Re: Calculator museum

Stan & Patricia Griffiths <w7ni@...>

Hi Dave,

I have one of the Tek 909's in my collection. I also have a couple Tek


----- Original Message -----
From: "Dave Brown" <>
To: <>
Sent: Saturday, April 24, 2004 3:27 AM
Subject: Re: [TekScopes] Calculator museum

I have a 9100A 'under repair' here-plus the small printer that sits on top
of the 9100 and the separate X-Y plotter. The 9100 was working fine till
was accidentally knocked off the desk it was sitting on a few years back-
Boo! Hoo!
The "A" model only has 168 pgm steps.

.....Begin "nearly back on topic"

If anyone has one of the early Tek desktop programmable calculators I'd
to hear from them- these were the Tek 'Scientist 909' or the Tek
'Statistician 911'-these machines had 256 pgm steps and a 16 'character'
nixie tube type display. I suspect very few of these were ever sold.

Dave Brown
Christchurch, NZ

----- Original Message -----
From: "Greyhawk" <>
To: <>; <>
Sent: Saturday, April 24, 2004 7:37 AM
Subject: RE: [TekScopes] Calculator museum

I Still Have An HP Model 9100 B "Desktop" That Uses A CRT For The
And Has 32 Storage Registers, And 392 Program Steps. Back In 1968 $4900
A Small Fortune For A Calculator.



From: Morris Odell []
Sent: Thursday, April 22, 2004 12:41 AM
Subject: RE: [TekScopes] Calculator museum

Great discussion!

I still use a HP-45 that I bought new in 1973 for about AU$300 (I hate
to think what that would be in 2004 dollars!) In that time it's had one
battery change and the series pass transistor in the PS/charger had to
be replaced. I love the RPN and often wish it did Hex as well.

The lack of programming is no hassle really, these days complex
calculations can be done very easily on a computer.

I also use a 54 year old nondescript decaying necktop of distantly
reversed polish ancestry :-) Has anyone here read the section in the Jim
Williams Analog Design book on lightning mental arithmetic?



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