Manufacturer: RICOH
Model: Ricomac 1216
AKA: 7550-32
Year: 1974
Display: VCF-tubes (12)
Circuits: See further on this page
Dimensions: 154x203x76 mm
Power type: 220V
Origin: Japan
S/N: 32233
Owner: DEVIDTS Serge
Info:  


smd12782.jpg (9835 bytes)    smd12786.jpg (3961 bytes)

Display ^

 

 

smd12783.jpg (52071 bytes)

Internals ^

 

 

smd12784.jpg (51005 bytes)

IC-layout: ^

1+2+4+9: 
3: 
5+6+8: 
7: 

  TOSHIBA: TM4352P
 HITACHI: 3256P
 HITACHI: HD3233P
 HITACHI: HD3574 

 

 

smd12780.jpg (7905 bytes) smd12781.jpg (8533 bytes)

Specifc keys: ^
[double arrow] key: Remembers the last input-argument:
e.g.: 50 [*] 6 [=]     300
then: push the [double arrow] and [+] and you'll get: 306
[(-)] key: Converts number into negative number
e.g.: 6 [(-)]  [=]     -6

 

 

smd12785.jpg (20238 bytes)

Label: bottom ^