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I would also be interested in
R Allred

Very nice piece of tektronix history. Thanks to both of you.

A photograph that was used for the cover of EDN magazine was posted to the Tek wiki site today. The photograph was published in November 1982 to support the introduction of the 7D20 and to reinforce the modularity of 7000 series. I apologize for the color balance. The photograph was badly faded to orange. I made a color correction but with my yellow cataract vision, I over emphasized the blue.

Thank you Kurt R. for posting the photograph.

Yes, I am interested to pitch in for one such extender board. I have a few 500 plug-ins that need attention. I have the 067-0645-02. Easy access to all connector lines, voltage and current, is a fine idea. Please let me know a cost, assuming others may be inclined to benefit from your work.

Thanks Eric. For some reason the p/n and supplier is missing in my paper manual.
Great info and thanks for the contact. I've sent the ebay chap an offer.
Nick
G0WEF

Hello Nick,

The TEK reference of the switchs is 119-1161-01 ( DYNATECH FSCM 50667 - Mod 03 - 412C002 )

There is one for sale on Ebay :



Best regards
Eric

Hi.
Has anyone got an sma coax transfer switch for a 49x series SA. There are up to 3 in each unit depending on what options are fitted. Switches S11, 12 and 13. As far as I can tell they are all the same so any will do.
All the best
Nick

I remember some old HP equipment had handles like that, where I used to work had new ones still shrink wrapped, that was years ago

--I have designed a Male to Female Extender Card designed to install between a flexible Extender cable (067-0645-02) and the Plug-in being tested.
It uses a 4-pin, 0.1" pitch header on each line jumpered between pins 2 and 3 to connect through, but removable to measure current. etc. With the jumper installed pins 1 and 4 are available as test points on the line. The board is 2.5" long not including Female connector, and 4.5 inches wide to accommodate the 28-position Female connector and PCB edge fingers
It will have 4 slots between the fingers in the standard keying locations for the TM500 series modules.
The cost to make the board properly with hard gold over nickel fingers is more than I want to spend for the 2 boards I need ($300). If anyone else is interested in a well made pcb like this let me know. I used Sullin for my Female connector -- they are excellent.
Steve

Ryan,

Please post a list of what she has available!!! Esp if close to Portland.

My daughter is there and can pick up for me!!??

On 2/13/25 22:14, Ozan wrote:

Hot glue worked well for the repair I did. In case they got damaged while trying to remove the bezel: you don't need to pull out the knobs, they slide off with the bezel.

Thanks for the suggestions. Since parts of what hold the knobs are now gone, I'm going to try hot glue.
If it is wobbly afterwards, I can reheat and try centering again until good. Good to know about the bezel -- these knobs never need to come off unless damaged.

On Thu, Feb 13, 2025 at 08:54 PM, John Griessen wrote:

I had one cracked knob on a 2465, so I pulled another to be able to use that
pot, and the pulled one lost most of its spring clip
that keeps it on the shaft of the pot.

What methods are known to work well for using knobs like in my photo that have
lost some of their spring clip parts?

Hot glue worked well for the repair I did. In case they got damaged while trying to remove the bezel: you don't need to pull out the knobs, they slide off with the bezel. See the link below for pictures.

/g/TekScopes/album?id=259435

Ozan

Less permanently RTV-748 is electrical grade and soft enough that you
can pry it off if need be but still thick enough to prevent air from
flowing so you get a suction cup with a thin film of it.

On Thu, Feb 13, 2025 at 11:54?PM John Griessen via groups.io
<john@...> wrote:

I had one cracked knob on a 2465, so I pulled another to be able to use that pot, and the pulled one lost most of its spring clip
that keeps it on the shaft of the pot.

What methods are known to work well for using knobs like in my photo that have lost some of their spring clip parts?

Does epoxy putty help a knob stay on? Does epoxy putty work too well and never come off?

Personally I recommend ultra low melt temp hot glue. It works well to stick it on, but if you need to remove it you can use a heat gun on low setting to warm up the knob and soften the adhesive to remove it.

It can be a little messy and perhaps too "permanent" for some people.

Benjamin

Hi John,

Are you sure they are pushed all the way on?

-Evan

On Thu, Feb 13, 2025 at 11:54?PM John Griessen via groups.io
<john@...> wrote:

I had one cracked knob on a 2465, so I pulled another to be able to use that pot, and the pulled one lost most of its spring clip
that keeps it on the shaft of the pot.

What methods are known to work well for using knobs like in my photo that have lost some of their spring clip parts?

Does epoxy putty help a knob stay on? Does epoxy putty work too well and never come off?

I had one cracked knob on a 2465, so I pulled another to be able to use that pot, and the pulled one lost most of its spring clip that keeps it on the shaft of the pot.

What methods are known to work well for using knobs like in my photo that have lost some of their spring clip parts?

Does epoxy putty help a knob stay on? Does epoxy putty work too well and never come off?

Yeah, I noticed as a kid that the colas etched my teeth. Even then, probably 55 years ago, I knew that wasn’t good!

Jim

On 2/13/25 12:40, Roy J. Tellason, Sr. via groups.io wrote:

If you can find a person or company that does this kind of work a custom leather handle would look nice on the TM.

Hmm, there being a lot of Amish around here that's a distinct possibility...

I'm not Amish, but maybe I could be?






I re-handled this ancient kennedy toolkit 15 years ago with a sewing awl. Feels good to carry.
Made like the 1930s 1940s original... this kit is for antique house repairs.

I have lots of kits... :-)

Also look into "gun bluing" for rustproofing. I have seen many equipment handle core/spring things with that characteristic deep blue color.

Ed

AFAIK, no, though Naval Jelly is another alternative, although messier.

The key with Ospho is that it converts iron oxide to iron phosphate and
thus prevents further rusting.

One can find it in local hardware stores or on Amazon.

DaveD
KC0WJN


On Thu, Feb 13, 2025 at 15:21 Jim Ford via groups.io <james.ford=
[email protected]> wrote:

Say, is that Ospho the same as Naval Jelly? ISTR that NJ was some kind
of acid.

Jim Ford
Laguna Hills, California, USA

On Feb 13, 2025, at 11:57?AM, Dave Daniel via groups.io <kc0wjn=

[email protected]> wrote:

?Also, for the rusty metal strap, there is a product named "Ospho" (a
phosphoric acid solution) that changes iron oxide into iron phosphate and
stops the iron oxidation process. One removes the loose rust and applies
Ospho and then, once the reaction is complete, cleans off the item.

DaveD
KC0WJN

On Thu, Feb 13, 2025 at 14:33 Roy J. Tellason, Sr. via groups.io <roy=
[email protected]> wrote:

On Thursday 13 February 2025 12:44:51 pm Greg Muir via groups.io

wrote:

Most of my handle replacements have been with the older HP equipment

such as that found the 200CD oscillator which is a leather type. I have
had good success taking a badly deteriorated handle to the local saddle
shop who specializes in leather work. They fabricate handles that are
exact duplicates of the HP ones and even stain them the right colors.

If you can find a person or company that does this kind of work a

custom

leather handle would look nice on the TM.

Hmm, there being a lot of amish around here that's a distinct
possibility...

I have a 5xx (can't recall the exact number) sitting out in the garage
with the same issue. Someone did send me another of that metal strip

that

runs up the middle of the top of the scope, but it wasn't the right

size

to fit on there, so I passed it along to somebody who could use it.

Gonna have to look around for somebody who works leather.

--
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space, a critter that can
be killed but can't be tamed. --Robert A. Heinlein, "The Puppet

Masters"

-
Information is more dangerous than cannon to a society ruled by lies.
--James
M Dakin