The playing and attitude are waayy more important than a specific transistor or even circuit type, ime. In practice, the af125 can be used to replace af114115116. Oc71 datasheet, equivalent, cross reference search. Ac128 germanium transistors transistorsics lowleakage pnp germaniums perfect for all your fuzzy desires. Germanium power devices, germanium small signal transistors, scan, pdf. Beta is typically 150, f t about 60 mhz the oc170 was developed by philips and introduced in the late 1950s.
They have a fourth connection, enabling the housing of the transistor to be connected to ground. Valve tube and transistor with informationprojects and technical help. Uk vintage radio repair and restoration transistor faults. When testing a transistor with a screen lead such as the af117 series, check the resistance between the screen and each of the other leads. These models are very fragile, sensible to static electricity, and therefore to avoid. Onsemi, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. Please consult the most recently issued data sheet before initiating or completing a design. The column marked case is the outline of the transistor case. Applies to shipments to germany with our standard courier service dhl when paid via paypal, credit card or lastschrift. Delivery times for other countries and shipping methods can be found on our shipping information page. Rangemaster treble booster clone, freaking awesome. Electronics handbookcircuitsnpn transistor configurations. However, if mk ii is the thing that totally scratches your particular musical itch, the differences can.
Irc the transistor instruction manual pdf download. It seems stock of these is rapidly dwindling worldwide. Oc70, oc71, or oc75 using a transistor test board to measure their performance. These are 100% hand built by my kids well my family of employees here at the shop with hand selected nos mullardphillips oc75 germanium transistors. The to7 encapsulation has a 4th lead that is connected to the metal can, and this is usually connected to ground so that the transistor inside is screened.
Transistor semiconductor history texas instruments rca bell laboratories. Anyway, the problem with these transistors is not the germanium itself rather, its the package the transistors are mounted in. Transistor semiconductor history texas instruments rca bell laboratories western electric general transistor fairchild tungsol sylvania mullard philips stc newmarket general electric philco gec motorola shockley faraday willoughby smith william adams richard day charles fritts braun schuster henry round jagadis bose greenleaf pickard alan wilson walter schottky boris davydov nevill mott. The only npn transistors you are likely to encounter are in transformerless output stages. Texas instruments transistor and diode databook 1st ed 1973 datasheets for diodes from 1n251 on and transistors from 2n117 on acrobat 7 pdf 34. B1185 datasheet pnp power transistor 60v, 3a rohm, 2sb1185 datasheet, b1185 pdf, b1185 pinout, b1185 manual, b1185 schematic, b1185 equivalent. 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. A description of the sites history is available on the web 14. Sep 15, 2019 this simple am transmitter circuit include of many parts. This book also has a very comprehensive glossary, index, and equations.
Oc75 asy26 germanium small signal transistors oc74 germanium power transistors germanium power oc77 2n1188 oc75 oc76 text. Germanium power transistors germanium power oc77 2n1188 oc75 oc76. These can occasionally be found on ebay, usually advertised as germanium devices. Oc75 oc7x germanium small signal transistors components datasheet pdf data sheet free from datasheet data sheet search for. High voltage 75v video amplifier for transistor tvs. Mullard soon switched to using the bc prefix for silicon, and ac for germanium, eliminating the confusion. Fully tested with a peak atlas dc55 and sorted for gain, compensating for leakage. If this datasheet link is broken, the datasheet may still be available at. Sft337 transistor datasheet pdf, sft337 equivalent. Emitter see detailed ordering and shipping information in the package.
For the radio constructor we have an archive of vintage circuits schematics to build. Bc546b, bc547a, b, c, bc548b, c amplifier transistors arduino. Transistors made of germanium a semimetallic element produce a warm, rich, and extremely dynamic sound. 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 the operation is quite simple and is separated by categories such as. The pedal is based on the much soughtafter vintage sixties twotransistor tonebender mark 1. Ok, so there is some really weird stuff here, but if you have been hunting for weeksand you see it here wow, then thats job done.
The keeley germanium ecstasy treble booster pedal has a musical break up and gain as well as a rich chocolate texture due. Oc45 transistors 30 in stock to buy, photo, pdf datasheet. Ac122 datasheet germanium small signal transistors. The oc170 is an alloy diffused germanium pnp transistor it has a breakdown voltage of about 20 v and a maximum collector current of 10 ma.
Quad eia485 line drivers, mc75174 datasheet, mc75174 circuit, mc75174 data sheet. Semelab, alldatasheet, datasheet, datasheet search site for electronic components and. Bipolar, power, rf, digital, igbt, unijunction, fet, jfet, and mosfets. The keeley germanium ecstasy treble booster pedal has a musical break up and gain as well as a rich chocolate texture due to these highly sought after transistors.
Tube oc 45 or rohre oc45 id33673, transistor, wires and rfifstage shown. Transistor silicon npn epitaxial type pct process high frequency amplifier applications. Bipolar npn device, buy71 datasheet, buy71 circuit, buy71 data sheet. Liven up your fuzz face, pimp your fuzz factory, wrangle your rangemaster. C utc assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values such as maximum ratings, operating condition ranges, or. Diodes and transistors pdf 28p this note covers the following topics. Absolute maximum ratings t a 25c unless otherwise noted. Any orders placed through this store will not be honored or fulfilled. Oc75 datasheet, equivalent, cross reference search.
Uk vintage radio repair and restoration transistor. I did a fair amount of abcing with some great mk iis in the past using oc 75, oc 81, and oc 84 trannies. An ever growing selection of both silicon and germanium bipolar transistors. This easytouse book covers all transistor types including. There is a transistor q1 act as increase the audio signal af from the crystal microphone and a resistorsr3 that limit amplitude of sound signal is increased by q1. View and download irc the transistor instruction manual online. Posted on july 15, 2016 september 17, 2019 by pinout. A site for the novice or established collectorrestorer of vintage radio sets and electronics. Oc71 datasheet, cross reference, circuit and application notes in pdf format. Reference manual of transistor circuits descriptions of more.
Ac128 datasheet, ac128 pdf, ac128 data sheet, ac128 manual, ac128 pdf, ac128, datenblatt, electronics ac128, alldatasheet, free, datasheet, datasheets, data sheet. 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. Oc170 transistors 10 in stock to buy, photo, pdf datasheet. Npn general purpose amplifier this device is designed as a general purpose amplifier and switch.
Loving it again this time around, maybe ill end up just sticking with it like i know i should haha. The useful dynamic range extends to 100 ma as a switch and to 100 mhz as an amplifier. Tube oc 75 or rohre oc75 id33808, transistor, wires and audio frequency shown. The transistor q2 generate a radio frequencies rf in form of the colpitts oscillator circuit. Jun 15, 2015 one may cite them here as early germanium high frequency transistors, designed for frequency modulation receivers. Cases gec mazda stc aei hivac newmarket texas transistors. The case drawings are shown at the bottom of the page. Jul 15, 2016 b1185 datasheet pnp power transistor 60v, 3a rohm, 2sb1185 datasheet, b1185 pdf, b1185 pinout, b1185 manual, b1185 schematic, b1185 equivalent. Datasheet archive tesla datasheets oc70 oc71 oc72 oc75 oc76 oc77 oc169 oc170 101nu70 102nu70 103nu70 104nu70 105nu70 106nu70 107nu70 101nu71 102nu71 103nu71 104nu71 152nu70 153nu70 154nu70 155nu70 156nu70 p pa pb p14 gc500 gc501 gc502 gc507. Sep 11, 2016 thinking back now, im fairly certain it had the oc75 s as well. Buy online discounted silicon and germanium transistors. This simple am transmitter circuit include of many parts. Germanium transistors the following table lists the parameters for germanium transistors.
To my ears, the 75s have the coarsestmost aggressive breakup of the three, and the 81s the finestmost complex, with the 84s straddling the fence. 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. Full text of mullard data book 196566 internet archive. Oc76 germanium transistor pnp 90110 hfe build your. Vintage mullard semiconductors andrew wylies watercolours pages. This part is the equivalent replacement for the following. With the right biased voltage at the base, the transistor can be operated like a mechanical switch. Sft337 datasheet, equivalent, cross reference search. Mullards first silicon transistors were the oc201 to oc207, pnp alloy types using the standard so2 metaloverglass construction such as the oc201 shown.
C380 datasheet, c380 pdf, c380 data sheet, datasheet, data sheet, pdf. Bd, bda, bdb, bdc pnp silicon power transistors 1 june revised september specifications are subject to change without notice. But after going through so many mkiis, ive found myself back to the stone bender for the third time nine years after owning my first. Comset semiconductors lf large signal power amplification low saturation voltage high dissipation rating intended for a wide variety of intermediatepower applications.
Download ic database equivalent guide 100 thousand. The transistor handbook, one in a series of component handbooks, has the answers to all of your daily application questions. It is especially suited for use in audio and inverter circuits at 12 volts. Oc76 datasheet, equivalent, cross reference search. Base 1 2002 fairchild semiconductor corporation rev.
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