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Subject: Re: Wanted: Manual/circuits for Tek 453A scope

Date: 04/12/00 at 1:29 PM
Posted by: Dean Huster
E-mail: dhuster@pb.k12.mo.us
Message Posted:

In Reply to: Wanted: Manual/circuits for Tek 453A scope posted by Peter Johnson on 04/10/00 at 8:41 AM:

Hi, Peter,

Congratulations on owning the longest-lived model Tektronix scope ever. Back then, Tek normally supported an instrument for 12 years after it was dropped from production, but the 453/453A was so popular that they extended that support period for another 4 years or so.

Here's a lot of sources for used test equipment manuals:

http://www.agtannenbaum.com
http://manualsplus.com
http://w7fg.com/manuals.txt
http://ac6v.com/pageaae.html

There may be a schematic source online at these sources:

http://bama.sbc.edu/
http://fissell.com/billinterests.html

A couple of sites that list manual sources are at:

http://www.repairfaq.org/repair/f_manuals.html
http://gama.inesc.pt/public/info/repair/f_manuals.html


And not on the WWW is:

Ed Matsuda
POB 390613
San Diego CA 92149 USA
619-479-0225 (voice) 619-479-1670 (fax)

There's a site in your neck of the woods (well, across the Channel anyway) devoted to the older Tek instruments they're at:

http://margo.student.utwente.nl/~wel/tek.htm


As I recall, there are still a couple of ceramic strips used in the 453A, probably around the HV area. You MUST use silver-bearing solder on these strips (Sn62/Pb36/Ag2 -- sometimes Ag3). Conventional 60/40 or 63/37 solder will leech the silver from the strips and wreck them.

Good luck with your repair!

Dean


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