P3 Orion Top Secret
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  • PICTURES CP-823/U (Univac 1830)
    • Memory Protect Adapter
    • Processor CP-823/U Prototype MOD3
    • Control Console CP-823/U Prototype MOD3
    • Power Supply CP-823/U Prototype MOD3
    • Memory CP-823/U Prototype MOD3
    • Airborne I/O CP-823/U Prototype MOD3
    • Ground I/O CP-823/U Prototype MOD3
    • Documentation CP-823/U Prototype MOD3
    • Cables CP-823/U Prototype MOD3
  • Technical Documents
    • Central Processor Operation
    • Central Processor to Memory
    • Interface Central Processor & Air I/O
    • 1830 Ground I/O Unit
    • DRO Bootstrap & Service Library
    • Bootstrap Routine & Utility
    • 1830 Instruction Repertoire
    • Combined Power Supply
    • Acceptance Procecures CP-823/U 1965
    • Switch, Amplifier, Strobe Generator
    • + 3 Volt Airborne I/O Interface
    • Air I/O Modification Indicators
    • Electronic Switch Parts List
    • Logic Symbols Central Processor
    • Current Regulator Parts List
  • Project A-NEW P3 Orion
    • Scope P3 Orion
    • Project A-NEW Overview
    • Project A-NEW MOD0
    • Project A-NEW MOD1
    • Mod 1 from the eyes of a 1500 Hour Civilian Field Service Engineer.
    • Project A-NEW MOD2
    • Project A-NEW MOD3
    • Multipurpose Display Interface A-NEW MOD3 P3 Orion
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  • P-3 Orion Univac 1830 (CP-823/U) PC Cards and Chips
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  • Monolithic Integrated Circuits
  • Friden Flexowriter Input/Output Peripheral
  • WS279 MICROCHIP
  • WS280 MICROCHIP
  • WS283 MICROCHIP
  • NTDS (Naval Tactical data System) Roots
  • Cordwood Block Electronics
  • Office of Naval Research
  • Acceptance Procecures CP-823/U 1965

Friden Flexowriter SFD (Systems Flexowriter Double-case) is able to type/punch / read upper and lower case letters and characters in code. The Model SFD punches / reads 8-channel tape, which provides 256 possible code combinations. This model is equipped with an optional punch card reader (left front) and parity check to help prevent errors.
The Flexowriter will punch code in tape when typed and will type letters and characters read from punched tape code from either punch cards or a paper tape roll.
The Friden Flexowriter was one of the first and most important teletype peripherals, sending and receiving data from early computing systems as an Input/Output (I/O) unit.

Below are pictures before refurbishment and not working.

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