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HP 12C 2015- model, PCB view
HP-12C keyboard overlay
Nonpareil
Titchener 1731 circuit board puller
Digital Group Z80 cpu card
Varian 620/L-100 circuit boards
Renesas ForgeFPGA
John Doran's custom Z80/M computer
copy stand and lighting
trivial CH32V307 stuff
QUIP socket
Prototype Apple /// SRAM memory board
cyclotron electromagnet
HP 9830/9866 printer connectors
Motorola MEX68KECB Educational Computer Board
Am9511A floating point board for Apple II
MC68030/MC68882 card for Apple II
Twiggy floppy
Elfo (RC2020/04 COSMAC ELF Project)
Altair 8800b S-100 boards
Genaille–Lucas rulers by Armstrong Metalcrafts
Lineman set
Intel Multibus floppy controller
Erem 622N diagonal cutters and 2411PD needle nose pliers
Richard Ottosen's 68008 card for Apple II
RC2019/10
order
RC2014 kits
MS-DOS 6.22
Weird Al wristwatches
Retrochallenge 201804: Apple ///
Video buffer for COSMAC Elf (CDP1861 PIXIE graphics)
RetroChallenge RC2017/10
gnuradio with ADALM-PLUTO SDR
QRP Labs Dummy Load
Motorola MC68012
Mostek MK68000 engineering sample, 1981
Data Check 5045 (HP 1345A) digital vector display
New storage for electronic component inventory
six-digit hexadecimal LED display
PV-Tronics BlueBoard Pro
COSMAC ELF switch panel, rev 2
Philbrick K2-XA Operational Amplifier
Aesthetics test, 31 mil perf board over normal PCB
CDP1861 PIXIE graphics chip replacement (rev 0)
COSMAC ELF switch panel
PIC16C84 in ceramic DIP
board with Intel 4040
EPROM programmer adapter for HHC capsules
water heater
CP2161
Reading Western Digital Microcode ROMs from Pascal Microengine and DEC LSI-11
Motorola pre-qual DSP56001 in SLAM package
Four-phase non-overlapping clock generator using PIC16F1575
USB/Network floppy disk controller
MDS-FD-ADAPTER
WD900-FD-ADAPTER
DIY3 calculator in 3D-printed case
DIY5 calculator running Free42
DIY4X calculator running Free42
Early DIY RPN calculators
Intel 43201 microcode ROM dump
RC2015/07
Sony Vaio VPCEB-17FX USB/audio board
Bubble memory card for DEC Q-bus
Bubble memory card for IBM PC
Texas Intruments bubble memory
National Semiconductor PACE 16-bit microprocessor and support components
Bubble memory card for Apple II
RCA CDP1801 COSMAC board
Netronics ELF II incorrect video buffer
5 MHz quadrature clock
Zilog Z8-02 MPD
Intel Series II MDS-220
PSE Pacer 16-bit microcomputer
Drilling out heat stakes
HP 19B Calculator
65CE02 decimal subtract test in Apple IIe
Intel iSBC 432/100
Tellabs 4201 2-wire to 4-wire hybrid
Western Digital Pascal MICROENGINE
tantalum capacitor failure
Quay 900
EduCALC
Sol-20 personality modules
Sol-20 computers
DIY4X powered from USB, Jan 2012
DIY4X using new display adapter Jan 2012
DIY4X new display adapter, Jan 2012
DIY4X Sept 2011
DIY4 graphic display evaluation adapter Aug 2011
DIY4 Jul 2011
Calculator WIP 2010
NASA KSC
FPGA-Elf
Saipan
