Does anyone have any idea what this is?
<http://www.classiccmp.org/hp/laser/computer%20link.jpg>. The "sticks"
sticking out to the left are long skinny mirrors. Each one can rotate +/-
45 degrees by means of the knobs on the right side. One side of the
rotating mirror shows a number such as "1", when you rotate it it shows
"2", etc etc. This is the second one of these that I've found but the first
was all busted up.
Joe
Looked at the manuals: systems with one or two cardcages ship with 2-phase 220v power supplies, 3 card-cage models ship with 3-phase 208v power supplies
On Nov 10 2005, 20:13, Tony Duell wrote:
> > So I guess it works. This thing seems to be made in the same way
that the
> > Sinclair LED wristwatch I once had was--CHEAP is the biggest
consideration.
>
> Exactly. And don't care if it works properly, or if it's convenient
to
> use. Remember Sinclair once sold a scientific calculator that gave
you 3
> accureate significant figures if you were lucky!
That would be the one that took longer to calculate the sine of an
angle than it took to open Chambers 6-figure tables and look it up, as
I was reminded at our recent Open Day (we had a few such things on
display along with real computers, micros, and calculators).
Having said that, I was quite upset when my Sinclair Cambridge Memory
calculator began to misbehave a couple of years ago, and eventually
died altogether. It was a nicer shape and size than any other simple
calculator I've owned, great for one-handed operation. I have an
"ordinary" Sinclair Cambridge, and a Scientific as well, but they're
not as nice to use. The memory version seems to be relatively rare,
and the last two I saw on eBay went for moe than I'd consider sensible.
--
Pete Peter Turnbull
Network Manager
University of York
>From: "Scott Stevens" <chenmel at earthlink.net>
>
---snip---
>
>Who's going to win the SYM-1 up for bid on eBay right now, BTW?
>
>
>> Cheers,
>> Chuck
>>
>>
>
Hi
A lot of SYM-1's seem to be showing up lately. Most
with only the 2 2114's so I'd suspect that these are
mostly unused or little used( most anyone would want
the full complement of RAM ). There are a number of
nice software things available for these on the web,
including the ROM based BASIC.
I'm off and on trying to restore an even rarer item
connected with the SYM-1. I have a board called the
FDC-1. This was a floppy controller card for the SYM-1
( not made by Synertek ). I still don't know if the
software I got for the original OS is correct or not.
On Dallas' web page, he has a updated OS that is nice
but I'd like the klunky original OS.
The other item that is a little rare for the SYM-1's
is the KTM-2 keyboards/monitor driver. These were a
nice addition to the SYM-1. The KTM-2 came in a 40 and
80 column version. If you have the newer 40, it can be
upgraded to the 80 column.
Both of these items are rarer than the SYM-1 itself
and I've not seen either show up on ebay ( but I may
have miss them ).
Last but not least is the SYM-2. This is an newer
but reduced SYM-1 with an onboard regulator for +5.
Dwight
>
>Subject: Re: Discharging a VT100 CRT
> From: ard at p850ug1.demon.co.uk (Tony Duell)
> Date: Thu, 10 Nov 2005 19:55:37 +0000 (GMT)
> To: cctalk at classiccmp.org
>
>> CR408 is a 1A 400V diode (1n4006 should do)
>
>Is there any reaosn not to use a 1N4007 here as well? I generally don't
>buy the other IN400x's as I've yet to find an application where too high
>a PIV is a problem.
>
>-tony
That is true but I gave him the spec for the diode that was there.
As is the 4006 is a 600V device.
Hey around here anytime I need a 1A diode it's a 1N4007 as I buy
them 100 at a time cheap. They make good varactors an passable
HF low VHF PIN diodes.
Allison
>
>Subject: RE: Discharging a VT100 CRT
> From: "Julian Wolfe" <fireflyst at earthlink.net>
> Date: Thu, 10 Nov 2005 15:39:26 -0600
> To: "'General Discussion: On-Topic and Off-Topic Posts'" <cctalk at classiccmp.org>
>
>Are these two parts something I can buy at RS? I don't want to have to
>drive 20 miles to the nearest real component store if possible.
>
Well a 1n4007 at RS may still be possible, likely 2 for 1.99. I buy
them 500 for $15 from JDRmicrodevices. Can never have enough spares.
The cap I'd likely hunt around for a junk radio or computer monitor
chassis and pull it from there.
Allison
>>> CR408 is a 1A 400V diode (1n4006 should do)
>>
>>Is there any reaosn not to use a 1N4007 here as well? I generally don't
>>buy the other IN400x's as I've yet to find an application where too high
>>a PIV is a problem.
>>
>>-tony
>
>That is true but I gave him the spec for the diode that was there.
>As is the 4006 is a 600V device.
>
>Hey around here anytime I need a 1A diode it's a 1N4007 as I buy
>them 100 at a time cheap. They make good varactors an passable
>HF low VHF PIN diodes.
>
>Allison
>
found one in the trash. Am sure it isn't working,
though I haven't quite gotten it to the power-on
stage. Looking for *reasonably priced* ST (and this
could mean anything in that series) stuff in general,
working or not. Come to think of it, ain't even got
the mouse (I believe this one had an internal p/s and
floppy drive).
__________________________________
Yahoo! FareChase: Search multiple travel sites in one click.
http://farechase.yahoo.com
I finally got a drive select plug for my RL01 drive and would like to
try connecting it to my 11/73 but I find that the cable that is
supposed to plug into the RLV12 controller isn't keyed so it can go
in either way. How do I tell what the correct orientation is for this
cable? I'm assuming that if I plug it in backwards I'll fry the
controller and/or drive. The only markings on the end of the cable
that connects to the controller are the manufacturers name "Berg" and
the letters A and B near one end and VV and UU near the other end.
How should this cable be inserted into the RLV12?
Also, assuming I get this straightened out, what should expect to
happen on power up? Should the 11/73 automatically boot from the
RL01? I have an MXV11A boot board installed. Or do I get a console
prompt and have to select the boot device on the console?
Thanks,
David
Does anyone have any use for some Fujitsu MB8107 DRAM chips? From what I
can determine, these are the same as the TI TMS4060 4Kx1 "midi size" 22-pin
DIPs.
I've also got some Intel 2111-4 SRAM.
Cheers,
Chuck
