Can someone tell me what voltage and current are used for the power
supply on the Timex Sinclair 2068? Also what is the tip polarity?
--Alan
--
Computing since: 1982, VIC-20, CoCo, PC, CP/M
Military Computers: COMTRAN 10, Nida 250
Amateur Radio since: 1971, WN8JEF, KA6EXR, N8BGR, AA4ZI
BASIC, dBASE, Assembly, C++
http://www.bright.net/~oajones
I'm searching for any info on the following two Q-Bus controller boards:
Dilog DQ614 rev. N RL01/02 Emulation using MFM disks
Dilog DQ615 rev. B RK06/07 Emulation using MFM disks
I was able to find a procedure using DejaNews for setting up a DQ614K, it
looks like I can't do much of anything without a floppy, is there any way
to get one still, and is it really needed? I'm also trying to figure out
exactly what these boards will accept for drives.
Zane
| Zane H. Healy | UNIX Systems Adminstrator |
| healyzh(a)ix.netcom.com (primary) | Linux Enthusiast |
| healyzh(a)holonet.net (alternate) | Classic Computer Collector |
+----------------------------------+----------------------------+
| Empire of the Petal Throne and Traveller Role Playing, |
| and Zane's Computer Museum. |
| http://www.dragonfire.net/~healyzh/ |
(and I'm just down the road from Allison, also in Framingham)...
You could try Eli's (formerly Eli Heffron) in cambridge...
They've had lots of dec stuff in the past, and in fact I've
gotten some of my stuff (a BA23) from them...
They have LOTS of 'junk'...
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com |
| Unix Support Engineering Group | (home): mbg!world.std.com |
| Compaq Computer Corporation | addresses need '@' in place of '!' |
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| Nashua, NH 03062 | "pdp-11 programmer - some assembler |
| (603) 884 1055 | required." - mbg |
+--------------------------------+-------------------------------------+
On Fri, 25 Sep 1998 12:44:40 -0400 Christian Fandt <cfandt(a)servtech.com>
writes:
>number. It is a Vertex Peripherals model V185 hung off a 3rd-party
>controller designated as "UDC11". What can anybody tell me about that
>Vertex product? Equivalent RD- number? Durability? Etc.?
I remember the V-185 well. They were used by 3Com in their 3server70,
and 3Server3 line of file servers. They were made by Vertex, who later
became a division of Priam. They are tough, reliable drives, as long
as they work. When they break, they tend to totally self-destruct.
They are also RLL-Rated, one of the few 'stock' drives (that I know of)
that didn't require a design change for this capability.
I have no idea what the RD- designation would be, but I can tell you
it's geometry is 1166cyl x 7h x 17s for mfm or 28spt for RLL.
They're good drives. They're also rather scarce.
Jeff
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< > I hope you don't send me any mail or post any messages from your
< >earthlink address. I've gotten tons of SPAM from earthlink and they're
< >permanent part of my SPAM filters now.
<
< I find this all rather disturbing. What am I supposed to do if I want t
< get in contact with one of you guys who is blocking email from earthlink
< Surely not use Hotmail or my AOL account!
Unfortunatly the spammers are address spoofing earthlink and earthlink
customers suffer. It was a matter of practical necessity as most of the
spammer were faking the earthink address and there were far to many
different addresses of the spammers... simplest path.
Allison
This isn't really classic, but since the Newton is out of production,
I thought someone might be interested in a shrinkwrapped modem for
the Newton for $8 at a thrift store. I think it might get hard to get
one from Apple...
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If it is something shutting down, could be a paperclip or something.
>
>>
>> While we're on monitor repair:
>> I picked up an IBM PS/1 SVGA which when turned on flashes a normal
>> screen for less than a second, which collapses and then displays a
slowly
>> degrading squiggly vertical line which gradually shortens and blanks.
>
>A MDA monitor does something like that on switch-off, but then that CRT
>has a rediculously long persistance phosphor...
>
>Do just check that it's not the main PSU shutting down (and leaving the
>monitor to run on the charge in some of the caps). Does the power-on
lamp
>remain on, for example (if there is one). What about the CRT heater?
>
>My guess is that the horizontal output stage is shutting down (but the
>EHT is staying up for some reason). Assuming that they are separate,
I'd
>start by looking at the horizontal driver and output stages, their
>operating voltages, etc
>
>Alas I don't have schematics for any IBM monitor apart from the first 3
>(5151, 5153, 5154).
>
>-tony
>
>
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< apulo1(a)earthlink.net
< and
< workapulo(a)my-dejanews.com
<
< I dont use the dejanews account much, mostly just to read my popmail (fr
that;s a shame as I had to out earthlink.com in my spam filter due to the
large number of spam using that address.
Allison
