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Friden 1112 (Hitachi ELCA 12)
General
Friden 1112 Calculator (opens in new tab) 
Friden 1112 Calculator (opens in new tab) 
Friden 1112 Calculator (opens in new tab) 
Display and Keyboard (opens in new tab) 
Hitachi logo on keyboard (opens in new tab)
Friden 1112 Calculator
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Friden 1112 Calculator
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Friden 1112 Calculator
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Friden 1112 Calculator Display and Keyboard
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Friden 1112 Calculator Hitachi logo on keyboard
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❯Construction
Internals, LHS (opens in new tab) 
Internals, RHS (opens in new tab) 
Internal Layout (opens in new tab) 
Card Cage - Discrete transistors and Nixies (opens in new tab) Card Cage - Discrete transistors and Nixies (opens in new tab)
Backplane Wiring (opens in new tab)
Friden 1112 Calculator Internals, LHS
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Friden 1112 Calculator Internals, RHS
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Friden 1112 Calculator Internal Layout
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Friden 1112 Calculator Card Cage - Discrete transistors and Nixies
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Friden 1112 Calculator Backplane Wiring
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❯Circuit Boards
PCB01 components (opens in new tab) 
PCB01 solder (opens in new tab) 
PCB02 components (opens in new tab) 
PCB02 solder (opens in new tab) 
PCB03 components (opens in new tab) 
PCB03 solder (opens in new tab) 
PCB04 components (opens in new tab) 
PCB04 solder (opens in new tab) 
PCB05 components (opens in new tab) 
PCB05 solder (opens in new tab) 
PCB06 components (opens in new tab) 
PCB06 solder (opens in new tab) 
PCB07 components (opens in new tab) 
PCB07 solder (opens in new tab) 
PCB08 components (opens in new tab) 
PCB08 solder (opens in new tab) 
PCB09 components (opens in new tab) 
PCB09 solder (opens in new tab) 
PCB10 components (opens in new tab) 
PCB10 solder (opens in new tab) 
PCB11 components (opens in new tab) 
PCB11 solder (opens in new tab) 
PCB12 components (opens in new tab) 
PCB12 solder (opens in new tab) 
PCB13 components (opens in new tab) 
PCB13 solder (opens in new tab) 
PCB14 components (opens in new tab) 
PCB14 solder (opens in new tab) 
PCB15 components (opens in new tab) 
PCB15 solder (opens in new tab)
Friden 1112 / Hitachi ELCA 12 PCB01 components
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Friden 1112 / Hitachi ELCA 12 PCB01 solder
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Friden 1112 / Hitachi ELCA 12 PCB02 components
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Friden 1112 / Hitachi ELCA 12 PCB02 solder
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Friden 1112 / Hitachi ELCA 12 PCB03 components
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Friden 1112 / Hitachi ELCA 12 PCB03 solder
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Friden 1112 / Hitachi ELCA 12 PCB04 components
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Friden 1112 / Hitachi ELCA 12 PCB04 solder
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Friden 1112 / Hitachi ELCA 12 PCB05 components
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Friden 1112 / Hitachi ELCA 12 PCB05 solder
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Friden 1112 / Hitachi ELCA 12 PCB06 components
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Friden 1112 / Hitachi ELCA 12 PCB06 solder
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Friden 1112 / Hitachi ELCA 12 PCB07 components
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Friden 1112 / Hitachi ELCA 12 PCB07 solder
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Friden 1112 / Hitachi ELCA 12 PCB08 components
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Friden 1112 / Hitachi ELCA 12 PCB08 solder
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Friden 1112 / Hitachi ELCA 12 PCB09 components
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Friden 1112 / Hitachi ELCA 12 PCB09 solder
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Friden 1112 / Hitachi ELCA 12 PCB10 components
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Friden 1112 / Hitachi ELCA 12 PCB10 solder
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Friden 1112 / Hitachi ELCA 12 PCB11 components
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Friden 1112 / Hitachi ELCA 12 PCB11 solder
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Friden 1112 / Hitachi ELCA 12 PCB12 components
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Friden 1112 / Hitachi ELCA 12 PCB12 solder
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Friden 1112 / Hitachi ELCA 12 PCB13 components
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Friden 1112 / Hitachi ELCA 12 PCB13 solder
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Friden 1112 / Hitachi ELCA 12 PCB14 components
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Friden 1112 / Hitachi ELCA 12 PCB14 solder
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Friden 1112 / Hitachi ELCA 12 PCB15 components
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Friden 1112 / Hitachi ELCA 12 PCB15 solder
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