Todd S Elliott wrote:
>
> Hello.
>
> Maybe the list can help; I notice some sprinkling of PET topics here and
> there.
>
> I came across a Commodore Calculator model US*8 in a thrift shop. I don'
> t know if it's a find or a piace of junk. Did Commodore make a lot of
> different models, just like they did w/ their computers? Is it a rarity?
> Etc.
>
I'd figure after typewriters, fililing cabinets, desks, etc., commodore went
into the adding machine business (as I have seen a few C= models for sale) and
then when calculators hit it big they bought chips from Texas Instruments (TI)
not too long after buying some huge order TI decided to get in the calculator
market with using own chips and way undercut all the people they sold chips
too. Tramiel at that point didn't want to be burned again by such tactics
bought a chipmaker (MOS Technologies), owners of the 6502 and ran by Chuck
Peddle, which helped pave the way to making the PET and other computers.
There are a handful of digital watches by Commodore out there too; mostly red
LED ones.
As far as calculators, this is from the Canoonical Commodore list:
(it is not fully complete, there are some variations not listed)
.Calculator Series:
.* 202 electric, 1 digit display with slider indiciator,
. black case, white keypad, black,white,red keys SN B-63768 WW
.* 208 mechanical tape calc with red/black ribbon. MI
.* Blue LEDs, basic math, cream color, blue/red butons. TA
.* Scientific calc, made in England, 44 extra keys BD
.* 401 paper readout, darkgreen/bluegreen DV
. 770D
.* 774D Red LED, 9 digit, white keys. Red clear and blue op keys. BA
. 776M
.* 797D Red LED, basic math+memory and percentage, cream/blk keys BD
.* 887D 8 dig Red LED, white, black trim, white, red, blue keys. RI
.* 897D 10 digit Red LED, basic math, percent, one memory. GK
.* C108 green LED, basic math, black, colored buttons DV
. GL976MR
. GL979R blk-cream case,Colored buttons,green LED,basic calc+mem+x^2
.* LC5K2 JC
.* MM3M Cream, Colored buttons, Red LED readout, basic math, 1 mem. JB
.* MM3M (Conv) MM3M with Volume, Area, Metric Conversions JP
.* MM6 blk-silver case,basic calcs,red LED,switchable dec point,
. 9V battery TE
.* N80 10 dig LED, white nums, blue func, lt-blu mem, navigational FR
.* SR-1400 "Electronic Slide Rule Calculator" may 5, 1975 JS
.* SR-1800 Black, Colored buttons, Green LED readout, Trig. FB
.* SR-9190R Black, 10 Red LED, 49 keys, white num keys, SN#26612. RI
.
.* GL997R blk-cream case,colored buttons,green LED,basic calcs+memory TE
.* SR-4120R SR-4148R TE
.* SR-4148R blk case,colored buttons(48),10 red LED,
. basic calc+memory+trig+x^y+statistics TE
.* SR-100NC black case,49 colored buttons (most of them twice used),
. scientific calcs (was originally sold as QUELLE Privileg
. but is from Commodore) TE
--
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Larry Anderson - Sysop of Silicon Realms BBS (209) 754-1363 300-2400 baud
Commodore 8-bit page at: http://www.jps.net/foxnhare/commodore.html
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