You can download the photos or .pdf's by right clicking on the title and selecting "save target link as"
Friden 1162 CRT based calculator. | Friden 1166 CRT based calculator. | Friden 132 CRT based calculator. |
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Sharp Compet 384P programmable calculator. | Close up of the Nixie display. | Close up of the printer and card reader/writer. |
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Olympia calculator, front view. Has 12 display tubes that swaps between two pages (24 digits). | Another Olympia ICR 412 calculator, front view. | Fuzzy photo ot the Nixie's. | Rear data plate. |
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Panasonic calculator, front view. Has 12 display tubes, one was broken. | Inside view showing plug-in circuit boards. | Boards removed showing backplane. | Display board, I removed the broken Nixie (a model CD88 tube if anyone has one to spare). |
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First logic board. Note the extensive use of bypass capacitors. | Second logic board. | Third board, has two round can IC's that mount through the board. | Back side of third board. |
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Victor 1400 CRT based calculator, front view. | Power supply board. Logic board is on the bottom, covered. | Small CRT board. | CRT Display showing characters. |
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Tektronix Model 31 Calculator. | Cover off. | Display circuit card. | Back panel. |
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Burroughs C3200 Nixie Calculator. | Canon 121 Nixie Calculator. |
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Monroe CR-2 punched / marked card reader. |
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Tektronix Model 4051E01 ROM Expander for the 4051 computer. | Two ROMs. | An RS-232 adapter plug-in module. |
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Unknown computer's front panels. Believed to come from a telephone company central office. | Rear view showing wiring. | Another front panel from the same system. | Rear view. | Connectors, look like IBM? |
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Unknown IBM computer panel. Possibly from an IBM series 700 system? | Rear view of panel. | From the button labels, it could be a tape controller. | ||||
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Another unknown computer panel. Possibly from an IBM system? |
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IBM System 360 model 30 control panel. Missing a button and switch. | IBM System 360 model 40 control panel. | IBM System 360 model 40 rear view. |
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Litton Perpheral Device Simulator panel. |
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Allen Bradley 3264 Minicomputer Panel. |
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Autonetics D37 Panel. | Side view. | Rear view showing connectors. |
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Singer Librascope Magnetic Disc Memory. | Singer Librascope Magnetic Disc Memory. | Cover removed showing the top circuit board. This unit was built in 1986. | Another view of the assembly showing it's layered construction. |
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Label says it's 8 blocks of 8376 bits each for a grand total of 8376 bytes per head. With 100 heads (50/side), assuming they are all used for data, that's about 818 KBytes total. | Backside of the top board showing cables. It's a two layer board. | Bottom board. Most chips on both boards have 1985 date codes but the gold ceramic ones are from 1974. | Back side of the bottom board, with blue ECO wires. |
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Both boards removed showing the top of the disk housing. | Close up of a fixed head connection board. | Head cover removed showing the top disk surface. | Here are 25 dual heads arranged as 5x5 with one extra (clock?) They are all messed up because I removed it upside down. It took 2 hours to get them all realigned again. |
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Here's a close-up of the heads. They are attached with very fine wires. | Here's the set of 25 dual heads on the bottom of the disk platter, all nicely alligned. The bottom has no extra head. | The bottom of the disk platter. The two sided disc is 1/4" thick. |
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Nuclear Data Corp. processor using transistors and core memory. | Nuclear Data Corp. tape reader/punch control for above. |
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Technical Measurement Corp. CAT 400C "Computer of Average Transients" - uses transistors and core memory. | Mnemotron CAT 400B - an eariler version. | Mnemotron CAT 400B - rear view. | Mnemotron CAT 400B - logic boards. | Mnemotron CAT 400B - memory logic boards. | Mnemotron CAT 400B - core memory. |
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Data I/O's first product, a PROM programmer with paper tape. | Close up of switches. | Rear view of Data I/O. |
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Calcomp 960 Plotter. | Close-up of control panel. | Base with drivers. |
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Calcomp 907 Plotter Controller. | Rear of controller. | Inside the controller. |
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If anyone knows what this Univac box was used with and what it does please email me.
It has a great panel full of
lights and switches! Many (100's) of small plug-in cards, some with flat-pack IC's.
Sperry Univac Military CV-2342B/UYK Buffer. | CV-2342B/UYK cover open. |
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Sperry Univac Military CV-2342B/UKY panel. | CV-2342B/UYK cards. |
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Here's a test set for the UKY-7(V) computer, another nice panel!.
Sperry Univac TS-2940(V)/UYK-7(V)Test Set. | Cover open. |
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Parabam digital clock w/Nixies. | Insides. | Back. |
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Parabam digital clock circuit board. | Back of circuit board. |
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Parabam digital clock, no display (fuzzy photo). | Circuit boards using the same technology as the display version. | Power Supply. | Switch Panel. |
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Logic Blocks on card. | Hand wired relay board. | Hand wired transistors, all in nice sockets. | Back side. |
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Austron Clock
Austron 1210D-01 Crystal Clock. | Austron Insides. |
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Astrodata Model 5400. | Rear panel. | Rear panel I/O jacks. | Inside view from top. | Counter board - no IC's used here, just transistors. |
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Front view. | Cover removed showing construction. | Close-up which shows some capacitors that are leaking (C207, C222 etc.) | Another View. |
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Instructions. | Close-up of a circuit card. | Rear Panel. |
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Front view. | Rear Panel. | Cover removed showing construction. | Instructions. |
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HP 105B Quartz Frequency Standard. | HP 103AR Quartz Frequency Standard. | HP 101ER Quartz Frequency Standard. | Beckman 905R WWV Receiver. | HP 5260a Frequency Divider. |
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Front view, it works!. | Rear Panel. | Cover removed showing construction. | Close-up of a circuit card. | Close-up of a display card. |
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Front view, it works!. | Inside view 1. | Inside view 2. |
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Front view, it's a 6 digit Nixie display. | Rear Panel, with computer interface and scale factor switches. |
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Computer Devices Inc. Miniterm terminal. | Back of terminal. |
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LSI ADM3A Dumb Terminal, complete with screen rot. | Cover open. | Display circuit card. |
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TEC Series 400 Data Screen, rack-mount terminal. | Another TEC Series 400 Data Screen, terminal. | Rear Panel. | Keyboard (not so clean). |
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Fabri-Tek Logi-Tran Four, Logic Trainer System. | Board with RTL IC's. |
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DIGIAC, Logic Trainer System. |
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Plessey DD11/80 Cartridge Disk Drive. |
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Hewlett Packard 9845A desktop computer. |
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HP 98041A Disk Interface for the 98x5 series calculator/computers. | Calculator side of the interface cable. | Internal Logic Board. | Rear Panel. |
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IBM 5110 Desktop Computer. | Another, dirty, IBM 5110 Desktop Computer. | IBM 5103 printer, used with the 5110. |
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IBM MAG CARD Selectric Typewriter. | MAG CARD Electronics. |
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HP 1351A Graphics Translator. | 1351A rear View. | HP 1311B X-Y display, used with 1351A. |
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Texas Instruments RS-232 analyzer, breakout box. |
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Analogic AP500 Floating Point Array Processor. | Rear Panel. | Inside view. | Card labels. |
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Tally P-150 High-speed Paper Tape Punch. | Rear View. | Top View. | Nameplate. |
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Data Specialties, Inc (DSI) Model NC2400 Paper Tape Reader/Punch. | Front Panel. | Rear Panel. |
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Wright Card Punch, model 2611. | Inside view. | Better inside view. |
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12 position step switch, I hope to make a clock out of some day. | 10 position step switch, also for the clock. | RTL based decade counter with Nixie readout. | Another IBM 5110 computer, very dirty. |
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Electro-mechanical 7-segment display. | Rear view of the electro-mechanical 7-segment display. | HP 5375A eyboard for the 5360A computing counter. |
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Honeywell Digital Voltmeter counter unit w/neat construction. | Counter modules (transistorized) and Nixie drivers. | Another view of the stacked modules showing construction. | Nixie's and a "1" indicator bulb. |
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Beckman 6230 EPUT Meter (Events Per Unit Time). | Rear View. | Counter Board, uses RTL logic. | Time Base Board. |
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RCA 6499 Radechron tube. This is a storage tube that was sometimes used to store digital information. | Data could be written and read out at different times and rates. | RCA 6499 Radechron tube. |
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Old Counter Board with Nixie Displays. | RIDL Counter Module with vertical column readout. | Six decade counter units. | All transistorized logic. | |
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Incandescent displays from a military test set. | RCA Numitron incandescent displays, should make a nice clock. | Back side of Numitron board showing driver chips. | Nixie voltmeter display assembly. | Individual Nixie module, interesting construction. Uses early TTL. |
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Seven segment display using individual lamps. | Rear view showing connections. Bulbs are flange based. | TEC LITE Nixie transistorized module. | TEC LITE Nixie module. |
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