Manufacturer: GENERAL CORPORATION
Model: 1611
AKA: TEKNIKA 1611 ELECTRONIC CALCULATOR
Year: 1972
Display: VCF-tubes (16+1)
Circuits: (See on this page)
Dimensions: 250x230x80 mm
Power type: 220V
Origin: Japan
S/N: 1888
Owner: DEVIDTS Serge
Info: Four function calculator with
memory and decimal-slider.
Adding to memory is done by pressing the [=]-key after the desired value is displayed. Recalling the buffered memory can be achieved via de 'RM'-position of the leftupper Slider.

 

Large, illuminating display ^

17th tube showing 'Overflow' and 'Memory'-indication ^

Internals: display-module ^
Two IC's on the PCB, NEC: µPD124C

 

Internals: keyboard-module ^

Internals: keyboard-module (back) ^

Internals: PCB ^
Not a single calculator-chip, but an ELECTRONIC ARRAYS (FDY) chipset:

1+2+3: 
4+5: 
6: 
7: 
8: 
9: 

  TOSHIBA: TM4352P
 FDY 150B-5005
 FDY 320B-7002
 FDY 290B-7000
 FDY 300B-7003
 FDY 310B-7014


Labels ^

Protection ^