AKA (Label): ELECTRONIC CALCULATOR, TYPE 60, Product number (P/N): 60,
Keywords/Tags: 60
Date of intro: ~25-jul-1973, Origin: Japan (List), Dimensions: 158x100x42mm, Weight: 286g,
Power: 6V: (AA x4) + Adaptor, Adaptor: OMRON_adaptors: AP60D; OMRON_adaptors: AP60E,
Display: Type = Display (VFD) (List), Brand = FUTABA: 6CT02, Digits = 6,
Number of keys: 16, #Key-Blue: 5, #Key-White: 11,
Keyboard Array (Rows x Columns): 04x04, Keyboard Layout: [7] [8] [9] [(Division)] - [4] [5] [6] [x] - [1] [2] [3] [-=] - [C] [0] [.] [+=],
Miscellaneous switch: [ON-OFF],
Classification: / Pocket,
Featuring: Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Related with: OMRON_docu: (Instr.) 60 (J); OMRON_docu: (Broch.) 60 (J); OMRON_parts: (Box) 60,
Components: 61 ... 9 Capacitor(s), 7 Diode(s), 36 Resistor(s), 5 Transistor(s), 3 IC(s),
Main Components: OMRON: HD32163P,
Other components: NEC: µPD110C {2x}; TDK: CT60C1,
Resemblance with: CITIZEN: Six; IWATINI & CO.: 60; MIIDA ELECTRONICS: 606; TRIUMPH-ADLER: 60 (version-1); TRIUMPH-ADLER: 60 (version-2),
Known Serial-numbers: 203078 | 203662 | 323765 | 326969 | 434641 (List of all S/Ns from OMRON)
Initial Cost Price: 12800 JPY (€ 103,68), Collector value: 8/10,
Info: DUDEK Emil:
The main board (60-34472B DEC) sits loose on the keyboard assembly (KBCSM-44001A KB PWB009) and is joined by an 11-way connector.
The keyboard assembly is fixed to the front with fours crews.
A small power connector board sits at right angles to the main board and is connected with a few logs and slots.
Construction:
Remove the battery unit.
Carefully squeeze in the sides of the rear section to pop the lugs running down the sides.
If in doubt do not do it as you may damage your calculator.
The rear section then lifts off.
Logic comments:
The [C]-key is used to clear the whole calculator as there is no cancel entry function.
Input overflow is not suppressed inputting a seventh digit causes the decimal point to disappear and the calculator to hook up – which is not recoverable.
Negative numbers are shown with a ‘-‘ in the far right (sixth) digit.
Seven digit negative numbers are allowed – you just cannot see the negative sign.
There is no constant on any function.
Divide by zero shows no display at all and is not recoverable.
Overflow shows the answer and hooks up and is recoverable.
Interestingly by pressing [C] you will then see the six most significant digits so internally it works to 12 digits precision.
You can carry on calculations with these digits.
It operates reverse polish notation.
To perform 9-5 you key in [9] [+=] [5] [-=] the display will show ‘4’
Multiply and divide are directly entered.
This calculator suffers the negative zero bug...
key in [1] [+=] [2] [-=] to give ‘-1’
Now key in [1] [+=] to give ‘-0’