Hi Bill,
I don't have a 33, but I like to speculate based on limited last
century experience with a 33.
The punch just operates from the same code bars the printer does. So they should do the same thing unless there is a specific issue internal to one or the other after the code bars.
You say you have two 33s, have you connected them to where they talk to each other? I would think that would help isolate the problem. I forget, is the UCC6 the private line version or Telex? If Telex that becomes complicated, I guess.
The reader is more independent from the keyboard than the punch
if from the printer. Do you get same results from both assuming a
good tape? If so then I think that points to the printer, and I'd
lean towards a selector area problem.
Is it a random problem or constant? If you type alternating SG (I think that's the ASCII equivalent to RYs)
Perhaps you've gotten the same from direct emails, but I thought
I'd throw them out anyhow. Some times my rambling triggers an
idea in someone else that's useful.
--- ---- You said "tomorrow" yesterday. The above comments or recommendations are SWAG. Use at your own risk. John, W9DDD
Hi all - A while back I wrote about an ASR33 with a printer issue and I am still working to resolve. The symptom is that 5th and the 8th "channel" are always punched or printed, vs. what was intended to be typed). When I punch two papertapes from one good teletype and the problem teletype, I can overlay the tapes to see what's happening. A tape of each key on the keyboard in succession (QWERTY...) shows the effect.
I can use a screwdriver to hold in place to "block" the associated 5th bar that is misfiring and in doing so I can get the linefeed character to print / punch correctly. That trick does not fix all problems though.
It appears that what's sent to the printer is the same incorrect codes.
I have carefully removed the printer from the chassis to inspect the underside of the printer. I have compared and contrasted with a working teletype. I did not see any obviously misaligned springs or bars. It's a pretty clean machine too. I have swapped the UCC-6's with no effect. I have verified mykeyboard against the photos Wayne sent me to verify that the keyboard was ok - At least the thin metal pins are all in line. I have disconnected the reader to eliminate this variable.
I read the suggestions from the last time I asked about this machine but none lead to a solution. There could be a weak spring or a stuck metal bar or a code bar out of place I did not notice. Not easy.
I recognize that I will need to continue to drill down into the machine and as I have time I will keep working on it on this end, but I thought I'd at least report my progress because I got a few replies to my initial inquiry this past summer. If there a spot on the teletype that I could photograph to help one of you help me diagnose the cause of this problem I would be happy to post them someplace.
Thanks and best wishes.
Bill Degnankennettclassic.com
Kennett Square, PA
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