and transistors from 2n117 on acrobat 7 pdf 34. Note for a matched npn germanium transistor spice model. Cases gec mazda stc aei hivac newmarket texas transistors. Make offer 2x gt22 matched low leak pair germanium pnp transistors sft322 ac128 2n2706 6x tested acy33 vi siemens germanium pnp guitar effect transistors 32v 1a 1. Low power af amplifier transistors like the oc71 can be replaced with the economically priced ac125. Njsemi germanium small signal transistors,alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors.

Ac128 datasheet, equivalent, cross reference search. Transistor applications, rca transistor manual t h is book has been prepared to. Its never really done it for me so i mostly use a bc108 sunface. Literature collector info sammler ktt 196970, tvt 1979 eca. But when you need to use transistors, it has several advantages, such as saving you can take old equipment come to made small circuits easier than the ic. Text in other languages may differ dimensions whd incl. Ac128 datasheet, ac128 datasheets, ac128 pdf, ac128 circuit. The to1 standard was the first allmetal case used for germanium transistors when the black glass models were abandoned around 1964. Diodes and transistors pdf 28p this note covers the following topics. I tested these models and everything worked for me.

Ac128 datasheet pdf 1 page new jersey semiconductor products, inc. Ac128 datasheet, ac128 pdf, ac128 data sheet, datasheet, data sheet, pdf, gpd optoelectronic devices, germanium small signal transistors. Rc197604 bipolar junction transistor electrical connector. Nkt275 1equivalent transistor ac127 orp12 gex34 sft353 oc171 equivalent ac128. Ac128 xref to nte158 af power germanium pnp old transistors bin ac128 ac128k as1 similar to nte158 pnp ge af this transistor is in a rectangular heatsink with mtg hole qty 4 in germw ac7 tfk 4 leads used pulls qty 2 to1 taller thinner type metal can bin mixold1 ac7. Mullards first silicon transistors were the oc201 to oc207, pnp alloy types using the standard so2 metaloverglass construction such as the oc201 shown. The medium gain set will get you the great balanced fuzz sound that you know from the better boutique fuzz pedals. Ac128 datasheet pdf 1 page list of unclassifed manufacturers. Tp16 20 00200123 transistors, pnp silicon to 5, unmarked. The circuit diagrams included in this manual are for. Most of these use the vasca so2 encapsulation, such as the 2g302 shown. Tfk 949 al103 2n1167 halbleiter index transistor ad161 ac128 bsy19 tfk 1007 ac2.

These are many simple audio amplifier circuit diagram using transistor. The latter types listed were often further encapulated in an aluminium can for improved heat dissipation the oc81d was often used as a driver ahead of an interstage phasesplitting transformer, and a. A1012 xref to nte378 pnp to220 green colored transistors qty 4 in bin 0512c power ampswitching transis a1015gr xref to nte290a small blk plastic transistor pnp af on the uniden. This concerns european series like acs, industrial series acys, asys, aszs, the british nkts and the japanese 2sas. Germanium pnp transistors, manufactured by toshiba ac128 transistors are a popular choice for fuzz and overdrive pedals. Ac128 pdf, ac128 description, ac128 datasheets, ac128 view. Transistor manual third edition general electric company semiconductor products 1224 west genesee street syracuse, new york. The reason for using a power transistor is that its package and junction does a better job of tracking the temperature dependent changes in the junctions of the output power transistors and thereby gives better overall quiescent current control. Ac128 datasheetpdf list of unclassifed manufacturers. Pnp germanium alloy transistor for af low power amplifier applications. Ac188 germanium transistor price, stock, datasheet.

Mullard soon switched to using the bc prefix for silicon, and ac for germanium, eliminating the confusion. On the small bear fuzzface faq, there is a drawing that illustrates how to measure transistor leakage near the end of the page. Electronics today 1979 12 free download as pdf file. Components for cbradios and transmitterreceiver equipment. You could also experiment and get a sound you like that goes beyond the standard. The data in the manual 69 tungsram transistor handbook i have for that. I have, however, been hankering after a germanium fuzz face and so had a look inside my fuzz face. Germanium transistor assortment 20 pcs npn pnp hfe fuzz gain incl 20 nte electronics nte160 pnp germanium transistor for rfif amplifier, fm mixer hilitchi 24values 2n2222s9018 bc327bc558 npn pnp power general purpose fidgetfidget 10pcs ac128 pnp transistors to18, germanium small signal. The first germanium transistors that i encountered as a kid were the glassencapsulated ocxx types oc44, oc45, oc71, oc81d, oc81, etc. Rf bipolar small signal transistor rf fet small signal transistor rf power transistor shortform transistor catalogue integrated circuits variable capacitance diode albrecht radio equipment scanner documentation. Ge of a transistor power outpower in can be up to 40,000 in some applications.

Ive got a dennis cornell reissue fuzz face grey one from about 2001ish. Full text of practical wireless 1971 december see other formats. I attach 2 schematics to show where these are used etc. Audio medium power types oc72 oc81d oc81 can be replaced with an ac128, a relatively high voltage, high current device. Etc1, alldatasheet, datasheet, datasheet search site for electronic components. Tp16 20 0020012%3 transistors, pnp silicon to 5, unmarked. Germanium transistor assortment 20 pcs npn pnp hfe fuzz. History of cyber espionage and cyber weapons, part 2 by dr david maddison. You will find instructions by clicking the blue info button, above right and here. Ac128 germanium transistors transistorsics lowleakage pnp germaniums. The input signal is applied across the emitterbase connections. The range of base currents gives the unit a theoretical gain measuring range of around 9. On the higher notes you will get a good balance between octave up and standard fuzz sounds.

Tp15 20 0081 germanium pnp audio output transistor, white glass type. Germanium small signal transistors, ac128 datasheet, ac128 circuit, ac128 data sheet. Ac datasheet, ac pdf, ac data sheet, datasheet, data sheet, pdf, gpd. Ac188 datasheet germanium small signal transistors. Germanium transistors such as the ac128 transistor require less forward bias than silicon transistors. As far as i am aware, ti in the uk started by manufacturing germanium transistors in the 2g series. Currently, ics has been used in many audio amplifiers, especially small circuit. Transistors germanium lowmedium power transistors book 1 parts 1 and 2 type no. For the version mounted in a block of aluminium please see ac188k in related products tab above. Free essays, homework help, flashcards, research papers, book reports, term papers, history, science, politics.

Ac128 germanium small signal transistors components datasheet pdf data sheet free from datasheet data sheet search for integrated. Share 10 germanium transistors ac 128 vi nos pnp tungsram. The case drawings are shown at the bottom of the page. Electronics today 1979 12 electrical connector synthesizer. Full text of electronics today international, australia 1979. Ac128 datasheet14 pages etc1 germanium small signal. Ac128 transistor datasheet pdf ac datasheet pdf download germanium small signal transistors, ac data sheet. Nkt275 1 equivalent transistor ac127 orp12 gex34 sft353 oc171 equivalent ac128. Radio electronics constructor magazine from england. Af109r datasheet, cross reference, circuit and application notes in pdf format. Cbe 5mm diameter across widest part of case body height 10mm.