germanium transistor 1960s

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Antique Radio Classified Vintage Transistor Radios

The Transistor s Early History From 1947 to the 1960s BY JACK WARD --Web Edition Jack Ward s carefully researched article reminds us that 1998 marks the 50 th anniversary of the first public announcement of the invention of the transistor, which the April 1992 Physics Today said, caused a revolution in technology and drastically altered society The addition of Ron Blackshear s ....

Analog Man Sun Face and Fuzz Face Page

High Gain Germanium transistors These are similar to the standard germanium USA transistors that we pulled out of NOS 1960s Baldwin organ tone generator boards, but they have very high gain for germanium They are Texas Instument brand and made in 1974 These and the GE 2N type are the shorter, fatter metal can style than the NKT and 2SB size...

Semiconductor Documents

The RCA Semiconductor Products brochure from 1960 contains detailed specifications on dozens of RCA silicon rectifiers, diodes, germanium transistors, and silicon transistors, together with dimensional outlines, an interchangeability directory and, most importantly, example circuits You ll find two-, four-, five-, and six- transistor radio ....

Transistor Museum Photogallery General Electric Historic ,

Historic Germanium Computer Transistors Research and Collecting Kit Page 1 GENERAL ELECTRIC , Shown at top are a series of 1950s and 1960s General Electric germanium transistors GE was one of the best known and most successful manufacturers of transistors during this...

UK Vintage Radio Repair and Restoration

Transistor Faults, Testing and Replacement , When testing NPN germanium transistors the polarity should be reversed for each test, then the results will be the same , This diagram shows the lead connections for the Mullard transistors most often encountered in British transistor radios made in the 1960s viewed from underneath ....

1961 Silicon Transistor Exceeds Germanium Speed The ,

1960 Milestone The 2N709 FT-1310 n-p-n device was introduced in July 1961 as the first silicon transistor to exceed germanium speed Each CDC 6600 used 600,000 transistors packaged in a unique cordwood-style module configuration to minimize connecting wire lengths...

John Eng s Dead Tech Rescue

Germanium Junction Transistors Mid 1950 s into the 1960 s Easier to make, reliable and allow transistors to be used in mass produced electronics Raytheon Transistors One of the earliest maker of mass produce transistors for commercial, industrial and military applications...

Vintage Technics, First transistors ussr

First transistors USSR Used Google translator The first serial transistors in the Soviet Union, not including experienced КС 1-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 65 mm Lead Length 4 ,...

What is the difference between a silicon and a germanium ,

A silicon transistor has threshold voltage of 07V while germanium has 03V Silicon has good temperature stability about 200 176 C, germanium has 85 176 C Leakage current of silicon is in nA while for germanium it s in mA PIV of Si is more compared to Ge Ge can detect small changes in signals hence they are more sensitive...

Transistor Radios, Radios, Radio, Phonograph, TV, Phone ,

Transistor Radios, Radios, Radio, Phonograph, TV, Phone, Collectibl Shop the Largest Selection, Click to See Search eBay faster with PicClick Money Back Guarantee ensures YOU receive the item you ordered or get your money back...

Vintage Transistor Radios Collectors Weekly

The transistor was invented in 1947 at Bell Labs in New Jersey In 1954, Texas Instruments of Dallas teamed up with Regency Electronics its original name was Industrial Development Engineering Associates, or IDEA of Indianapolis to manufacture the first pocket-size transistor radio...

Ge transistor radio Etsy

1960s GE Transistor Radio AM Only Original Box Paperwork Earphone Vintage Radio Vintage Transistor Radio kinseysue 5 out of 5 stars 1,864 5350 Favorite , Transistor Radio/General Electric Transistor Radio/2 band Radio Receiver/GE AM/FM Radio/VintagePocket Radio/Emergency Radio/Retro Radio HappyTrailsVintageCo 5 out of 5 stars ....

Newmarket Transistors

Newmarket Transistors Ltd, usually referred to as NKT, and located in the Suffolk town famous for its race courses, was one of the more idiosyncratic, and therefore interesting, small UK manufacturers of germanium transistors in the 1950 s and 1960 s...

Transistor radio Etsy

1961 General Electric Deluxe 7 Transistor Radio, Model P-9001, In Working Condition , Vintage 1960s Sylvania TR25 Eight Transistor Radio, For Restore Or Decor CaribooCollectibl 5 out of 5 stars , Two 1960 SONY TR-84 Portable 8 Transistor Radios, In Working Condition...

Vintage germanium transistor ss amp

Mar 10, 2015 0183 32 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...

Bipolar junction transistor

Germanium transistors The germanium transistor was more common in the 1950s and 1960s, and while it exhibits a lower cut-off voltage, typically around 02 V, making it more suitable for some applications, it also has a greater tendency to exhibit thermal runaway Early manufacturing techniques...

Hartman Vintage Germanium Fuzz Effects Database

Hartman Vintage Germanium Fuzz Hartman » fuzz pedal » Hartman about the NKT275 version 2007 A very musical sounding and faithful clone of the original Dallas Arbiter Fuzz Face circuit using genuine NOS new old-stock Newmarket NKT275 PNP Germanium transistor the same as those used in the originals during the 1960s plus modern amenities true-bypass, on/off LED, and 9VDC-in jack...

UK Vintage Radio Repair and Restoration

Transistors - Six Transistors Date - Late 1960s ? Status - In my collection This is another eBay purchase, costing under £10 It is complete in original box, with earphone The radio is fairly dirty and the Philips name is partly worn off , Fortunately, I have a small stock of these early germanium transistors from scrap sets, and the set ....

Big Muff Pi with Germanium Transistors?

May 30, 2012 0183 32 You were lucky to get two good Ge out of a lot of ten And the good ones left were notorious for reverse voltage breakdown which put them into thermal runaway and ultimate failure The few 1960s power amplifiers that used Ge power transistors fared poorly Vox T-60, Fender Zodiac amps, Rhodes silvertop suitcase power amp...

1960s ge transistor radio eBay

Find great deals on eBay for 1960s ge transistor radio Shop with confidence...

What is the difference between a silicon and a germanium ,

A silicon transistor has threshold voltage of 07V while germanium has 03V Silicon has good temperature stability about 200 176 C, germanium has 85 176 C Leakage current of silicon is in nA while for germanium it s in mA PIV of Si is more compared to Ge ....

Evolution of Transistors

Gordon Teal built the first silicon transistor, which worked just like a germanium junction transistor 1960s The next big jump in transistor evolution came with the field-effect transistor...

Mullard OC170 germanium PNP alloy junction transistor ,

A OC170 germanium PNP alloy junction transistor in TO1 metal case These were a common transistor in the 1960s for RF and IF stag This package is noted for a ,...

Focusing on the design of pocket transistor radios ,

Focusing on the design of pocket transistor radios manufactured during the 1950 s 1960 s - ROCKET RADIO MG-306 - Focusing on the design and history of pocket transistor radios manufactured between 1954 and 1965 A portable revolution in your shirt pocket , This Miniman Rocket Radio uses a germanium diode to convert radio waves into sound ....

Vintage and obsolete Specialty Electronics Components

UNMARKED PNP Germanium Transistor, for Audio applications, Potentioally great for vintage guitar pedals Type unknown, metal can, removed form a piece of ,...

Timeline The Silicon Engine Computer History Museum

Timeline Pre-1940s 1833 First Semiconductor Effect is Recorded , 1960 Epitaxial Deposition Process Enhances Transistor Performance Development of thin-film crystal-growth process leads to transistors with high switching speeds , Silicon Transistor Exceeds Germanium Speed...

East German DDR Vintage Semiconductors

WF specialised in manufacturing diodes, whereas WBN made transistors Later, another organisation, the Röhrenwerk Anna Seghers Neuhaus aR, named after a famous German woman writer abbreviated as RWN, made germanium power transistors, some of which I show below...

3M Germanium Transistor part numbers

Is anyone familiar with the part number markings of 3M branded Germanium transistors? I cannot find a cross reference for the part number printed on these output transistors from the 1960s...

Transistor radio

A transistor radio is a small portable radio receiver that uses transistor-based circuitry Following their development in 1954 , made possible by the invention of the transistor in 1947 , they became the most popular electronic communication device in history, with billions 1 manufactured during the 1960s ,...

HISTORY OF GERMANIUM TRANSISTORS

General Electric was an industry leader in germanium technology throughout the 1950s The first GE junction transistors were introduced in late 1953 PNP alloy junction devices, labeled as 2N43/44/45...