Model 
Serial Number 
Notes 
121A 

ACpowered fourfunction desktop 12digit Nixie
adjustable sliding decimal points 
121B 
A 205205 
ACpowered desktop 12digit Nixie
four function plus total
adjustable sliding decimal points 
121E 
B 705409 
ACpowered desktop 12digit vacuumflourescent
four function plus memory, percent, total and square root
adjustable decimal point 
121L 
B 723684 
ACpowered desktop 12digit vacuumflourescent
four function plus memory, percent and total
adjustable decimal point 
122F 
2118339 
ACpowered desktop 12digit vacuumflourescent
with percent, square root, reciprocal, accumulator and item counter,
division with remainder, standard deviation,
fractional and time calculations.
With instruction manual and vinyl cover 
803MR 
2114782 
large LED with memory, percent, and square root 
805MR 
7416908 
large bluegreen vacuumflourescent with memory, percent, and square root 
8E 
198612 
early eightdigit red LED with constant switch
have manual (indicates purchase date of 20 December 1973)
and AC adapter model AD4145 (DC 4.5v center negative) 
AL8S 

with case 
AQ1400 

LCD calculator/clock/alarm in foldopen wallet
I need a manual for this one. 
AS8D 
707964 / Q 86857 
desktop four function blue flourescent 
AS8E 
Q 116574 
desktop four function blue flourescent 
ASL 
B 708624 
desktop 12digit nixie tube fourfunction plus memory 
AZ45F 


CM100 

Computer Math calculator
In box with instruction booklet 

CQ1 
1744841 1767833 1954665 5061151 5785035 
Combination clock/timer/alarm/calculator with a blue/green vacuumflourescent display
Uses AC adapter LR 21061 (1.4 VDC)
I have five of these neat early clock/calculators,
three black, one white and one red (Japanese instruction label)
One of them (1767833) is missing both battery covers and another
is missing the inner cover, so if anyone
has a unit they wouldn't mind parting with,
please
let me know.
You can download the instruction manual (in PDF) by clicking
here (thanks to Kathrine Wasserman for
the manual scan ). 

CQ81 
??? 4054184 4127862 
Combination clock/alarm/calculator, eight digit LCD 
fx1 
206866 
very early Nixie tube desktop scientific 
fx10 
??? 2193419 8108737 
scientific
one with a zippered case 
fx11 
2178375 27005286 
scientific 
fx120 
4574993 
scientific
with AC adapter 33128B (4.5 VDC 300 ma, outside sleeve positive) 
fx19 
2206078 3769094 
LED scientific
one with case, instructions and AC adapter 
fx101 
2363361 
scientific 
FX20 
3132426 9031178 
Scientific (one with case) 
FX21 
4117824 
Scientific (with case) 
FX250HC 

(new, sealed in box) 
fx31 
0100603 
VFD scientific
with case and instruction booklet 
FX310 

LCD scientific 
FX39 

early LED scientific 
FX451M 

solarpowered flipopen LCD scientific 
FX5000F 


fx550 

ten digit LCD scientific
with case and operation manual 
fx7 

scientific LCD
I have two of these, both with battery covers stamped 3D708A 
FX702P 

Programmable calculator
I have two of these, one with case and manual 
FX7000G 

scientific graphing 
FX7500G 

foldopen LCD scientific graphing 
fx82B 

LCD scientific, auto power off 
FX82C 

LCD scientific, auto power off 
FX85N 

LCD scientific, solar powered, auto power off 
FX880P 

Personal Computer 
H1 
1K111A 
eight digit blue electroflourescent LED with percent, square root
and memory.
with case and operation manual 
H801 
(4362163) 4368648 4373008 5254817 
Biolator biorhythm calculator each with case and instruction booklet
This calculator is not Y2K compliant. 
HL807 
0C104A 
Early LCD fourfunction plus memory and percent
(I have two of these) 
HL809 

Early LCD fourfunction plus memory and percent
uses NEC D1871C chip
with original box 
HL811 

LCD in original box 
HQ31 

LCD calculator/clock/calendar/alarm
with case and instruction booklet 
HR10 
1S103A 
LCD printing calculator 
HS8G 

LCD solar with memory, percent and square root 
JL20 

larger handheld LCD with memory, percent and square root
also has adjustable decimal switches 
JS8 


LC796 

"mini card" LCD calculator with memory, percent and square root
with folding case, instructions and box
has "RCA Records" and Nipper imprint on case 
Memory 81 
4558729 4655178 4655595 
blue fluorescent fourfunction plus memory,
percent and square root.
two with cases, one is missing a battery cover 
memory 8A 
0252134 
blue fluorescent with memory, percent, square root
with case and original box 
memory 8F 
4528282 4564445 
blue fluorescent with memory, percent and square root 
memory 8R 
4006438 4419672 4725181 4973991
4974471 7024772 
blue fluorescent fourfunction with memory and percent
one is missing the battery door 
memory A1 
0154692 0022454 0622709 
blue fluorescent fourfunction with memory, percent and square root 
memory B1 
0617691 
blue fluorescent fourfunction with memory, percent and square root
with case 
Mini CM605 

with case and a Japanese manual 
Melody80 

musical LCD calculator/clock/alarm/stopwatch
in foldopen case 
Mini Memory 
1046348 

ML860 

LCD musical calculator 
MQ1 
0164504 
LCD combined clock/calculator 

MQ11B 
0131968 
Card Watch micro computer quartz
LCD combined clock/alarm/calculator
with wallet case and Operation Manual 
MQ1200 

eightdigit LCD combined clock/calculator/alarm 

MQ2 
2266542 3160191 3298636 3322046 
LCD combined clock/calculator
all have cases, one also has original box and instruction booklet 
MQ5 

LCD combined clock/calculator/alarm/timer 
PB300 

BASIC programmable "Personal Computer" and calculator
with case 
Personal I 
4088557 
six digit display, with case 
personalI 
4088557 
eight digit vacuumflourescent display with square root and percent 
personal mini 
0048720 0202018 0341146 0409776
4106467 4267024 4420825 
six digit display, with case 
Personal M1 
0E106A 4242615 4243074 
fluorescent fourfunction with memory, percent and square root
one with box, instruction sheet and warranty card
one with boxed Casio AC adapter 22000 
Personalmini 
4078990 6434762 
each with case and box, one instruction booklet 
pocket mini 
0132715 21053481 
red LED fourfunction with square root 
PW60 

Eightdigit LCD "Pocket Watch" calculator
with box and instruction book 
R3 
8 706417 
12 digit vacuum flourescent printing calculator with memory, percent and square root 
Root8 
21348903 

SL100B 

folding solar LCD with memory, square root and percent 
SL702 

early walletsized solar LCD 
QA10 

"Time Face" LCD clock/calculator, can do time calculations 
QA100 

"Time Face" LCD clock/alarm/timer/calculator, can do time calculations 
SL1200L 

12digit LCD "Time Calculations" plus square root
Need instruction booklet 
ST1 

Stopwatch/Calculator, 8 digit LED
(same display module at the CQ1)
with case but missing keypad cover 