These are mostly articles I didn't want to keep in paper form any more, so I scanned them and stuck them here so I could find them again.

Amateur Radio

• Motorola TLN8482A Ground Reversing kit -- I have three or four of these.
• Phase locked VFO for VHF by Tim Forrester from EWW July 1989. Outdated, but good if you want to know how PLLs work.
• Microwaves with a mustard tin -- 3.4 GHz.
• Servitek documentation.
• Spy Transmitters
• The documentation that came with my SAATI GLB packet modem, back when I was still ZR1ACG.
• SM0VPO on rewinding IF transformers.
• SM0VPO's Self Tuning CW Filter.
• SM0VPO's FM Transmitter.
• SM0VPO's 2 Valve Transmitter.
• SM0VPO's LM317 Transmitter.
• SM0VPO's 250mW Transmitter.
• SM0VPO's bug.
• A Two Terminal Test Oscillator for inductance measurement.
• LED Expanded Voltmeter, 73, May 1992.
• Dynamic Component Analyzer, 73, May 1992.

Antennas

• 2m VSWR Bridge
• 28 MHz Slim Jim
• Open Wire feedline construction
• Antenna Bridge from CQ, January 1984
• 2m beam
• Homebrew tilt-over tower
• Hustler 4-BTV Installation Instructions.
• Log Periodic Dipole Array, 73, May 1992.
• 2m portable Quad
• 5/8 for your HT
• ZL Special 2m antenna
• RF Bridge from Radio ZS July 1988
• Two Metre Transmatch

73 Magazine projects

• Parabolic Antenna
• Parabolic Antenna 2
• Supernova Station Organiser
• Talking ID
• 20W 2m Linear -- MRF238
• 6SN7 Regen
• Transistorise a vacuum tube receiver
• Fun-ceiver
• Fun-amp
• RF Signal Generator
• Fractional Frequency Oscillator -- PLL, sort of
• Transmatch
• 6146B 2m 60W linear

CQ Magazine projects

• Six band HF vertical
• Antenna bridge
• Mini KW Antenna Tuner
• Twofer transmitter
• Two 30m transmitters
• A 30 Meter Transceiver by KI6BP from CQ, June 1996.
• 2m beam

Elektor projects

• 2m transmiter
• 45 Mhz crystal filter using CB crystals, Elektor July/August 1983.
• 5 - 70MHz SWR meter
• NE602 primer
• 2m preamp
• Signal Strength Meter
• Crystal Tester

QST projects

• Portable 2m repeater
• 6m Transmitter, 10W CW
• Audio Amplifier with AGC
• High Dynamic Range Receiver front end
• Audio Filter
• 50W linear (2 x MRF449A)
• Double Duck Direction Finder
• Wire Line Microwave
• Cubic Inch transmitter
• Microphone Equalizer
• QRM Filter
• More Versatile Transmatch
• Lightweight Trap Antennas
• Crystal Filter Design
• Crystal Filter Design using a computer
• 6m Linear100W, MRF492
• Small 20m CW Transceiver
• VXO 30m transmitter
• 6m Linear, 300W, 4CCX250B
• Use stereo to filter signals
• CA3046 circuits
• Variable Notch Filter
• Optimizing Coax Traps

Radio ZS projects

• Chris Turner ZS6GM and Henri Ketelaars ZR6HK's HK02M 2 Metre Receiver Project from Radio ZS, April 1991.
• G5RV Homebrew by Bob Opperman, ZS1ABO.
• 40m QRP CW Transceiver by Roger Davis ZS5L
• Dual Purpose Battery Indicator, LM3909

Audio

• Sound Level Meter from EA, May 1981.
• Completely obsolete article on Improved CD Electronics, from E&WW, May 1990.
• Reducing Crossover Distortion in Class B amplifiers, E&WW, October 1990.
• I once built the All Solid State Preamp (part2).
• Remote Control for a Hi-Fi system.
• Full Logic SQ Decoder, February 1977 when "Quadraphonic" was the word of the day.
• A Home Made Hi-Fi Output Transformer from Practical Wireless, October 1962.
• A BASIC program to design air cored inductors.
• High Power AF Amplifier -- EE May 1986.

Car stuff

Electronic Fuel Injection

Note: these come with a distinct VW Type IV bias.

• Electronic Fuel Injection Systems -- Bosch Manifold Pressure Control (MAP).
• Bosch 1984 FI Products.
• Dune Buggies & Hot VWs -- Fuel Injection Basics.
• Dune Buggies & Hot VWs -- Fixen Der Einspritzer.
• John Gwynne's 82C54 Tachometer.

• Notes on handling and suspension.
• How to correctly pick and use nuts and bolts.

Computing

Motorola Application Notes

• AN-437 : Using the MC68332 Periodic Interrupt Timer.
• AN-819 : Prioritized Individually Vectored Interrupts for Multiple Peripheral Systems with the MC68000.
• AN-961 : Interfacing the MPX2000 Series Silicon Pressure Sensors.
• AN-1012 : A Discussion of Interrupts for the MC68000.
• AN-1025 : MC68020 Minimum System Configuration.

• Intel SDK-51 MCS-51 System Design Kit Assembly Manual 121589-001 Rev 01 May 1981.
• Modulator for Commodore 64 schematic.
• BELTEL Terminal Specification (PRESTEL) November 22, 1984.
• Information on the Carter Keyboards Model 756 I bought from Eagle Electronics.
• 6809 Exorset Main Controller Schematic.
• Z80 Printer Buffer (Stand-alone computer) from Byte, June 1984.
• The Rusie was an 8085 based computer developed at the University of Stellenbosch slightly before my time. I got partial copies of the schematic to learn more about how computers are put together.
• RS 5409 datasheet for the WD 2797 FDC.
• RS 6985 datasheet : RS-232 line drivers.
• Notes on a Z-80 FDC controller I photocopied from someone a long time ago.
• A Disk Operating System for FORTH.

EPROM programmers

AMS Universal Prom Programmer

EXPRO-60, EXPRO-80

Leaflets for PC cards

Camping, road trips, etc

• Back in 1995, Tobin T Copley toured the USA in his VW 1976 Westy. I found my paper copy and scanned it because Google couldn't find it, but once I had the exact date and subject line I did find it on the Vanagon archive. But FWIW here's the PDF.
• The Gondwana Project had an awesome packing list.

Directory listing of everything