21 Dec
2002
21 Dec
'02
2:09 p.m.
It was interesting to look through the archives. Sad, too. Too many
of those computers are familiar!!
Hey, I probably started way back with a Olivetti Underwood Programma
101 (http://www.silab.it/frox/p101). That was one of my first real
experiences with a programmable computer (some would say calculator),
way back in the early 70's.
Somewhere after that I did some programming on a TRS-80, storing my
programs on audio tape.
And I wish I could use my HP-25 calculator (1976). I need to find
replacement rechargeable batteries. It was amazing what one could
program into that thing with only 49 steps locations! Fun stuff and
RPN was interesting.
Blah, blah, blah. PDP-11, DEC-System 10, Apple II in college... so on.
Anyway, cleaning up through my things I've pretty much decided to break
the ties and offer up a few pieces of equipment, if you know of any
interested parties:
------------------------------------------------------------
SUN 3/160 CPU board (pn 501-1208)
Its a 68020 @ 16.67MHz, 68881, Sun-3 MMU, 4MB, 2 MIPS, 9U VME
format, B/W video, Ethernet, serial, parallel ports. This board weighs
nearly 4 pounds!
The site http://www.sunstuff.org/hardware/systems/sun3/sun3/3-160/
claims this is the first 68020-based Sun machine.
------------------------------------------------------------
From the same 3/160 machine (which years ago I hauled
off the 200 some
pounds of chassis-- don't hate me!)...
Clearpoint SNXRAM Memory Board (dated 1986)
Populated with 8MB with sockets for another 4MB, if you have
the necessary 144 MCM6256 (256K x 1bit) memory chips (with an extra
parity bit for every eight, the numbers work out).
------------------------------------------------------------
Maxtor XT 43805 380MB SCSI Disk
Full Height - Approx 6x8x3 5.5 pounds
------------------------------------------------------------
Micropolis 1325 ST506 85MB SCSI Disk
Full Height - Approx 6x8x3 6 pounds
Dated 1986
------------------------------------------------------------
KIM-1 Microcomputer system (late 70s?)
It's a 6502-based micro. According to
http://www.6502.org/oldmicro/buildkim/kim.htm, "The KIM-1 is the first
computer developed by Commodore, or better, MOS [Technologies]. MOS was
an IC producing factory which Commodore took over to be sure of a
constant supply of ICs.... The KIM-1 has 1152 bytes of RAM, 2048 bytes
of ROM and 30 I/O-lines. Some of these lines are used to drive six
7-segment LED-displays and others are used to read the little
hexadecimal keyboard." You would use audio tape for storage and use a
teletype, etc. for My father built this unit up with more memory, nice
power supply, etc.
------------------------------------------------------------
That's about it (I really don't consider old 386 PCs as interesting),
though I do have a Casio FX-7000 graphing scientific calculator (1985).
But I saw on ebay going for $6. Its not about the money, it just
shows there isn't much interest in it.
Thanks for your time. If you know of anyone interested in these
things, let me know (I may keep the KIM-1).
Scott Austin
__________________________________________________
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Yahoo! Mail Plus - Powerful. Affordable. Sign up now.
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3:29 p.m.
I'm definitely interested in the KIM-1!
--John
-----Original Message-----
From: cctalk-admin(a)classiccmp.org
[mailto:cctalk-admin@classiccmp.org]On
Behalf Of Scott Austin
Sent: Saturday, December 21, 2002 17:58
To: cctech(a)classiccmp.org
Subject: My old computer gear-- Any interest?
It was interesting to look through the archives. Sad, too. Too many
of those computers are familiar!!
Hey, I probably started way back with a Olivetti Underwood Programma
101 (http://www.silab.it/frox/p101). That was one of my first real
experiences with a programmable computer (some would say calculator),
way back in the early 70's.
Somewhere after that I did some programming on a TRS-80, storing my
programs on audio tape.
And I wish I could use my HP-25 calculator (1976). I need to find
replacement rechargeable batteries. It was amazing what one could
program into that thing with only 49 steps locations! Fun stuff and
RPN was interesting.
Blah, blah, blah. PDP-11, DEC-System 10, Apple II in
college... so on.
Anyway, cleaning up through my things I've pretty much
decided to break
the ties and offer up a few pieces of equipment, if you know of any
interested parties:
------------------------------------------------------------
SUN 3/160 CPU board (pn 501-1208)
Its a 68020 @ 16.67MHz, 68881, Sun-3 MMU, 4MB, 2 MIPS, 9U VME
format, B/W video, Ethernet, serial, parallel ports. This
board weighs
nearly 4 pounds!
The site http://www.sunstuff.org/hardware/systems/sun3/sun3/3-160/
claims this is the first 68020-based Sun machine.
------------------------------------------------------------
From the same 3/160 machine (which years ago I
hauled off
the 200 some
pounds of chassis-- don't hate me!)...
Clearpoint SNXRAM Memory Board (dated 1986)
Populated with 8MB with sockets for another 4MB, if you have
the necessary 144 MCM6256 (256K x 1bit) memory chips (with an extra
parity bit for every eight, the numbers work out).
------------------------------------------------------------
Maxtor XT 43805 380MB SCSI Disk
Full Height - Approx 6x8x3 5.5 pounds
------------------------------------------------------------
Micropolis 1325 ST506 85MB SCSI Disk
Full Height - Approx 6x8x3 6 pounds
Dated 1986
------------------------------------------------------------
KIM-1 Microcomputer system (late 70s?)
It's a 6502-based micro. According to
http://www.6502.org/oldmicro/buildkim/kim.htm, "The KIM-1 is the first
computer developed by Commodore, or better, MOS
[Technologies]. MOS was
an IC producing factory which Commodore took over to be sure of a
constant supply of ICs.... The KIM-1 has 1152 bytes of RAM, 2048 bytes
of ROM and 30 I/O-lines. Some of these lines are used to drive six
7-segment LED-displays and others are used to read the little
hexadecimal keyboard." You would use audio tape for storage
and use a
teletype, etc. for My father built this unit up with more
memory, nice
power supply, etc.
------------------------------------------------------------
That's about it (I really don't consider old 386 PCs as interesting),
though I do have a Casio FX-7000 graphing scientific
calculator (1985).
But I saw on ebay going for $6. Its not about the money, it just
shows there isn't much interest in it.
Thanks for your time. If you know of anyone interested in these
things, let me know (I may keep the KIM-1).
Scott Austin
__________________________________________________
Do you Yahoo!?
Yahoo! Mail Plus - Powerful. Affordable. Sign up now.
http://mailplus.yahoo.com
22 Dec
22 Dec
8:49 a.m.
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9:22 a.m.
Tony Duell wrote:
Some of us here _love_ HP calculators, and still use
them almost every
day... I don't think I _could_ use a non-RPN calculator now.
I second that... I have an HP-35 on my desk at work that I use every
day. I have never had a bit of trouble with it.
The power module cable is a problem though. The wires in the cable seem
to break at the molded connector on the calculator end. I have two
calculators and three power modules. I can only get one of the power
modules to work most of the the time. I will have to try rebuilding the
battery packs. All of them I have are shot.
-tony
Long live RPN.....
-chuck
11:32 a.m.
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23 Dec
23 Dec
10:46 a.m.
On Sunday, December 22, 2002, at 03:24 PM, Charles H. Dickman wrote:
Another HP flag-waver here...HP-41CX at the electronics workbench and
HP-28S near the workstation where I do my programming. They'll have to
pry them from my cold dead fingers.
-Dave
--
Dave McGuire "She's a cheek pincher. I have scars."
St. Petersburg, FL -Gary Nichols
Some of us
here _love_ HP calculators, and still use them almost
every day... I don't think I _could_ use a non-RPN calculator now.
I second that... I have an HP-35 on my desk at work that I use every
day. I have never had a bit of trouble with it. 
11:01 a.m.
dave you have a 28s - i loved mine till it died - sent it to hp to fix
and they sent me a 48 to replace it - it had the best keyboard instead
of having to shift alpha modes all the time - billp
On Monday, December 23, 2002, at 04:48 , Dave McGuire wrote:
On Sunday, December 22, 2002, at 03:24 PM, Charles H.
Dickman wrote:
Another HP flag-waver here...HP-41CX at the electronics workbench and
HP-28S near the workstation where I do my programming. They'll have to
pry them from my cold dead fingers.
-Dave
--
Dave McGuire "She's a cheek pincher. I have scars."
St. Petersburg, FL -Gary Nichols
Some of
us here _love_ HP calculators, and still use them almost
every day... I don't think I _could_ use a non-RPN calculator now.
I second that... I have an HP-35 on my desk at work that I use every
day. I have never had a bit of trouble with it.
7:53 p.m.
On Monday, December 23, 2002, at 05:04 PM, bill pointon wrote:
dave you have a 28s - i loved mine till it died - sent
it to hp to fix
and they sent me a 48 to replace it - it had the best keyboard instead
of having to shift alpha modes all the time - billp
Yup, I use a 28S for programming stuff. Great calculator, all
logical ops right there on softkeys. Drunk now, but will talk abotu it
later.
-Dave
--
Dave McGuire "She's a cheek pincher. I have scars."
St. Petersburg, FL -Gary Nichols
11:26 a.m.
At 03:24 PM 12/22/02 -0500, Charles wrote:
The power module cable is a problem though. The wires in the cable seem
to break at the molded connector on the calculator end. I have two
calculators and three power modules. I can only get one of the power
modules to work most of the the time. I will have to try rebuilding the
battery packs. All of them I have are shot.
Are you talking about HP-35 type claculators or HP-25s? I've never seen a cable
problem on the chargers for the HP-25 but I've seen lots of problems with the HP-35
type chargers that use three wires. But they can be fixed. First you need to open the
charger and figure out exactly which wire (or wires!) are broken. They will almost
certainly be broken where the wires enter the molder plastic plug. You'll have to cut
back the plug and slit open the wire insulation until you find the break. The break is
usually easy to find because the wire will be very flexible at the break. Then I cut the
insulation back about 1/8" past the broken ends and solder a short piece of very
flexible wire to the ends. (I use a J hook to make they have a good connection that will
resist the pull on the wires.) After I get them working, I wrap the joint with unwaxed
dental floss (high strength nylon cord) and coat it liberally with the plastic potting
compound that's used to coat plier handles. I zig zag the dental floss back and forth
past the joint to try and give the joint some reinforcement. You can't go far on the
molded plastic plug but you can wrap the cord over the bulges so that it has some place to
attach. I've fixed DOZENS of chargers this way and my success rate is about 98%.
Both the HP 35 type calculators (aka classic series) and the HP-25 type both use AA size
NiCads and are fairly easy to rebuild. But you'll have to reuse the contacts on the 35
type packs and they need to be spot welded to the cell so you'll probably have to find
someone that has a battery spot welder. Anyone that builds or rebuilds battery packs
should have one. Batteries Plus is one company that comes to mind. They seem to be wide
spread. Beware of some of these companies. Some of their prices are outragous. I went to
an Interstate battery store a couple of weeks ago and they quoted me almost $100 to
rebuild a five cell battery! I told them they were out of their minds. That job
shouldn't cost more than $20. The battery wholesaler that I use to do business with
charged about $2.50 each for AA size Sanyo NiCads and $.50 for each strap that they welded
on. That would come to about $11.50 for a HP-35 type battery and that's using GOOD
Japanese made Sanyo cells.
Batteries. I INSIST on Japanese made Sanyo cells! I've tried a lot of other brands
and found most of them are JUNK! I haven't found ANY good American made, Chinese made
or Mexican made cells including the Mexican made Sanyos. I've heard that some of the
other Japanese made cells are good but I haven't tried them. I've had EXTREMELY
good luck with the Japanese made Sanyos. I've rebuild hundreds of battery packs with
them and I think I've only had one cell fail. I've also got a set of four AA
Sanyos that I bought in Thailand in 1973 and they're still working fine!
Joe
7883
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