germanium transistor 1960s

Vintage Transistor Radios of the 1950s and 60s

For Christmas in 1961 I received a GE 7 transistor coat pock radio made in New York State It used a round 9V battery Being totally blind it s difficult to further describe it but it said GE Deluxe 7 transistor on the front with I believe silver coloring bordering the nominal tuning dial directly tuned from wheel

Germanium Transistor for sale eBay

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John Eng s Dead Tech Rescue

Transistors 1965 In the early 1950 s solid state devices were made of an element called Germanium which was relatively rare and expensive In 1954 the world s first transistor radio the Regency TR used Texas Instruments germanium transistors However engineers of this young company found a way to fabricate transistors from silicon

tal oxide semiconductor field effect transistors p

20151023 High mobilityGermaniumtinSurface passivationMetal oxide semiconductor field effecttransistor MOSFET a b s t r a c tHigh mobility strained

Transistor Museum Photo Gallery Bell Labs Prototype Diffused

impurities into the grown germanium or silicon crystal during the manufacturing shows a mid 1950s prototype of a Bell Labs diffused base transistor

Bipolar junction transistor Wikipedia

The germanium transistor was more common in the 1950s and 1960s and while it exhibits a lower quotcut off quot voltage typi

Qui binary arithmetic how a 1960s IBM mainframe

27 ensp 0183 ensp Qui binary arithmetic how a 1960s IBM mainframe does math The IBM 1401 computer uses an unusual technique called qui binary arithmetic to perform arithmetic In the early 1960s the IBM 1401 was the most popular computer used by many businesses for the low monthly price of 2500 Inside a germanium alloy junction transistor used in the

Quantum computing closer with germanium

Other elements were needed as well and this provided a limitation for upscaling We now show that a single transistor can function as a quantum bit by using germanium quot The QuTech researchers have long considered germanium as a superb material for making quantum bits but manufacturing with this material has been challenging

UK Vintage Radio Repair and Restoration

17 ensp 0183 ensp By far the most unreliable transistors are the AF series used in the RF and IF stages of many transistor radios produced in the 1960s These have metal cans and four leads the fourth lead being connected to the can for screening The type numbers include AF114 AF115 AF116 AF117 OC170 and OC171 Germanium diodes tend to deteriorate

1960s transistor Etsy

You searched for 1960s transistor Etsy is the home to thousands of handmade vintage and one of a kind products and gifts related to your search No matter what you re looking for or where you are in the world our global marketplace of sellers can help you find unique and affordable options Let s get started

Soviet Union USSR Vintage Semiconductors

3 ensp 0183 ensp The П series continues with П8 Latin P8 which was originally a large PNP power transistor that became П201 Latin P201 The part number П8 was re used for a small NPN germanium low power type As in my image dated 1962 this has no suffixes I have not so far been able to identify the manufacturer that used this logo

Tunneling transistor suitable for low voltage operation The

Several embodiments of a tunneling transistor are disclosed In one embodiment a tunneling transistor includes a semiconductor substrate a source region

3M Germanium Transistor part numbers

Hi Donald There is a simple but useful initial sizing technique for output transistors for amps with AB output stages The Vce0 of the replacement transistor should be about 20 30 higher than the rail to rail voltage or the supply voltage if it is a single supply amp of the amplifier

Silicon compatible germanium based transistor with high hole

Silicon compatible germanium based transistor with high hole mobility germanium channel region and a quantum well formed by heterojunctions of

Junction field effect transistor based germanium

Junction field effect transistor based germanium photodetector on silicon on insulator Sahni S 1 Luo X Liu J Xie YH Yablonovitch E Author


25 ensp 0183 ensp The first high frequency transistor was the surface barrier germanium transistor developed by Philco in 1953 capable of operating up to 60 MHz These were made by etching depressions into an N type germanium base from both sides with jets of Indium III sulfate until it was a

Germanium Alloy Transistors

8 ensp 0183 ensp There was something called the friendly effect that if you had a germanium transistor in an ordinary room and waved your hand at it and watched on the oscilloscope the curves would wave back to you So germanium transistors had to be carefully encapsulated either in metal or ceramic or something to control the atmosphere

Germanium Properties History and Applications

Despite its failure as a transistor in the 1950s germanium is now used in tandem with silicon in transistor components for some cell phones and wireless devices SiGe transistors have greater switching speeds and use less power than silicon based technology One end use application for SiGe chips is in automotive safety systems

1Bipolar junction Transistor

3 5 5302012622 discoverers of the point contact transistor In that device a small germanium crystal was mounted 25 In

General Electric Transistor Manual Circuits Applications

1 ensp 0183 ensp Title General Electric Transistor Manual Circuits Applications Specifications 2nd Edition Author General Electric Subject transistor Keywords

SunFace and Fuzz Face Pedals What 39s the deal

Each transistor used in a fuzzface needs to be tested for several Standard germanium transistors We also have some really cool 1960s Japanese

killall 9 humans

After all it is just a 0 75 watt germanium transistor loaded amplifier But Thats not all No research so the features were not familiar

Transistor Museum Store GE 2N43 2N44 2N45

20 ensp 0183 ensp Leftovers from the 2N4X line which failed to meet minimum specs were sold as the famous 2N107 hobbyist transistor The 2N45 was obsoleted by GE in the late 1950s but the 2N43 and the 2N44 remained in production for many years into the 1960s

Archives From Germanium to Silicon A History of

6 ensp 0183 ensp Archives From Germanium to Silicon A History of Change in the Technology of the Semiconductors Abstract Silicon has been the dominant semiconductor material since the middle 1960s Today probably 95 of all semiconductors are fabricated in silicon yet the first transistor was a germanium device yet the first transistor was a

Germanium Transistor Amplifier Circuit

29 ensp 0183 ensp Germanium Transistor Verst 228 rker Schaltung Einmal AD AD162 hatte ich ein experiment mit einem paar Ich benutze immer noch fast jeden Tag Anfangs wusste ich nicht mag den Klang aber ich mag zu h 246 ren Die H 228 ufigkeit bestimmter Rede klingt sehr klar und verst 228 ndlich ist

Vintage and obsolete Specialty Electronics Components

13 ensp 0183 ensp UNMARKED PNP Germanium Transistor for Audio applications Potentioally great for vintage guitar pedals Type unknown metal can removed form a piece of audio equipment that was made in the USA in 1966

Transistor Circuit Handbook for the Hobbyist 30 Useful

12 ensp 0183 ensp helps you learn transistor circuitry while building useful equipment at a sav ing Features circuits for instrumentation high fre quency audio entertain ment and aids Title Transistor Circuit Handbook for the Hobbyist 30 Useful Battery Powered Transistor Circuits transistor radio amplifier PNP NPN receiver projects

Germanium Fin Transistor Channel Formation using Chlorine

Germanium Fin Transistor Channel Formation using Chlorine Neutral BeamEnTzu LeeShuichi NodaWataru MizubayashiKazuhiko EndoSeiji Samukawa

Vintage Hi Fi Reviewing Other Amps We Researched

No one board late 70s amp is going to be anywhere near the 1960s Details show every transistor is a UK EU Germanium so unlikely it 39ll work

How Semiconductors Work HowStuffWorks

an LED and a transistor are all made from Anything that 39s computerized or uses radio waves to aluminum below carbon and above germanium

1Bipolar junction Transistor

3 5 5302012622 discoverers of the point contact transistor In that device a small germanium crystal was 25 In 1960

History of the transistor Wikipedia

1 1951 with the point contact germanium transistor 16 By 1953 the In the 1950s and 1960s hundreds of hobbyist electronics projects based

Signal Diode and Switching Diode Characteristics

both germanium and silicon types and are given s from damage by reverse battery protection as Transistor a four layer semiconductor device

Vintage Transistors amp Diodes

10 ensp 0183 ensp This site contains my collection of vintage transistors and diodes most of them included with their original package or sleeves The devices are produced in the late fifties and early sixties except the MOSFET s from Sony they where made in 1975

CK722 Germanium transistor 102757309 Computer

quot Raytheon CK722 1 piece germanium PNP alloy junction transistor The Raytheon CK722 is one of the best known and well remembered transistors from the 1950s 1960s This device was introduced by Raytheon in early 1953 through a series of ads in magazines designed for the electronics hobbyist such as Radio Television News and Radio Electronics


Germanium phototransistors are manufactured by ion implantation Emission region is made by 160 keV 5×10 14 cm 2 phosphorous ion implantation Base


Dunlops standard Fuzz Face model is based on the late 60 germanium transistor circuit producing a warm saturated tone with overdrive qualities Alt

Transistor à jonction

19501960 fabrication et de traitement du germanium Le Caractéristiques idéalisées d 39un transistor bi

What s It Worth Vintage transistor radios

What s It Worth Vintage transistor radios BY STEVE JOHNSON Developed by both Regency and Texas Instruments the Regency TR used four germanium transistors which allowed the small 22 V battery to last for more than 20 hours Pocket transistor radios found from the later 1960s forward will usually have little to no value

Transistor Museum Construction Projects Point Contact

ALTHOUGH CBS EXITED THE SEMICONDUCTOR BUSINESS IN THE EARLY 1960S THIS Soviet Type C2A Germanium Point Contact Transistor Vintage 1950s Donated

Czechoslovak Vintage Semiconductors

19 ensp 0183 ensp Czechoslovak Vintage Semiconductors In 1950 the experimental point contact transistor was developed at VUST Between 19 point contact detector diodes and the development of alloy transistors was done In the early 1960s Tesla copied Western germanium junction transistors in the Mullard Philips OC series In my data books

Transistor Museum Construction Projects Point

17 ensp 0183 ensp Although germanium transistor technology was largely replaced by silicon in the 1960s the diffused base germanium mesa type developed in the late 1950s was one of the best high frequency performers for many years

H S Philip Wong Stanford University

s strategy on nanoscale science and technology as carbon nanotube transistor III V transistors Haensch Self Aligned n Channel Germanium

transistor crystal valve silicon transistor germanium tft thin film transistor tfts tft thin film transistor thin

Talk Bipolar junction transistor

18 ensp 0183 ensp The germanium transistor was more common in the 1950s and 1960s and while it exhibits a lower quot turn on quot voltage Vbe typically around 0 2 V making it more sensitive it also has a greater tendency to exhibit thermal runaway Preceding unsigned comment added by 64 16 215 100 21 26 UTC

Anecdote Tin Whiskers Inside of AF114 Transistors

3 ensp 0183 ensp 1960s era Germanium Transistor inside of a tin plated package 1960s era Germanium Transistor inside of a tin plated package Transistor with the package cut open to reveal tin whisker formation on the inner walls of the package Transistor with the package cut open to reveal tin whisker formation on the inner walls of the package

Talk Bipolar junction transistor Wikipedia

Hi I would ask that the Germanium Transistor section be changed from The germanium transistor was more common in the 1950s and 1960s and while it

Vintage Technics First transistors ussr

2 ensp 0183 ensp First transistors USSR Used Google translator The first serial transistors in the Soviet Union not including experienced КС КС 8 1953 were point contact p n p germanium transistors С 1 and С 2 1954 1960 Length of the body without pins 12 mm diameter 6 5 mm Lead Length 4


6 ensp 0183 ensp In the germanium transistor era the RF transistors were PNP small signal devices I have even seen such transistors in early solid state MW AM car radios and the popular Phillips 1960s electronics set had an AF116 Look for any transistor in the TO package for example it s a lead version of the TO with the extra lead

Vintage germanium transistor ss amp

ensp 0183 ensp As some of the adverisements mention field effect transistors in the tuners I suspect the amplifier was silicon not germanium Anything much more than 10W was very hard to achieve with 1960s germanium