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First point-contact transistor invention

Walter Brattain and John Bardeen demonstrate the first successful point-contact transistor to their colleagues at Bell Labs, proving the transistor effect and marking a pivotal moment in electronics.

Setting

Bell Labs research laboratory in Murray Hill, New Jersey, a mid-20th century scientific facility with workbenches, testing equipment, and chalkboards filled with equations

Characters

The figures in this scene as an entity network — co-presence links everyone in the moment; speakers who trade lines are bound tighter. Turn the resolution dial to reveal depth the engine actually computed.

TNGF
SELECTED
Walter Brattain
primary
A middle-aged physicist in his late 40s, with a lean build and sharp features. His hair is neatly combed, and he wears round spectacles that magnify his intense, focused eyes. His hands are steady, showing the precision of a seasoned experimenter.
John Bardeen
primary
A slender man in his late 30s with thinning dark hair combed neatly back, wearing round wire-framed glasses that magnify his intense blue eyes. His face shows the wear of long hours in the lab, with faint lines around his eyes and mouth.
Senior Physicist
secondary
A middle-aged man with thinning gray hair combed neatly back, sharp blue eyes behind round wire-frame glasses, and a lean build indicative of long hours spent in the laboratory. His face bears the faint lines of deep concentration and habitual skepticism.
Lab Assistant
secondary
A young man in his early 20s, slight of build with short, neatly combed brown hair. His face is clean-shaven, and his hands move with practiced precision. He wears round, wire-framed glasses that occasionally slip down his nose as he works.

Dialog

Walter Brattain Now watch closely—when I apply this voltage, you'll see current amplification right here on the oscilloscope.
John Bardeen The key is the minority carrier injection at these point contacts—it's demonstrating exactly what our surface state theory predicted.
Senior Physicist If I understand correctly, you're claiming this solid-state device can replace vacuum tubes entirely? That would seem... rather ambitious.
Walter Brattain Ambitious, yes—but look at that clean waveform! No warm-up time, no fragile glass envelope, just pure semiconductor physics at work.
John Bardeen The implications go far beyond replacement—imagine entire circuits miniaturized, operating at speeds vacuum tubes could never achieve.
Senior Physicist Your results are... intriguing. But I'd want to see the noise characteristics and long-term stability before—
Walter Brattain There! Did you see that? Clean amplification at 10 megacycles—vacuum tubes can't touch this!

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Causal neighbors · 343 linked moments

F
First point-contact transistor demonstrated
1947 · contemporaneous
I
Invention of the Transistor
1947 · contemporaneous
I
Invention of the Point-Contact Transistor
1947 · contemporaneous
I
Invention of the Transistor
1947 · contemporaneous
I
Invention of the Point-Contact Transistor
1947 · contemporaneous
I
Invention of the transistor
1947 · contemporaneous
I
Invention of the Transistor
1947 · contemporaneous
Invention of the Transistor
Invention of the Transistor
1947 · contemporaneous
I
Invention of the point-contact transistor
1947 · contemporaneous
C
Completion of TRADIC, the First Transistor Computer
1954 · same location
P
Publication of Claude Shannon's 'A Mathematical Theory of Communication'
1948 · same location
I
Invention of the Point-Contact Transistor
1947 · same location
I
Invention of the Junction Transistor
1948 · same location
I
Invention of the Transistor
1947 · same location
I
Invention of the transistor
1947 · same location
M
MOSFET invention
1959 · same location
D
Dawon Kahng and Martin Atalla present the MOSFET
1960 · same location
I
Invention of the Transistor
1947 · same location
Invention of the Transistor
Invention of the Transistor
1947 · same location
F
First point-contact transistor demonstrated
1947 · contemporaneous
I
Invention of the Transistor
1947 · contemporaneous
I
Invention of the Point-Contact Transistor
1947 · contemporaneous
I
Invention of the Transistor
1947 · contemporaneous
I
Invention of the Point-Contact Transistor
1947 · contemporaneous
I
Invention of the transistor
1947 · contemporaneous
I
Invention of the Transistor
1947 · contemporaneous
Invention of the Transistor
Invention of the Transistor
1947 · contemporaneous
I
Invention of the point-contact transistor
1947 · contemporaneous
Dartmouth Summer Research Project on Artificial Intelligence
Dartmouth Summer Research Project on Artificial Intelligence
1956 · same era
F
First Silicon Transistor Demonstration
1954 · same era
C
Completion of TRADIC, the First Transistor Computer
1954 · same era
P
Proposal for the Dartmouth Summer Research Project on Artificial Intelligence
1955 · same era
I
Invention of the Perceptron
1957 · same era
P
Publication of Claude Shannon's 'A Mathematical Theory of Communication'
1948 · same era
H
Harvard Mark I Operational
1944 · same era
E
ENIAC First Program Run
1945 · same era