Various Manufacturers

I am interested in collecting old calculators, which you can read about here.
Other things I'm looking for are listed here.

Listing

Adler
APF
Berkey
Brother International
Calculated Industries
Calfax
Canon
Command
Commodore
Compex
Corvus
Craig
Eldorado
Enterprex
General Electric
General Instrument
Hanimex
ICP
  Heathkit
Kings Point
KMC
Kosmos
Litronix
Lloyds
Logic Data
Mayfair
Melcor
Microlith
Minitron
MITS
Montgomery Wards
Monroe
National Semiconductor
NCE
Nippon Calculating
  Novus
Olympia
Omron
Panasonic
Philips
Qualitron
Radio Shack
Radofin
RCA
Rockwell
Royal
Sanyo
SCM (Marchant)
Sears
Sharp
Silver Reed
Sinclair
Singer/Friden
  Sony
Soundesign
Sperry
Summit
Tandy
Teal
Tiktron
Toshiba
Unicom
Unisonic
Unitrex
Universal Data
Victor
Wards
XAM

ADLER
Model Serial Number Notes
108T 68.685.721 eight digit vacuum-florescent scientific
with slip-on case
804 681710 eight digit vacuum-florescent adding-machine style
LT 831 72460210 eight digit LCD calculator/clock/alarm/stopwatch
with square root, percent and memory
with original box, case and instructions
APF ELECTRONICS
Model Serial Number Notes
Mark 26 R 0137473
Mark 30 R 21242 with AC adapter (model 751S)
Mark 40 J 197675
J 232485
R 104598
four-function LED with percent
Mark 50 J-54194
J-016269
J-026357
J-059008
blue-green VFD scientific
Mark 51 J-018816
J-095261
blue-green VFD scientific
both with cases, one instruction booklet
Mark 61 011143 thin LED with memory, percent and square root
Mark 64 H64 102656
Mark 65 003396 LED with memory, percent and square root
Mark 65r 021906 rechargeable version of the Mark 65
LED with memory, percent and square root
Mark 84 J 030428
Mark 85r MT-009207 need AC adaptor model 751S
Mark V 48283
52526
early blue-green LED with flip cover and battery meter
Mark VI 9250
12343
early four-function LED with memory and percentage
Back label on SN 21343 says "Model No. Mark 10"
Uses AC adapter model 620
Mark XII D 20255 twelve-digit Panaplex four-function with memory functions
BERKEY
Model Serial Number Notes
4030 C244987 eight digit red electro-flourescent scientific
with original box, AC adapter, instructions, etc.
Looks like it was never used.
BROTHER INTERNATIONAL CORPORATION
Model Serial Number Notes
827A 3745351 eight digit red LED, four function with memory and summation
with case and AC adapter Z-12-60 (6 VDC 300mA, center negative)
CALCULATED INDUSTRIES
Model Serial Number Notes
GradeMatic 3000 LCD academic grade-based calculator
In it's case
CALFAX
Model Serial Number Notes
890P eight digit red LED, four function with percent and constant
CANON
Model Serial Number Notes
121 403146 12-digit Nixie desktop
Canola L1000 10-digit Panaplex desktop 4-function
Canola L1011 305071 larger "handheld"/desktop model
Checkbook III LCD checkbook model, "Money Manager"
F-55 S LCD scientific/statistical "Canon card F-55 S"
Financial 10 digit LCD "Financial Manager"
LC-62 ("Canon Card LC") thin LCD four function with memory, percent and square root
MD-8 ("Multi 8") two-line blue VFD with square root and memory functions with case
Palmtronic 8 with case
Palmtronic 8M (LD-8M 3) 035500
398515
LED four-function plus memory, percent, square root
Palmtronic 8 mini have 2, one with case
Palmtronic 8-T Sexagesimal calculator (base 60), LED time calculator
Palmtronic F-5 504018
518659
eight digit red LED scientific
with case, instruction booklet and AC adapter 474 (LR21061) 5.8 VDC
Palmtronic F-56 555340 LCD scientific/statistical
Palmtronic F-61 555340 VFD scientific/statistic
Palmtronic LC-3 775002 8 digit LCD with memory, percent and square root
with case and instructions
Palmtronic LD-8M 2 I have at least two of these, one with a case
Palmtronic LD-80 505867 four-function VFD display, with percent
Palmtronic LE-10 606450 ten-digit red LED four-function
has a built-in "analog battery check" meter
with case but missing battery pack ("Canon Palmtronic Dry Battery Cassette", holds four AA batteries)
Palmtronic LE-81 with case and instruction booklet
Palmtronic LE-83 with case and AC adapter
Palmtronic LE-84 with case
COMMAND
Model Serial Number Notes
HC-8 094630 desktop AC-powered eight-digit vacuum flourescent four-function
COMMODORE
Model Serial Number Notes
1540 02263 14-digit green VFD desktop "Advanced Scientific Calculator"
512 205440 early Nixie tube four-function calculator
with original case and instruction sheets
797M 094630 with original box and instruction manual
884D 011028 with original box and instruction manual
887D 015460 with AC adapter (model 505)
9D31 00988 green VFD, with PI, inverse, squared, square tooy and memory
C112 C-53109 desktop vacuum-florescent four-function, with carrying case
GL986R 18644 with original box and instruction manual
GL987R 000420 with AC adapter
Minuteman 3 092700 eight digit red LED
with case, uses 4 N-type batteries
MM2SR 83654 red LED with memory, percent, square root, square and inverse
with case, works with AC adapter model 707
SR-4912 156420
?16049 (label is faded)
49 key LED scientific
SR-6120R 27729 with adapter type 707
US 1M 014231
COMPEX
Model Serial Number Notes
MQ-1200 A1157318 desktop, battery-powered 8-digit LCD clock/calendar/calculator
with Instruction Manual
CORVUS
Model Serial Number Notes
322 160702 handheld 8-digit red LED with memory and percent
in original box with case, instructions and AC adapter
0300 300-21130 desktop 10-digit Panaplex display, four-function plus percent, square root and inverse
CRAIG
Model Serial Number Notes
4503 297926 large "handheld" four-function, each LED is in a separate glass tube
4504 0007538 four-function eight-digit red LED with adjustable decimal
4505 0518630
4512A 7473634 VFD scientific ("engineering calculator")
4513 7456686
7459352
with one Craig 9227-K1 AC adapter
4516 037272
042276
eight digit blue-green LED, with percent and memory
both with case, one instruction manual
4517 5125993 eight digit blue-green LED, with square root and percent
4518 510449 eight digit red LED, with square root and memory
with case
4519 5109078 eight digit blue-green VFD, with square root, Pi, exchange and memory
with case
4522 5307419 green LED, memory and percent functions
ELDORADO ELECTRODATA CORPORATION
Model Serial Number Notes
Director Two 52148 early four-function desk calculator, orange florescent display
ENTERPREX
Model Serial Number Notes
R-90 5323385 square root, percent, memory; with case and instructions
GENERAL ELECTRIC
Model Serial Number Notes
Scientific 90 9147350 eight digit blue VFD scientific
GENERAL INSTRUMENT
Model Serial Number Notes
EZ3500 153669
155737
155738
eight digit red LED scientific
two cases, two instruction booklets
identical (other than the color of the buttons) to Radio Shack EC-475
HANIMEX
Model Serial Number Notes
BCM30 two of these, one with a case
HEATHKIT
Model Serial Number Notes
IC-2006 348 kit built handheld eight-digit LED four-function calculator
Need manual(s)
IC-2008A 217
1225
kit built four-function calculator
I have two of these, one isn't functional
IC-2100   Eight-digit AC-powered kit-built "electronic slide rule" calculator
Need manual(s)

Click here for more photos and a write-up from 1975.

Scans from a 1975 Heathkit catalog are here.

ICP
Model Serial Number Notes
530
KINGS POINT
Model Serial Number Notes
Model 8413 Micro Algebra 090375
KP-19 3078B0151 Eight digit red LED with memory, exchange, square, square root and inverse
KP-450 50952 VFD with percent, sum plus, sum minus, sub and grand totals, and exchange
KMC
Model Serial Number Notes
KMC 7000 6734215 scientific LCD, rebranded Sharp?
KOSMOS INTERNATIONAL
Model Serial Number Notes
Kosmos 1 ???
707172B
7078088B
7082072B
Biorhythm calculator
one with case, owner's manual and a booklet entitled Biorhythm and You: Some Interesting Facts

AC adapter is model QFK-42082, 4.5V DC, 200 mA, center (tip) negative

Kosmos 2 ???
007548
Biorhythm calculator
Kosmos Astro ???
113682
Astrological calculator
with original box, case, and instruction book
I also have the Radio Shack version of this calculator EC-312, Cat 65-801
One of these is missing the battery cover
LITRONIX
Model Serial Number Notes
1101P 66126
1102
1602 07644 "solid state" with 4 memory functions and percent
2200 47993
116437
LED with memory and metric conversion functions
The 47993 unit has a modification on the left side that is basically a slide switch to control the power -- with the switch on the [off] button has essentially no effect.
2230 133020
179637
with case
2260 130597 eight-digit red LED "slide rule"
checkmate 1720 31819
58002
four-function LED with memory and percent
both with case, one instruction booklet
LLOYD'S ELECTRONICS
Model Serial Number Notes
Accumatic 200 (model E681) 211891
Accumatic 303 (model E303) 045651 with case
Accumatic 311 (model E311) 193041 with case
Accumatic 320 (model E320) 5J-003545 with case and instruction booklet
Accumatic 334 (model E334) 62214 scientific with box, case and instruction booklet
Accumatic 680 (model E680-3) LED adding machine-type calculator
LOGIC DATA CORPORATION
Model Serial Number Notes
TA-3 TA30000799 8-digit Nixie four-function with extended display (arrow)
MAYFAIR SOUND PRODUCTS, INC.
Model Serial Number Notes
2W01B 18033-0100 eight digit vacuum-flourescent four-function
powered by four C-cell batteries, "auto shut off"
MELCOR
Model Serial Number Notes
390 413022 Middle bar of left-most LED is not functioning
392 309307 eight-digit LED four-function plus memory and percent
400 4030911
4040433
eight-digit LED four-function plus memory, reciprocal, square and square root
with instruction booklet
MICROLITH
Model Serial Number Notes
205 eight digit LED scientific
Memory 4 model 113G
MINTRON
Model Serial Number Notes
805D 60220167 basic four LED plus memory and percent
MICRO INSTRUMENTATION AND TELEMETRY SYSTEMS
Model Serial Number Notes
1440 A10563 kit built four-function LED plus memory, squaring and square root
MONTGOMERY WARD
Model Serial Number Notes
D10P 37N-0030011 LED desktop adding machine-type calculator
P-50 four function red LED
MONROE
Model Serial Number Notes
920 117946 12-digit desktop Nixie tube
925 E 012628 14-digit desktop Nixie tube
990 S 104857 16-digit desktop Nixie tube
1655 E 915452 10+2 digit Nixie scientific programmable calculator
with instruction manual
1710 G 936083 desktop Nixie tube scientific
1770 G 931133 desktop Nixie tube scientific
1775 E 836602 desktop Nixie tube scientific
1880 G 310697 circa 1972 scientific programmable printing calculator
with cover, instruction manual and cartographic programming sheets
1930 M 515474 14-digit Panaplex "semi-scientific"
NATIONAL SEMICONDUCTOR
Model Serial Number Notes
100A ???
???
early eight digit LCD calculator
both in fold-out wallets with instructions
102A ??? "super thin" eight digit LCD calculator
new in box (NIB) with case, instructions and warranty
200 ??? eight digit VFD calculator with memory, percent, square root, exchange and change sign.
With case and instructions.
600 429856
???
???
early six digit LED calculator
one with original box and instruction sheet
6010 "International Computer" red LED conversion calculator
I have two of these
750
832 four-function LED with percent, exchange, square and square root
835 (three of these) four-function LED with memory, percent, and square root
835A I have at least four of these, and at least one set of instructions
852 eight digit red LED scientific
I have three of these, one with an instruction manual and another with a box and instruction manual
Quiz Kid Racer eight digit red LED educational
not really a calculator, it generates test problems to be solved
NCE NUCLEAR
Model Serial Number Notes
Summit with case
NIPPON CALCULATING MACHINE CORPORATION
Model Serial Number Notes
Busicom 162-DE 37SB140080 16-digit VFD dual-memory with square root
NOVUS
Model Serial Number Notes
600 with Novus CD-920 AC Charger/Adapter
835
850 1424367
031729
with original box and instructions, missing battery cover
4510 Mathematician 114133
1191323
1192850
RPN LED scientific
one Operations Guide, one Novus case and one Novus model DC-920 AC adapter
CMIV with Novus case and instruction sheet
Financier 6020 1016658 with case
Mathematician RPN entry LED scientific
one made in Malaysia, stamped P841
one made in Malaysia, stamped P847
one with no stamp (but in a Novus case)
OLYMPIA
Model Serial Number Notes
CD 102 0146561 four-function plus constant and percent
twelve digit green LED desktop, battery (2 C cells) or AC power
CD 202 0038769 four-function plus constant, percent and memory
twelve digit green LED desktop, battery (2 C cells) or AC power
OMRON TATEISI ELECTRONICS COMPANY
Model Serial Number Notes
800 07356 early four-function desktop, type 800-2
86M 3108228 LED with memory and percent
with instruction manual
86SR 5093726 eight digit blue-green vacuum flourescent scientific
86R 7056494
88M 05079519 eight digit blue-green vacuum flourescent four-function with percent, square root, and several memory functions
PANASONIC
Model Serial Number Notes
JE-2001U 45202225 eight-digit LED four-function with memory and percent
with case, instructions, original box and warranty card
8004 86404758 eight-digit LED four-function with memory, percent and square root
with case
JE-8336U 90300316 World Time Calculator
New in box with box, case, instructions and warranty card
JE-836OUT 15401602 early four-function LCD, with percent, memory and square root
JE-883U 3X701848 four-function, with leather case
JE-8836U 97302496 "World Time Calculator", calculator with memory, percent and square root
stopwatch, time/date clock, four alarms with fold-over leather case
JE-850U 2000489 Retro vacuum-flourescent tube four-function, with zippered case
this unit is identical to the Olympia CD-80
PHILIPS
Model Serial Number Notes
P-35 013277 eight-digit LED scientific with Reverse Polish Notation (RPN) entry
similar in design to Novus/NatSemi mathematical
QUALITRON
Model Serial Number Notes
1442 598202 "Standard Model" green vacuum-florescent four-function with memory (including exchange) and percent.
RADIO SHACK
Model Serial Number Notes
EC-21 Blackjack 21, calculator and blackjack game
Catalog 60-3011, with case and instructions
EC-220 302336
EC-221 14802 four function, eight digit red LED with percent
with case, instructions and original box
Radio Shack catalog number 65-609
EC-222, "micro mini" ??? very small four function, eight digit LCD with memory and percent
Radio Shack catalog number 65-612
in fold-open case
EC-226 20013 four function, eight digit red LED with memory and percent
Radio Shack catalog number 63-731
EC-231
EC-242 four-function LED, with memory and percent
EC-250 124607 Four-function with percent
"Klixon" keypad
EC-300 A2 300-07121 early eight-digit red LED four-function with memory and percent
LCD display
EC-307 "Chronomath" LCD calculator/clock/alarm/stopwatch
with original box and owner's manual
EC-306 Electronic checkbook calculator
LCD display
EC-312 024863 Astrological calculator
with instruction booklet
EC-317 eight digit LCD calculator with memory, square root and conversion functions
"decimal - fractional - yard - foot - inch"
with folding case
Radio Shack catalog number 65-935
EC-350 A 02264
A 39306
early eight-digit red LED four-function with memory and percent
both with AC adapter/charger for EC-350, one zipper case
EC-360 Data Dictionary
EC-380 LED four-function with percent, square root, and memory functions
EC-4000 2143508 LED programmable
with box, AC adapter, instruction book and programming sheets

This is the same as a Texas Instruments TI-57.
Original price in 1978 was $79.95.

EC-4013 LCD fold-over (two keypad) solar scientific
EC-402 LCD solar four-function with memory, percent and square root
EC-4021 Programmable Scientific Calculator
More Info
EC-4027 More Info
EC-4032 10-digit LCD solar-powered scientific (Catalog 65-998)
in fold-open case
EC-4035 LCD scientific
with Owner's Manual
EC-4075 5002601
5003067
5005732
6032976
LCD "Programmers Hextime Calculator" (Catalog 65-990)
one with case and instruction booklet
EC-448
EC-475 (65-634) 124785
146239
eight digit red LED scientific
identical (other than the color of the buttons) to General Instrument EZ 3500
one with case and operating instructions
EC-495 004226 (7A6)
008279 (5A7)
Catalog Number 65-638A
green LED scientific, one with case and original box
RADOFIN ELECTRONICS LTD
Model Serial Number Notes
1620 60589 red LED four-function with memory and percent
with box, instructions and guarantee
1650 14844 with box and instructions
RCA
Model Serial Number Notes
3C3030 ???
R02032
boxy AC-powered four function calculator with clock, alarm and interval timer. Nifty orange-colored plasma display.
ROCKWELL
Model Serial Number Notes
8R have three, one in original box with instruction sheet
9TR 112113 a lovely shade of green
10R ???
163426
three of these, one with case and instruction booklet and one missing a battery cover
18R 322675
435064
14RD-II 125113096 with instruction booklet
20R 124489
136713
with case and instruction booklet
22K 101586.076
121179086
both with case
24RD 104420095
110270.095
one has a cracked battery door
24RD II 167973046 with owner's manual
30R 146185
44RD 115094.026 with leather case
63R 234740 in original case with instruction sheet
need recharger 328R07-001
350 721562
725960
726116
Desktop LED scientific
ROYAL TYPEWRITER COMPANY
Model Serial Number Notes
8MK-AD 69420984
81M 69.041.207.12 with case
91S 043046 green LED, square root, PI, percent exchange, and memory functions
with case, instructions, and original box
L811 72794165 early 8-digit LCD with PI, percent, square root and memory functions
MemoCalc 018921 Micro Cassette Recorder - Calculator combination unit
Four-function LCD with percent, square root and memory
Company shown as Litton Royal
with case
SANYO
Model Serial Number Notes
CX-111 four-function LCD with memory, percent and square root
CX-130 3408042 four-function LCD with memory, percent and square root
CX-550TH 4005137 eight-digit LCD Programmer's HEX & TIME Calculator
Same as Radio Shack EC-4075
CX-2710 solar-powered four-function with memory, percent and square root
with wallet-style case
CX-7250H   "Marathon" model with a built-in pedometer
with case, instructions and box
CX-8105 09100817 T eight-digit VFD with memory, percent and square root
with hard shell cover
CX-8138AN 190996 F with case
CY 3020 42203348 12-digit AC desktop with memory, percent, and square root
CZ-0123 12917366 T with case
LED scientific
SCM BUSINESS EQUIPMENT
Model Serial Number Notes
Marchant 210 21008766 Desktop rechargeable four-function with Panaplex display
with case, AC adapter and manual
Cogito 412 71903563 Nixie tube adding machine
Cogito 414 7110 04109 More Info
SEARS
Model Serial Number Notes
728.58821 169388 Early four-function red LED
8 111977 need AC adapter
8m (801.58240) 204484 eight digit red LED with memory and percent
with AC adapter 19591R04-01 (7.9 VDC)
801.58770 (Electronic Slide Rule) 121706
144260
??? (backplate missing)
early LED scientific with imprint of the Sears Tower just below the display
each with instruction booklet, two with good cases and one beat-up case
801.58840 (Universal Converter) 112046 early LED with unit conversion functions
with case and instructions
8M (801.58240) 211523 eight digit red LED, four function plus memory and percent
with original box, instructions and AC adapter (7.9 VDC, positive tip)
LC 84 441946 early LCD (yellow window), four function plus memory, percent and square root
LC 87 723524 LCD "scientific slide rule" (model 711.58321)
with case and instructions
M8 249726
SHARP
Model Serial Number Notes
CS-22A Compet 22 809081 fourteen-digit Nixie four-function plus memory
CS-363R 27023404 sixteen-digit Nixie four-function plus three memories
CT-600 813
81052767
eight-digit LCD four-function plus square root
Also has clock and stopwatch functions
One with instruction manual
EL-1100S 65001163 ten-digit left-aligned green VFD scientific with a separate three-digit LED exponent display.
EL-120 43146562 three-digit green VFD four-function with an arrow to view additional digits of result
Also has a "count" button below the display
EL-121 43163616 six-digit green LED four-function with an arrow to view additional digits of result. An LED indcates when the additional digits are being displayed.
EL-122 41135866 six-digit green LED four-function with an arrow to view additional digits of result
EL-201 66793959 early green LED four-function plus "total" key and square root
EL-201S 6641123Y early LCD four-function plus memory and square root
EL-203 74408186 early LCD four-function plus percent, memory and square root
EL-206 90085912 early LCD four-function plus memory and square root
EL-208 0E2
0E5
9I8
early LCD four-function plus memory and percent
EL-211 0817944X early LCD four-function plus memory, percent, and square root
EL-215 early green LED four-function plus memory, percent, and square root
EL-230 early LCD four-function plus memory, percent, and square root
with box and instruction sheet
EL-240 Eight-digit LCD with percent, square root and memory
EL-243 early LCD four-function plus memory, percent, and square root
with box and instruction sheet
EL-304 Eight-digit with percent, square root and memory
EL-323 Eight-digit LCD with percent, square root and memory
in a fold-out case
EL-500 2286377 green LED scientific handheld
in original box with instructions
EL-500S 7600247Y
82045286
green LED scientific handheld
EL-5000 75056731 green LED scientific handheld
EL-502 96124217 green LED scientific handheld
EL-509A-T LCD scientific with text
brand new in the box, calculator still sealed in cellophane
EL-512 70024777 LCD scientific
with fold-open case
EL-5200 7601302
86003833
"Super Scientific" flip-open graphing LCD
EL-531A 7406359 scientific LCD
EL-531S 64011 scientific LCD
EL-540 8V014 scientific solar LCD
EL-5510 Business/Financial Computer
More Info
EL-8002 44044310
???
four-function plus percent, one with case and AC adapter
EL-8016 5800160X green VFD four-function plus percent
EL-8016R green LED four-function plus percent and square root, with case
EL-8106 green LED four-function plus percent and memory, with case and instructions
EL-8024 yellow LCD four-function plus square root
in a folding case with AC adapter EA-17E
EL-8118 62040205
68167426
early scientific, selectable fixed and floating decimal
EL-8180 26119586 handheld LCD printing calculator with memory and square root
with case but no manual
EL-848 pocket-sized solar-powered LCD with memory, percent and square root
EL-9200C More Info
PC-1001 37002606
37009909
37019812
37046810
early programmable scientific calculator
PC-1002 47059905 early programmable scientific calculator
PC-1201 75014080 programmable scientific pocket computer
with manual and EA-17E AC adapter
PC-1802 47212308 eight digit green VFD scientific handheld
QS-1122
VX-1118 00012873
SILVER BUSINESS CORPORATION
Model Serial Number Notes
Silver-Reed SE 702 705543, QC No. Q84495 Nixie tube
SINCLAIR
Model Serial Number Notes
Cambridge Programmable 707227 Eight digit scientific handheld
with box and Operating Manual
Oxford Scientific   Eight digit scientific handheld, blue/green VFD
SINGER FRIDEN
Model Serial Number Notes
EC 1114 Nixie tube
EC 1117A More Info
EC 1118 64487 14 digit Nixie tube
EC 1203 14 digit Panaplex display with two memories
SONY
Model Serial Number Notes
Sobax ICC-400W 300691 Nixie tube four-function with memory
Sobax ICC-500W Nixie tube four-function with memory
Click here for more information.

This unit was used in an episode of the new "Let's Made a Deal" television game show

SOUNDESIGN
Model Serial Number Notes
8300 Mach II 19043-0202 large "handheld" eight digit blue-filtered LED (VFD?)
with case
SPERRY REMINGTON
Model Serial Number Notes
1259S Q-5734 twelve-digit nixie tube scientific
661-D 577560 six-digit electro-flourescent tube, with case
663 2104388
7018035
six-digit electro-flourescent tube, one with case
665 2155313
821GT 28011593
823GT 2162219 with instruction booklet and case
SSR-8 8000644 early LED scientific
Remington Lektronic
EDC 1201GT
310162 12-digit desktop four-function Nixie tube
SUMMIT
Model Serial Number Notes
MCC 113998 "Metric Conversion Computer", eight digit red LED
TANDY
Model Serial Number Notes
PC-4 Pocket Computer PC-4
PC-6 More Info
TEAL
Model Serial Number Notes
826
TIK-TRON
Model Serial Number Notes
108 016194
TOSHIBA
Model Serial Number Notes
BC-1010BJ D58588 10 digit green LED with square root and parentheses
Also has game mode to play Blackjack
have case and instruction booklet
BC-602L Toscal
BC-815 A 54224 blue LED with memory, percent and square root
with original box, case, instruction booklet and warranty card
BC-8018 with case and manual
BC-8018B with case
BC-8111B 16817 with case
SC-7500 129770 scientific, flourescent display
UNICOM SYSTEMS, INC.
Model Serial Number Notes
103 610650 eight-digit red LED four-function with memory
with case
UNISONIC
Model Serial Number Notes
1011 186278
1038 007074 eight digit green LED with square root, percent, inverse, square and parentheses
1040 104692
218079
basic four-function LED with square root, percent and memory
1049 008458
55510
four-function green LED plus square root, square, 1/X, Pi, percent and memory
have case and AC adapter SY-1200
1499 523665 10 digit plus 2 exponent red LED scientific
with case
1511L 72436
1540 D 29063
42456
one with original box and instruction sheet, both with cases
1541 L 137833 with case
1548 016398
187565
eight digit red LED with memory, exchange, inverse, square, square root, brackets and percent
both with case, one operating instructions
711 029427 with case
739 SQ with case
757 018005 with AC adapter (CAL-1)
790R 025948 four function plus square root, percent, memory functions
811 079404
64201
one with case
831 050960 with case
839 SQ 007973 with case and instruction manual
840 132418
888 "Slide Rulette" 039500
164420
four-function green LED, with percent
911 with case and manual
940 253624 with original box
CB-14 053938
119959
green LED with memory, percent, inverse, square and square root
LC-202B 259510 8 digit LCD with memory, percent and square root
Vegas 21 Game Calculator
UNITREX
Model Serial Number Notes
1200 D27K70552 twelve-digit Panaplex display adding machine style
817D 60055712 eight-digit scientific
901PM 5638614 eight-digit LED with percent, PI, memory and square root
with case and instruction booklet
901SR 5739067
90SC 14427 eight-digit red LED scientific with RPN entry
95SL 50119 eight digit red LED with memory, percent, square root and square.
micro 6 ???
A57C01788
six digit red LED, four-function with memory
mini 8 5739067
A47D99774
???
???
???
basic four-function LED with percent.
I remember using one of these while watching the Apollo-Soyuz mission in the summer of 1975.
mini handy 80F A57K29697 red LED financial
with case
mini handy 80M A47A26616
A47A51253
A47F89532
early LED four function with memory and percent
one with box, case, instructions and warranty card
mini handy 80SR A57B49971
A57G69192
eight digit red LED scientific
with case
UNIVERSAL DATA MACHINE CORPORATION
Model Serial Number Notes
9V9 408572 early four function nine-digit LED
(manufactured in Chicago)
with case and AC adapter 72V150 (7.2 VDC, 150 mA)

VICTOR COMPTOMETER CORPORATION
Model Serial Number Notes
104 R 7142005 nine-digit vacuum flourescent display (VFD)
square root, inverse, square, PI, percent and memory keys
MONTGOMERY WARD & CO.
Model Serial Number Notes
P-130 57X-035818 8 digit green VFD with memory and percent
with box and AC adapter
XAM
Model Serial Number Notes
879 5060973 "memory calculator" made in Taiwan, distributed by "Korvettes Products Inc" of New York
four function LED with memory and percent
Keys look like those found on many early Commodore calculators
TE-8000 0913 8 digit AC powered four-function desktop


Comments to Dan Veeneman

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Last updated August 27, 2016