[GreenKeys] OT: Need help to T-Shoot this Tek 485 scope -- AND OTHER OFF-TOPIC POSTS

[drlegendre .]

Howdy Gil, greetings All,

Thanks for clarifying policy. Like most of these tightly-focused, crusty OM
lists, I'd like to think they are largely self-regulating, with GK being no
exception. Everything you said made perfect sense, at least to me.

While I did assume that Tek 485 was of sufficient general interest, I was
mostly just trying to tread lightly, when I suggested off-list replies.
Discretion the better part of valor and all that.

Thanks again for all you do, and to the membership at large - the GK list
is a great resource. Without this list, I'm not sure I'd ever have even
entertained owning and operating something as old and esoteric as a
mechanical TTY. And what a joy this has been, how many amazing people have
I met? Enriching is one word that comes to mind.

-Bill

On Fri, May 12, 2017 at 12:06 AM, Gil Smith <gil at baudot.net> wrote:

> Greenkeys:
>
> This thread is only mildly-OT, imho, and is a useful read so far. If a
> topic gets to 5 or 10 posts per day for a while, with only a few posters,
> then maybe that topic should be taken off-list, but it is a difficult call.
>
> Yes, if something is really off-topic, and only a few folks are
> interested, you should take it off-list.  If there are some read-only
> lurkers that were following the topic, well they can then contact the OP
> and just converse off-line.
>
> I leave it to you gents and ladies to decide that threshold.  We mostly
> have a feel for the technical breadth of the people on greenkeys, and
> generally can differentiate between normal and very-specialized topics.
>
> If the topic is not tty-related (like the current scope repair
> discussion), but probably of interest to us aging nerds on the list, keep
> it public so anyone interested can benefit.  If it gets to be a
> distraction, we will let you know.
>
> As always, off-topic posts are welcome on greenkeys -- we all learn a lot
> from (most of) them.
>
> thx, gil
>
>
> gil smith, AF7EZ
> greenkeys moderator
> gil at baudot.net
>
>
> -------- Original Message --------
> Subject: Re: [GreenKeys] OT: Need help to T-Shoot this Tek 485 scope
> From: Raymond Cote <bluegrassdakine at hotmail.com>
> Date: Wed, May 10, 2017 10:39 am
> To: Gil Smith <gil at baudot.net>
> Cc: "drlegendre ." <drlegendre at gmail.com>, Green Keys
> <GreenKeys at mailman.qth.net>
>
> Replies ON LIST would be preferred. I suspect we would all prefer to learn
> by other technicians methods. Replying only to the originator does not help
> the trst of us learn.
> There have been many messages that i have been interested in learning
> about only to see a message that states "thanks for the help in solving my
> problem".
>
> Please, OM's. Consider sharing you methods of tracking and applying your
> fixes with the rest if us. Many if us are hoarders (collectors) and have a
> plethora if gear that trouble shooting practices of one item would apply to
> other gear
>
> Thanks fir reading and joining this method if teaching us
>
> Bench technician for 50plus years and have a commercial radio phone snd
> general ham ticket. Every time i open up something to investigate its
> innards, i still learn  something new.
>
> Ray Côté
> KD9CCZ
>
> Sent using Jedi Mind Trick!!
> By
> Raymond Côté
> KD9CCZ
>
> On May 9, 2017, at 00:58, Gil Smith <gil at baudot.net> wrote:
>
> I found a wealth of info on tek scope repair on a yahoo group:
> https://groups.yahoo.com/neo/groups/TekScopes/info
>
> Yahoo groups is a pain, but that is where they are.  I found lots of folks
> to help when I wanted to re-cap my trusty 300 MHz 2465 and 150 Mhz 2445.  I
> started with the 2445.  I replaced all of the caps with new/better spec
> units.  When I got it back together, the trace had some jittering that was
> not there originally.  F-me.  Also, the power switch was now stuck in the
> on position, so I need to plug the power cord in to turn it on.  Very
> disappointing outcome for a couple of days of work, plus parts cost.  I am
> really pretty careful/anal and not generally a hack, but I guess I missed
> something.  I bought a replacement power switch for the 2445, but I really
> have no interest in spending hours to do the R&R.
>
> As for my prized 300 MHz 2465, I now have no interest in screwing with it,
> as it still works perfectly.  It has great resolution for seeing things
> like undershoot, which my DSOs cannot resolve.  If it craps out some day, I
> will re-visit the re-cap (I have the bag of parts), but my original plan to
> re-cap is on hold unless needed.
>
> fyi, gil
>
>
> gil smith, AF7EZ
> greenkeys moderator
> gil at baudot.net
>
>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/greenkeys/attachments/20170513/2f9660c0/attachment.html>