FWIW:

I bought a service manual from  http://www.w7fg.com for my Tek 465. The
quality and service were both excellent. He even copies the big fold-out
schematics onto large pages and folds them in the copy, just like in the
original.

Bob Ammerman
RAm Systems



>
> This fellow makes a business of providing copies of manuals. He is not
> cheap, but I have found the quality and service to be good. He lists your
> manual at $58. The calipers show my copy to be 0.9 inches thick.
>
> Having said that, please verify that the horizontal controls are really
set
> up to sweep. There are many settings that will not show a trace without
some
> specific input conditions.
>
>
> John Ferrell
> 6241 Phillippi Rd
> Julian NC 27283
> Phone: (336)685-9606
> Dixie Competition Products
> NSRCA 479 AMA 4190  W8CCW
> "My Competition is Not My Enemy"
>
>
>
> ----- Original Message -----
> From: "Vit" <piclist2001@HOTMAIL.COM>
> To: <PICLIST@MITVMA.MIT.EDU>
> Sent: Sunday, February 10, 2002 1:10 AM
> Subject: [OT]: Tektronics 475A Repair Manual/Tips (no horizontal
deflection)
>
>
> Hello everyone,
>
> Until last night, my experience with the used Tektronics 475A oscilloscope
I
> recently bought on eBay had been only positive.  But yesterday, when I
> powered it on, the whole screen lighted up, then started blinking at a
rate
> of about 1Hz.  I've never seen it do anything like that before, so I tried
> adjusting the knobs.  For about five seconds, there was a diagonal line
> going across the screen, then it went blank.
>
> I turned off the instrument, let it sit for a few minutes, then powered it
> back on.  A dot appeared in the center of the screen, and it stayed that
way
> since.  When a signal is applied, you can see a vertical line whose
lenghth
> is proportional to the amplitude of the signal.
>
> Tektronics discontinued this model in 1985, and I couldn't find any
> information about the scope on their website, except that it had now been
> replaced by the TDS380.  Searching the web produced no results either.
>
> I know that Dale and a few other people owned (or still own) the 475A
model.
> Can you guys give me some pointers on where to start?  I don't feel
> comfortable getting inside the scope without some kind of plan..
>
> Sincerely,
>
> Vitaliy
>
> P.S. There is a *possibility* that the scope suffered some thermal damage,
> because I accidentally covered up the ventilator hole in the back of the
> oscilloscope..
>
> --
> http://www.piclist.com hint: To leave the PICList
> mailto:piclist-unsubscribe-request@mitvma.mit.edu
>
> --
> http://www.piclist.com hint: To leave the PICList
> mailto:piclist-unsubscribe-request@mitvma.mit.edu
>
>

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads