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germanium transistor redesign

Redesign Germanium Transistor Circuits

Redesign Germanium Transistor Circuits. We are here for your questions anytime 24/7, welcome your consultation. Get Price. Junction transistor type 2n35 ri ca 50 ppfd.Ceramic capacitors spin subminiature tube socket c6 005 st make friends with transistors.T this series of easy -to -assemble projects is designed to demonstrate basic applica ...

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Build this 8 Transistor Stereo Amplifier

2021-1-19  Germanium was a relatively easy element to work with during the early days of the transistor but it's weaknesses made Silicon a more attractive element after manufacturing challenges were overcome. Germanium has a lower energy gap between the valence and conduction band which results in higher leakage current proportional to temperature.

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The Accutron Revolution - Accuracy Through

2012-1-4  Although the 214 movement underwent numerous changes throughout its production lifespan, perhaps the most notable is the complete redesign of the electrodynamic transducer circuit. The 214 was initially equipped with a 'three wire' circuit, which uses a germanium PNP transistor.

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TRANSISTOR Ot - WorldRadioHistory.Com

2020-2-4  transistor circuit. Detection-the separa-tion of the audio and radio components of the tuned signal-takes place in the 1N34 diode and the base -emitter circuit of the transistor. The program that comes through should be heard clearly and with good volume in the headphone. 33 americanradiohistory

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Analog taperecorders used as musical instruments

2019-5-1  Never exchange a germanium transistor for a silicium one! If replacing with silicium is the only way to go, you have to redesign the entire circuit for operation within silicium boundaries. After also replacing the leaky capacitor C712 (250uF) on the oscillator board, everything was fine again.

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The transistor: The most important invention of the

The first transistor radio, the Regency TR-1, went on the market for $49.99 in 1954. The radio contains four transistors. Sony Corp. introduced the first portable, transistorized TV, the TV8-301 ...

More

Types Of Technology

2020-10-7  3v Germanium Transistor Radio Build This 8 Transistor Stereo Amplifier Picking Thermistor For Low Power Push Pull Output Amplifier Kay Vanguard 704 With Vibrato Tone Gems Redesign Germanium Transistor Circuits Part 3 3w Audio Amplifier Using Ac187 Ac188 Pair Engineering Projects Germanium Transistor Amplifier Circuit Electronics 674 Best Amps ...

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Transistor History - Western Electric Main Page

In 1962 Bell decided to redesign the TD-2 with the TD-3 which would feature all solid state devices with the exception of the travelling wave tube. It moved into production and use in 1968. ... Lee C 1956 A High Frequency Diffused Base Germanium Transistor Bell Sys Tech 35 23-34.

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Analog taperecorders used as musical instruments

2019-5-1  Never exchange a germanium transistor for a silicium one! If replacing with silicium is the only way to go, you have to redesign the entire circuit for operation within silicium boundaries. After also replacing the leaky capacitor C712 (250uF) on the oscillator board, everything was fine again.

More

20 best fuzz pedals to buy in 2020 - Guitar All ...

2021-1-26  It cleans up better than most fuzz pedals we’ve tried. As mentioned, the noise level jumps up a fair bit with the fuzz cranked up, but that comes with the territory. If you’re looking for a fuzz pedal that’s handbuilt, versatile and germanium transistor-based, we can’t recommend this one enough. Check out our review here. Teisco Fuzz

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The Accutron Revolution - Accuracy Through

2012-1-4  Although the 214 movement underwent numerous changes throughout its production lifespan, perhaps the most notable is the complete redesign of the electrodynamic transducer circuit. The 214 was initially equipped with a 'three wire' circuit, which uses a germanium PNP transistor.

More

What transistor do you use as a CK722 substitute? -

The above means that just about any Germanium, PNP, Audio-Amp units will work. Which means, just about any Germanium PNP Transistor will work in place of a CK-722. Most will likely work better, since the CK-722 was a very early, experimenter, low-cost transistor, prior to the designs of better units.

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The future of germanium ? ( diodes mainly )

2005-12-13  passivated germanium transistor. Moisture sensitivity of the old unpassivated germanium transistors was one of their worst faults. Dec 9, 2005 #3. Dave Moore Guest ... redesign a boatload of circuits to eliminate Germanium diodes and transistors (and schottkys were cheating). ...that was

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Eowave Modularsynthesizers

The germanium transistor will add this particular distorted sound made by € 139, 00. Sold out. Eowave Domino synth voice, black. Eowave Domino synth voice, black The Domino is a redesign of its desktop synth bigger brother. Packing a full-featured synthesizer voice into 10HP, the Domino includes a saw/square wave oscillator, ladder type ...

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Historic 1962 Fairchild 2N1613 Transistor: The First ...

The planar process virtually made the germanium transistor and all other semiconductor manufacturing techniques obsolete within months. Fairchild went on to create the first planar integrated circuits, called micrologic. The first ICs ever mass-produced were three input NOR gate used in the Block 1 Apollo Guidance Computer (AGC).

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Maestro Fuzz Tone - davidmorrin

2021-1-11  I have a photo from a 1957 electronics manual that illustrates the internal mechanisms of a typical germanium transistor on the page devoted to those devices (see link at beginning of paragraph). Another interesting note from the patent is that the second and third stages are said to add a minimum of 25% THD to the input signal, with 100% THD ...

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Types Of Technology

2020-10-7  3v Germanium Transistor Radio Build This 8 Transistor Stereo Amplifier Picking Thermistor For Low Power Push Pull Output Amplifier Kay Vanguard 704 With Vibrato Tone Gems Redesign Germanium Transistor Circuits Part 3 3w Audio Amplifier Using Ac187 Ac188 Pair Engineering Projects Germanium Transistor Amplifier Circuit Electronics 674 Best Amps ...

More

Transistor History - Western Electric Main Page

In 1962 Bell decided to redesign the TD-2 with the TD-3 which would feature all solid state devices with the exception of the travelling wave tube. It moved into production and use in 1968. ... Lee C 1956 A High Frequency Diffused Base Germanium Transistor Bell Sys Tech 35 23-34.

More

SiGe HBT Technology: Future Trends and TCAD-Based

A technology roadmap for the electrical performance of high-speed silicon–germanium (SiGe) heterojunction bipolar transistors (HBTs) is presented based on combining the results of various 1-D, 2 ...

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Sinclair Radionics - an inside view. Part 2. - Torrens

By 1967 the germanium Micro-alloy transistors that Sinclair had used in the early Micro-6 were becoming obsolete, so Clive Sinclair set an engineer (I believe it was Jim Westwood) to work to design a new radio of the same size using silicon transistors. ... If pressure was inadequate the legs of the transistor (which passed though the ceramic ...

More

The transistor: The most important invention of the

The first transistor radio, the Regency TR-1, went on the market for $49.99 in 1954. The radio contains four transistors. Sony Corp. introduced the first portable, transistorized TV, the TV8-301 ...

More

The future of germanium ? ( diodes mainly )

2005-12-13  passivated germanium transistor. Moisture sensitivity of the old unpassivated germanium transistors was one of their worst faults. Dec 9, 2005 #3. Dave Moore Guest ... redesign a boatload of circuits to eliminate Germanium diodes and transistors (and schottkys were cheating). ...that was

More

Historic 1962 Fairchild 2N1613 Transistor: The First ...

The planar process virtually made the germanium transistor and all other semiconductor manufacturing techniques obsolete within months. Fairchild went on to create the first planar integrated circuits, called micrologic. The first ICs ever mass-produced were three input NOR gate used in the Block 1 Apollo Guidance Computer (AGC).

More

Analog taperecorders used as musical instruments

2019-5-1  Never exchange a germanium transistor for a silicium one! If replacing with silicium is the only way to go, you have to redesign the entire circuit for operation within silicium boundaries. After also replacing the leaky capacitor C712 (250uF) on the oscillator board, everything was fine again.

More

Table of Contents - Lansdale

2008-8-13  Our company was founded in 1964 to supply aftermarket germanium transistor prod-uct lines from the Philco-Ford Company in Lansdale, PA. We relocated our headquarters and manufacturing facilities to Phoenix, AZ in 1976, after acquiring a major product line from Motorola. As the “semiconductor aftermarket” pioneer, Lansdale recognized the

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Maestro Fuzz Tone - davidmorrin

2021-1-11  I have a photo from a 1957 electronics manual that illustrates the internal mechanisms of a typical germanium transistor on the page devoted to those devices (see link at beginning of paragraph). Another interesting note from the patent is that the second and third stages are said to add a minimum of 25% THD to the input signal, with 100% THD ...

More

3 Transistor Short Wave Radio

2021-1-26  I'm extremely happy with how the 3 Transistor Short Wave Radio looks and how well it pulls in distant stations. How The 3 Transistor Short Wave Radio Works. The 3 Transistor Shortwave Radio in this article is a regenerative radio designed to tune from 2Mhz through 30Mhz depending on the tuning coil used by the operator.

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Types Of Technology

2020-10-7  3v Germanium Transistor Radio Build This 8 Transistor Stereo Amplifier Picking Thermistor For Low Power Push Pull Output Amplifier Kay Vanguard 704 With Vibrato Tone Gems Redesign Germanium Transistor Circuits Part 3 3w Audio Amplifier Using Ac187 Ac188 Pair Engineering Projects Germanium Transistor Amplifier Circuit Electronics 674 Best Amps ...

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The Revolution In Your Pocket Invention

The transistor had been invented at Bell Labs by John Bardeen, Walter Brattain, and William Shockley, and it was announced to the world on June 30, 1948. It was made, in the beginning, of germanium, an element whose pure crystalline form is a very good insulator.

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Sinclair Radionics - an inside view. Part 2. - Torrens

By 1967 the germanium Micro-alloy transistors that Sinclair had used in the early Micro-6 were becoming obsolete, so Clive Sinclair set an engineer (I believe it was Jim Westwood) to work to design a new radio of the same size using silicon transistors. ... If pressure was inadequate the legs of the transistor (which passed though the ceramic ...

More

The transistor: The most important invention of the

The first transistor radio, the Regency TR-1, went on the market for $49.99 in 1954. The radio contains four transistors. Sony Corp. introduced the first portable, transistorized TV, the TV8-301 ...

More

A Message From the President - Lansdale

Lansdale was founded in 1964 to supply aftermarket germanium transistor product lines from the Philco-Ford Company in Lansdale, PA. We relocated our headquarters and manufacturing facilities to Phoenix, AZ in 1976, after acquiring a product line from Motorola.

More

Historic 1962 Fairchild 2N1613 Transistor: The First ...

The planar process virtually made the germanium transistor and all other semiconductor manufacturing techniques obsolete within months. Fairchild went on to create the first planar integrated circuits, called micrologic. The first ICs ever mass-produced were three input NOR gate used in the Block 1 Apollo Guidance Computer (AGC).

More

transistors - Improvement of simple regen receiver ...

2020-11-4  The tuning coil needs matching to the input impedance of the transistor - as shown the transistor will heavily damp the resonance causing the selectivity to be low. The normal way is to have a tap on the coil - probably about 1/5 to 1/10 of the way up from ground. You need a path for DC at the input of the detector diode between C3 and the diode.

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Big Tone Music Brewery Germanium FuzzBender

2020-12-24  All tested for the correct amount of leakage and gain. This is an absolute must have for any true Zeppelin fan. Big Tone Music Brewery's Germanium Fuzz Bender is a flawless recreation of the original Sola Sound Tone Bender only better because it has true bypass and it's made by hand with the finest quality parts available.

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A Microwave Analog Frequency Divider

A Microwave Analog Frequency Divider Matjaz Vidmar Nova Gorica, Slovenia Many analog frequency divider circuits were invented during the age of the vacuum tube. Some of these circuits even survived the germanium transistor age, but most were forgotten following the availability of inexpensive monolithic digital ICs such as flip-flops...

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3 Transistor Short Wave Radio

2021-1-26  I'm extremely happy with how the 3 Transistor Short Wave Radio looks and how well it pulls in distant stations. How The 3 Transistor Short Wave Radio Works. The 3 Transistor Shortwave Radio in this article is a regenerative radio designed to tune from 2Mhz through 30Mhz depending on the tuning coil used by the operator.

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Le Coin Tech : Mais au fait c’est quoi un transistor

Le Coin Tech s’attaque à une question cruciale de l’informatique moderne : Mais au fait c’est quoi un transistor ? A chaque nouvelle sortie de processeur, de carte graphique ou encore de console on nous parle de fréquence, de fonctionnalités, de calculs par seconde, mais aussi de nombre de transistosr.

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