germanium transistors elec

  • Was Germanium used in transistors

    Was Germanium used in transistors

    Yes, germanium was the only material used in transistors from when they were invented in 1947 until 1954 when the first successful silicon transistor was made.

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  • Redesign Germanium Transistor Circuits, Part 1

    Redesign Germanium Transistor Circuits, Part 1

    Redesign Germanium Transistor Circuits, Part 1 Today... Build Germanium Transistor Projects with Silicon Transistors! Return with us now to the halcyon days of germanium!. Germanium transistor projects intrigued experimenters from the early days in the 1950s until the early 1970s. In the Seventies, the superior silicon devices began to take over the hobby market.

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  • Adding new transistors to LTspice??? | Electronics Forum ...

    Adding new transistors to LTspice??? | Electronics Forum ...

    May 01, 2018· I basically want to enter all those listed old germanium transistors into standard.bjt with the appropriate codes that represent those transistors'' specifications so I can accurately reconstruct sections of the camera''s circuits where the transistors are in LTspice, run the appropriate signals through them and look at the output signal, then ...

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  • Does anybody still make Germanium transistors ...

    Does anybody still make Germanium transistors ...

    Sep 10, 2004· application. With any kind of modern transistor that will eat 0.6V or more. Germanium was happy with 0.2V. Much better when there is only 1.5V supply to begin with. Chips such as LV rail-to-rail are often totally cost prohibitive. So, is there a low cost source of new Germanium transistors? Kind of like the Russian factory Svetlana that still ...

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  • Inventing the Transistor - CHM Revolution

    Inventing the Transistor - CHM Revolution

    The first transistor used two closely spaced gold contacts pressed onto the surface of a slab of high-purity germanium. Scientists in the 1920s proposed building amplifiers from semiconductors. But they didn''t understand the materials well enough to actually do it. In 1939, William Shockley at AT ...

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  • how do you find the pinout for unknown transistors ...

    how do you find the pinout for unknown transistors ...

    Feb 28, 2006· Electronics Forums. Home Forums > Archive > Electronics Newsgroups > Electronic Components > how do you find the pinout for unknown transistors? ... At those vintage germanium transistors center pin is the base and the collector is marked with a .

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  • PNP Germanium Transistors

    PNP Germanium Transistors

    PNP Germanium Transistors SpareElectronicParts Has new, new old stock, and obsolete transistors in stock, including hard to find germanium transistors used in restorations, projects, and effects pedals.

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  • SOARINGTORTOISE ELECTRONICS - Home

    SOARINGTORTOISE ELECTRONICS - Home

    SoaringTortoise Electronics offers electric guitar effects and amplifiers made from recycled materials. Artfully handmade and tuned by ear. At SoaringTortoise Electronics we strive to build useful, great sounding, dependable, and interesting electric guitar effects and .

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  • The American 2N series Transistors - Wylie

    The American 2N series Transistors - Wylie

    The Western Electric N-type point-contact transistor 2N23 from 1953 uses the "outline number 2" bead case. This case is a plastic semidisk encapsulating the germanium die, which is fixed to the metal strip forming the base connection. The two thin wires are the emitter and .

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  • What Are Diodes, GTO And Transistors? - Electrical idea

    What Are Diodes, GTO And Transistors? - Electrical idea

    Dec 12, 2018· A semiconductor diode was the first semiconductor electronic devices. Most diodes are made of silicon, while selenium or germanium is also used sometimes.Gate Turn-Off Thyristor, is a high powered semi-conductor device. It differs from a normal Thyristor. Transistors: This is semi-conductor device that is used for amp

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  • General Electric History - Transistor History - Google

    General Electric History - Transistor History - Google

    Germanium Whisker Transistors Robert Hall returned to General Electric Research Laboratories Schenectady just as Bell announced its point-contact transistor. Hall had just graduated PhD from Caltech and had previously worked at the laboratories on a range of projects including the Harper North Wartime radar diode project. Dr Albert Hull was Assistant Director of the Laboratory.

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  • Guitar FX Layouts: Germanium Transistor Tester

    Guitar FX Layouts: Germanium Transistor Tester

    Aug 13, 2012· Germanium Transistor Tester I''m lazy and use a Peak DCA55 to measure transistors which will automatically give you the leakage reading for germanium with the added advantage of identifying the pins for you so you don''t even have to refer to the datasheet.

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  • TRANSISTORS - electronics tutorials</h3><p>Jun 29, 2018· Transistors used in most early entertainment equipment were the germanium types. When the silicon transistor was developed it took off dramatically. The first advantages of the transistor were relatively low power consumption at low voltage levels which made large scale production of portable entertainment devices feasible.</p><h3>Where to look for germanium transistors in old electronics?

    TRANSISTORS - electronics tutorials

    Jun 29, 2018· Transistors used in most early entertainment equipment were the germanium types. When the silicon transistor was developed it took off dramatically. The first advantages of the transistor were relatively low power consumption at low voltage levels which made large scale production of portable entertainment devices feasible.

    Where to look for germanium transistors in old electronics?

    Jan 25, 2006· The first generation of home organs. These turn up cheap at thrift stores (either nobody can play anymore, or they havn''t got the space).Some contain over 80!!! because, each note is produced by dividign down that note an octave higher.. the dividing is done by a flip-flop, that''s two Ge transistors .

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  • Substituting Silicon transistors for Germanium | All About ...

    Substituting Silicon transistors for Germanium | All About ...

    Aug 07, 2017· Yes the germanium transistors have some undesirable qualities, but they can allow starting a boost converter even at 0.5 volts. Once the converter starts, the germanium transistor is no longer needed so it goes back to working on silicon.

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  • Germanium Transistor Based Audio Power Amplifiers: High ...

    Germanium Transistor Based Audio Power Amplifiers: High ...

    May 10, 2013· Even though they are the first ones to be mass produced for consumer electronics use, germanium transistors are somewhat difficult to manufacture and not very stable. Germanium transistors are very hard to produce with consistent parameter quality on a large scale – as in widely varying gain, leakage, noise and overall tone – even germanium transistors manufactured from the same batch.

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  • TRANSISTORS - electronics tutorials

    TRANSISTORS - electronics tutorials

    Jun 29, 2018· Transistors used in most early entertainment equipment were the germanium types. When the silicon transistor was developed it took off dramatically. The first advantages of the transistor were relatively low power consumption at low voltage levels which made large scale production of portable entertainment devices feasible.

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  • Transistors

    Transistors

    © 2011 by CÔNG TY CỔ PHẦN CÔNG NGHỆ ĐIỆN TỬ E-SKY (E-SKY TECHNOLOGY.,JsC) All Rights Reserved.

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  • Semiconductors | Transistors | NTE Electronics

    Semiconductors | Transistors | NTE Electronics

    NTE has a complete selection of Semiconductor Transistors including Bi-Polar transistors, Germanium transistors, Darlington transistors. Cookie Consent by TermsFeed Supplying Quality Electronic, Electrical and OEM Components for Over 39 Years!

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