I've picked up several of GS models in a bunch of surplus. Is anyone familar with them? I'm wondering if you HAVE to use Ricochet's network or if they can be set up to work peer to peer.
Joe
>From: "O. Warren" <ocwarren(a)burgoyne.com>
>To: <greenkeys(a)mailman.qth.net>
>Subject: [GreenKeys] Line feed on a 33ASR
>Date: Sun, 20 Oct 2002 08:34:35 -0600
>
>Hi...
>
>About line feed on a 33ASR..
>
>I'm a retired Western Union Field Service Technician, and we used these
>33ASR's with internal data sets (modems) as TWX machines. They also made a
>good low speed pre Internet on-line terminal.
>
>>From what I remember, the line feed prowl was a concentric adjustment on the
>left side of the platen.
>
>>From the message I read, the selector part is the problem. Typically first
>check that the selection is working with a test of blanks and rub outs, or a
>string of *'s and U's. This will test for machine reversals. Then check
>the line feed selection. Look for lack of oil, then weak or missing
>springs, misarranged levers, etc..
>
>Then oil. Dirt on the distributor and keyboard contacts and lack of oil
>will kill the machine. The proper oil is in between 30 weight motor oil and
>3 in 1 oil. Sears Roebuck used to sell what they termed "air conditioner
>oil", which was almost an exact replacement for "Teletype oil", and also in
>a squeeze bottle. Be sure that someone didn't use grease instead of oil and
>"gooey" the mechanism up!!
>
>Your machine is a good teaching tool. Watch the selector mechanism work in
>reversals and then the lined feed mechanism operate. whatever the problem,
>it will become apparent..
>
>Best,
>
>Dick Warren
>ocwarren(a)burgoyne.com
>
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>GreenKeys(a)mailman.qth.net
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>
>
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>From: "Jack" <wa2hwj(a)worldnet.att.net>
>To: <greenkeys(a)mailman.qth.net>
>Subject: Re: [GreenKeys] Line feed on a 33ASR
>Date: Sun, 20 Oct 2002 10:50:20 -0400
>
>Of all the aggravating adjustments on the 33, the line feed
>gets the award! Later machines had a much more refined
>mechanism, but the older and probably more plentiful models
>required a lot of cussing, swearing and a little adjusting.
>The line feed pawl that actually moves the platen sometimes wears.
>
>After making sure your machine is in good operating shape by
>sending the reversals (U*U*U*U*) and making sure the
>selector is working correctly, watch to see if the pawl
>tries to advance the platen every time you send it a
>LINE FEED character. If it seems to miss sometimes and only
>feed halfway other times, then that's what you need to
>fiddle with...
>
>Jack WA2HWJ
>
>NNNN
>
>
>
>
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>GreenKeys mailing list
>GreenKeys(a)mailman.qth.net
>http://mailman.qth.net/mailman/listinfo/greenkeys
>
>
;-----------------------------------------------------------
; vaux electronics, inc. 480-354-5556
; http://www.vauxelectronics.com (fax: 480-354-5558)
;-----------------------------------------------------------
On Oct 19, 11:36, Fred Cisin (XenoSoft) wrote:
> > Who remembers drawing a cross or a diagonal line on the top of the card
> > deck, so you had some chance of re-ordering the deck
> Depended a lot on how often it would be changed.
> On a deck that would be changed OFTEN, you put ONE diagonal. Next time
> that it changed significantly, you'd put a second diagonal. By the time
> that you had a dozen different colors and directions of diagonals, that
> deck would be overdue to be recopied to have nice fresh crisp cards.
We rarely did that. We did use diagonal line(s) to see if a deck needed
sorted; if it wasn't too big then the line was usually enough.
> At many locations, different colors of cards had special meanings. When
I
> was working at Goddard Space Flight Center, I did not have appropriate
> clearance for handling some of the colors of cards that I was working
> with.
Yes, I can't remember all the colours except that blue was usually JCL.
> > > Who remembers using a folded card (16 thou) to check the points on
their
> > > engine (nominally 15 thou)? Folded in three to check the spark plug
gap
> > > (nominally 25 thou)??
>
> And what did you use for adjusting your valves? (~ .006) Zig-zags?
No, anything more serious than a quick sanity check merited a real feeler
gauge :-)
--
Pete Peter Turnbull
Network Manager
University of York
I was quickly corrected regarding the cables I mentioned earlier.
They are DB-19 to 20-pin header (keyed), apparently an
interface cable to the UniDisk drive.
I also have several ribbon cables for the older style floppy drives.
Also, I just located three Apple IIe emulation cards for the Mac LC
series.
These are just the cards, part number 820-0444-A. They're in
anti-static
bags but not sealed.
Cheers,
Dan
http://www.decodesystems.com/wanted.html
Ethan Dicks said:
> If they can take it, you'd need a DWBUA on a VAXBI bus (there is no
> Unibus adapter for XMI). ISTR when the 6000 was current that DEC
> imposed a limit on how fast a machine could take a DWBUA, not to
> screw the customer, but because some of the (then) newer machines
> had so many layers between the Unibus peripherals and memory that
> timings could not be maintained.
I am aware of an application that used a Unibus on a VAX 6520. The
system would occasionally spontaneously crash; it looked to me like
the UNIBUS adapter was getting wedged. Rumor has it they fixed it
with a microcode upgrade to the DWBUA, but I doubt that microcode
was ever made generally available.
--
Roger Ivie
ivie(a)cc.usu.edu
I had this half-linefeed problem on my ASR-33 when I first rescued it
>from the Barn. After a few nights of careful study (watching the
mechanism at work) I decided that the spring on the ratchet device was
stretched to the point of not being springy any more. I replaced it
with another (from a carburater rebuild kit, as I recall) and it has
worked fine ever since.
>Does anyone have the schematics for the VT52 ?
>Or a hint where I should start looking for common errors ?
You can start at http://www.vt100.net
You'll find a maintenance guide and a pocket service
guide at the very least.
Antonio
