Memorex was the first independent disk pack manufacturer, beating Caelus by
several months. The decoder ring for you IBM types
1316: Mark I (2311)
2316: Mark VI (2314)
3336: Mark X (3330)
3336-11: Mark XI (3330-11)
3348 Data Module: Data Mark
I don't think Telex was first in any disk area, first PCM tape subsystems
Memorex was first to ship a 2311 PCM and OEM and the first to ship a 2314
OEM. ISS probably beat Memorex on a 2314 PCM and I don't have a clue as to
Of course the first OEM disk drive company was Bryant.
> Message: 1
> Date: Mon, 1 Aug 2011 13:25:13 -0400
> From: "Shoppa, Tim" <tshoppa at wmata.com>
> To: "cctalk at classiccmp.org" <cctalk at classiccmp.org>
> Subject: Re: Looking for old Memorex gear
> <B136EDE3DF5EC441B6F08E0A7AB872450DCB139586 at EX2K7-CMS-1.wmata.local>
> Content-Type: text/plain; charset="us-ascii"
> > 3) Mark I, V, VI, X or XI disk packs
> I'm not familiar with those model names but I suspect I might know them as
> a "Memorex brand 2315 cartridge" or "Memorex brand 3330 pack" or similar.
> Was Memorex the first maker of IBM-compatible packs? Where did Caelus come
> in the scheme?
> For a while in the mid-2000's there was a Memorex brand USB keychain
> drive, which I swear was styled to look exactly like a miniature little
> disk pack. Not a very efficient of pocket space but wow, did it look like
> an old disk pack :-).
> > 4) A Data Mark module
> Help refresh my memory... Data Mark was Memorex's version of the IBM 3348?
> Head and positioner inside the cartridge?
> Message: 2
> Date: Mon, 01 Aug 2011 10:56:16 -0700
> From: "Chuck Guzis" <cclist at sydex.com>
> To: "General Discussion: On-Topic and Off-Topic Posts"
> <cctalk at classiccmp.org>
> Subject: Re: Looking for old Memorex gear
> Message-ID: <4E368650.17242.93B3F3 at cclist.sydex.com>
> Content-Type: text/plain; charset=US-ASCII
> On 1 Aug 2011 at 13:25, Shoppa, Tim wrote:
> > Was Memorex the first maker of IBM-compatible packs? Where did Caelus
> > come in the scheme?
> Would perhaps Telex be the first, at least for the 3330 disk drives?
Page 7-24 in TI 1971 set:
Expander gates will be about as clear as mud in the modern logic diagram sense if you look at a single chip. Make sure to look up the 74H60 or 74H62 which is the "other half".
There was an early 70's TI TTL book (not so much databook but more of a cookbook/how-to book) aimed towards college students or guys new to TTL that illustrated expander gates in useful ways. By the 80's there are still pages in the TI databooks for the expander gates but you'd be stumped trying to decode them.
I am in the process of adding a TMA-11 tape controller with a TS03
tape drive to my PDP-11/10 system
which has a single RK05 drive attached. There no other devices attached.
I removed the Unibus terminator out of the RK05 and connected the BC11
cable in it's place. The cable
then goes to the TMA-11 controller. The TMA-11 controller does have a
terminator as well (ie. it is the
end of the Unibus).
Previously, the PDP-11/10 and RK05 worked as expected.
Now that the TMA-11 controller is connected, the RK05 drive does not
spin up. When the 'Load' button is
pressed on the RK05, I do hear the door lock solenoid engage, but the
drive spin up. If the system is
powered down and the cable to the TMA-11 is disconnected, the drive
does spin up.
Any ideas on why the RK05 would refuse to spin up when connected to
the TMA-11? I am just looking
for some pointers to narrow my search.
I have reached a point where I must dissolve my collection.
I have just reached this decision, so this email is providing a head's up as it were. It seems so many people reach this point then have to get rid of their collection within the next n (where n is <10) days.....
I am in the process of making an inventory, but basically I have the following;
System 1. VAX 400VLC, 26in? Color monitor, external storage and CD w/caddy
System 2. VAX 3100-10 with Evans and Sutherland PS390 Includes connection to VAX, Evans and Sutherland Monitor, button box, Keyboard, Stereographic glasses and software.
System 3. PDP 11/23 in a pedestal enclosure
System 4. VAX 6000-440; contains 4 RA90 drives, two internal to the cabinet and 2 spare, integral infoserver and several CD drives and a TU81+ tape transport. OpenVMS 6.0 Con Dist.
And the system that got me started in this hobby,
System 5. PDP 11/23+ DECDatasystem Two Cabinet wide 19"Rack form factor; processor has been upgraded to 11/73. 3 Drives; 2 operational, one standby.
2X RD52 and a RD53. TSV05 tape transport & 2X RL02 Drives. I have numerous terminals for this system, Two Tek Graphics Terminals, a few VT type and an LA100. This system was used as a basis for developing micro controllers, to that end this system also comes with a secondary chassis, two LSI 11 Falcon boards, in the original packaging, a Mentec M90 (I think) PDP on a board, the original 11/23+ processor and several other modules. The software as I recall is RSX-11M-PLUS (V?), FORTRAN & BASIC Also comes with MicroPower Pascal for driving the external Microprocessors. The software comes complete with Licenses, about 10 to 15 RL02 disks, loads of tape and an Orange wall of Documentation. I also have a Qbus ESDI card and Drive, but have not installed those.
I am Loathe to let these systems go. But I cannot keep them. I am offering them to the list first in the hope someone will keep them alive and continue to use them. I will be taking an inventory soon and will post that as I make my way through everything. Items are for local pick up only (Madison, WI). I am looking for Donations for this equipment, which, given how unusual some of them are, I think is warranted.
If you are interested, please drop me a line at briandotcdotmichellatgmaildotcom Thanks for reading.
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> I ran across mention of the Gould Quadrabyte processor in a ca. 1980
> magazine product annoucement.
> Does anyone know what CPU was used in these?
I thought it was a boardset with a gate-array+bitslice+STTL CPU that came when Gould bought S.E.L.. i.e. not a single chip CPU.
But... 1980 is before Gould bought S.E.L. right? So maybe I'm mixing things up. I don't think it was a mini-SEL-32 (I asked about this once in the 80's!)