Does anyone one that I could borrow? FWIW, I've dumped the
firmware and microcode roms this morning
www.spies.com/aek/Tek4052A_fw.zip
I suspect a power supply problem, but it is quite different
>from the 4051 that I do have docs for (and have on line on
bitsavers)
The main boards are probably the same as the 4054.
Does anyone know where to get code for a truly free hit counter for your
website? All the ones I have found want to put ads on your page in return
for the code. Thanks
700 tubes! That's daunting. It took whole departments a year to assemble
machines like that, and with budgets. (Though they didnt have
gigasample/100MHz software scopes :-) I'm awed that he got that much
together.
I figure I can get 2500 instructions/second for 70 tubes, or 100 active
elements, not including the store (aka memory) which is just N x $ (eg.
how much memory can you afford?). Lots of silicon diodes (not cheating
at all, very 1958). 2500 not very good instructions, I might add.
Hi all,
The local scrap dealer has 4 11/34's available (two regular ones,
and two in Tektronix OEM mode, meaning, relabeled) which have a
bunch (I believe I saw 4) RK05-J's and a magtape unit that seems
to be a generic magtape (TU77?).
He also has a VAX 7000 there- given its size I didnt look at that
in any detail.. too big for me.
What would those PDPs be valued for? He'll scrap em for gold,
oviously. I dont need all the Tek programmable power supplies
and (readback) digital voltage meters crap, nor do I want or
need the two or three Tek color terminals (the greenish-silk
screen ones).
Anyone want any of the above? I would like an 11/34 with dual
RK05 out of it, and would hate to see it go to the melter..
Pse reply offlist for quickest response :)
(they're going to the melter tomorrow night..)
--f
--
Fred N. van Kempen, DEC (Digital Equipment Corporation) Collector/Archivist
Visit the VAXlab Project at http://VAXlab.pdp11.nl/
Visit the Archives at http://www.pdp11.nl/
Email: waltje(a)pdp11.nl BUSSUM, THE NETHERLANDS / Mountain View, CA, USA
Hello all:
Tonight I posted complete scans of the "KIM-1 User Notes" newsletter
(issues 0 to 17) and AIMInteractive (issues 3-8), courtesy of Jack Rubin.
Thank you Jack!
Also, just a quick update on the status of the Altair32 project. I'm about
90% there on a "v2.6" release of the emulator. There have been quite a few
changes, including some better graphics for the cassette/paper tape and line
printer, support for the 88ACR and 88-LPC/LPR devices, plus a host of other
changes that improve code execution speed. With the help of another
contributor, the source code is now compatible with the LCC-Win32 compiler.
Version 2.6 should be released by mid-March I would think.
Enjoy the KIM and AIM stuff.
Rich
Rich Cini
Collector of classic computers
Build Master for the Altair32 Emulation Project
Web site: http://highgate.comm.sfu.ca/~rcini/classiccmp/
/************************************************************/
Hi,
I came across the IEM 4430 4mm tape drive. This contains an HP DAT
1Gbyte SCSI tape drive and a conversion board that includes the external
HP-IB connector, the internal SCSI connector for the tape drive
and a connector for the operator panel.
The main PCB has 8 dip switches accessible from the back of the machine
and a couple of jumpers all over the place.
I figured out that three of the DIP switches are for HP-IB addressing,
but I wonder whether anybody has any info on that tape drive.
Specifically I wonder whether some switch combination can make the 4430
pretend to be some HP drive, so that it can be recognized by software
expecting a QIC-style tape drive.
Thanks
**vp
They had a HP 32sII and a HP 27S at the Goodwill today for $24.99 each. I
tried to talk the manager down on the price but no luck since this was the
first day out for both. So I got the 32 and left the 27. Now I'm downloading
the 396 page manual for it from hp's website.
Hi,
My ASR-33 has recently started to apply 20V pulses to my TX+ line. I
suspect something has gone south on the selector magnet driver board. Any
ideas on where to start looking?
Thanks!
Vince
Hi,
I was sorting through my stack of IBM XTs & ATs when I saw what I thought
was condensation on the case of an AT. Strange I thought I hope that's not
rain water (being indoors!) I opened up the case and was dismayed to fine
the remains of a back-up battery and a large puddle of horrid looking gunk
eating a hole through the steel case. Turned out the previous owner had put
a cheap back-up alkaline battery in place of an expensive lithium battery,
although the sealed plastic box they came in made no mention of possible
leakage. Anyway I cleaned it all out and made a mental note to check my BBC
Master's didn't have any batteries left in them either.
Just a word to the wise, I'm sure most of you are thinking 'been there, done
that'!
Regards,
John
This is creepy.
--
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
[ Old computing resources for business || Buy/Sell/Trade Vintage Computers ]
[ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]
