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121.

Inside a 20-Watt Traveling Wave Tube Amplifier from Apollo

5 years ago

145 points

122.

Reverse engineering the Intel 386 processor's register cell

3 years ago

145 points

123.

Repairing a 1960s mainframe: Fixing the IBM 1401's core memory and power supply

8 years ago

145 points

124.

A one-bit processor explained: reverse-engineering the vintage MC14500B

5 years ago

144 points

125.

Bitcoin mining the hard way: the algorithms, protocols, and bytes

12 years ago

144 points

126.

Reverse-engineering the conditional jump circuitry in the 8086 processor

3 years ago

143 points

127.

How the Z80's registers are implemented

12 years ago

142 points

128.

Yamaha DX7 reverse-engineering, part III: Inside the log-sine ROM

5 years ago

142 points

129.

How Hacker News ranking really works: scoring, controversy, and penalties

13 years ago

142 points

130.

Inside a Ferroelectric RAM Chip

2 years ago

141 points

131.

The stack circuitry of the Intel 8087 floating point chip, reverse-engineered

6 months ago

141 points

132.

Repairing the card reader for a 1960s mainframe: cams, relays and a clutch

8 years ago

140 points

133.

The adder at the heart of Intel's 8087 floating-point chip

9 days ago

139 points

134.

Fixing the Ethernet Board from a Vintage Xerox Alto

9 years ago

138 points

135.

An 8-tube module from a 1954 IBM 705 mainframe: it's a key debouncer

8 years ago

137 points

136.

Reverse-engineering a vintage power supply chip from die photos

5 years ago

137 points

137.

Why the Z-80's data pins are scrambled

12 years ago

137 points

138.

Bitcoin mining the hard way: the algorithms, protocols, and bytes (2014)

9 years ago

137 points

139.

Bitcoin transaction malleability: looking at the bytes

12 years ago

136 points

140.

A look inside the chips that powered the landmark Polaroid SX-70 instant camera

4 years ago

136 points

141.

Teardown of a quartz crystal oscillator and the tiny IC inside

5 years ago

136 points

142.

Tracing the roots of the 8086 instruction set to the Datapoint 2200 minicomputer

3 years ago

135 points

143.

Reverse engineering the 76477 “Space Invaders” sound chip from die photos (2017)

6 years ago

134 points

144.

Inside the HP Nanoprocessor

6 years ago

133 points

145.

Microcode inside the Intel 8087 floating-point chip: register exchange

23 days ago

133 points

146.

The Intel 386 processor die: the clock circuit

3 years ago

133 points

147.

Inside an IBM/Motorola mainframe controller chip from 1981

2 years ago

131 points

148.

Glowing mercury thyratrons: inside a 1940s Teletype switching power supply

8 years ago

131 points

149.

The digital ranging system that measured the distance to the Apollo spacecraft

4 years ago

131 points

150.

How I added 6 characters to Unicode (and you can too)

10 years ago

129 points