Date   

Re: vintageTEK museum releases Replaceable Parts Registry (RPR)

Dave Brown
 

These documents were on microfiche because they were sent to the field offices and they required compact storage. Eventually microfiche was phased out by digital documents, probably by the mid 1990s. I don't know exactly when. We have some sections of a later RPR but it is not complete and doesn't cover any of the desired part numbers. 1986 is as late as we have at the museum currently.

Dave


Re: Tek 2782 Schematics Uploaded to KO4BB

John Miles
 

-----Original Message-----
From: TekScopes@groups.io [mailto:TekScopes@groups.io] On Behalf Of
Bob Koller via Groups.Io
Sent: Friday, January 04, 2019 2:22 PM
To: TekScopes@groups.io
Subject: [TekScopes] Tek 2782 Schematics Uploaded to KO4BB

FYI, I have just uploaded the schematics for the Tek 2782 spectrum analyzer
to KO4BB. It may be awhile until they are posted.
These are scans from the 11"X17" set I have, sorry I don't have anything else.

Enjoy!
Thanks for the upload, Bob. I have been hoping someone would come up with these!

-- john, KE5FX


Re: Tek Probe Cables free to a good home

 

Hi Dave,

I looked in the detailed index of the 175-xxxx-xx section of my 1988 edition
of the Common Parts Design Catalog 6: Wire, Insulation, and Power Supplies.

None of them were listed!
What are the odds of that happening?

At least two of them are recent numbers so I would think they can't be
obsolete.
They are definitely Probe cables so I thought for sure they would be there.

Dennis Tillman W7PF

-----Original Message-----
From: TekScopes@groups.io [mailto:TekScopes@groups.io] On Behalf Of
Artekmedia
Sent: Saturday, January 19, 2019 3:25 PM
Subject: Re: [TekScopes] Tek Probe Cables free to a good home

Gotta be in the RPR's somewhere 8^)

If somebody can identify what they are for, or they can use one or more
of them:
PLEASE CONTACT ME OFF LIST AT DENNIS AT RIDESOFT DOT COM
175-8011-00
175-3217-00
175-1205-00
175-0281-00

Dennis Tillman w7pf
--
Dave
Manuals@ArtekManuals.com
www.ArtekManuals.com



--
Dennis Tillman W7PF
TekScopes Moderator


Re: UNC Taps

 

Like everything, there are those who found the topic informative and those
who didn't.
If the discussion of taps has run its course please
AVOID THE URGE TO EXPRESS AN OPINION ABOUT IT.

Thank you,
Dennis Tillman W7PF




--
Dennis Tillman W7PF
TekScopes Moderator


Re: UNC Taps

Harvey White
 

On Sat, 19 Jan 2019 18:11:02 -0600, you wrote:

I think this one is not O.T. personally. If it helps some fellow Tekkies to not destroy their tools or scopes, that seems pretty on-topic to me. It also seems that there is a good sized group of fellows here that appreciated that information and will hopefully make good use of it.
If you ever have to build a replacement mechanical part for a scope,
this information may be useful.

I'd say also that things about 3D printing may be useful to make some
brackets, perhaps knobs, and fasteners.

Somewhere in time, the supply of used mechanical (and electrical)
parts will run out. Some can be made, some can be substituted for,
some (mostly the CRTS) cannot be.

Harvey



--Eric
Sent from my Samsung Galaxy smartphone.
-------- Original message --------From: Dennis Tillman W7PF <dennis@ridesoft.com> Date: 1/19/19 5:22 PM (GMT-06:00) To: TekScopes@groups.io Subject: Re: [TekScopes] UNC Taps
Since you ask:
It is important that the group develop its own guidelines about what is or is not appropriate content.

Dennis Tillman W7PF

-----Original Message-----
From: TekScopes@groups.io [mailto:TekScopes@groups.io] On Behalf Of Jim
Ford
Sent: Saturday, January 19, 2019 1:59 PM
Subject: Re: [TekScopes] UNC Taps

Like I said, Chuck, great information, but time to get off the tapping
bandwagon and get back to Tek Scopes.
Dennis, what say you?
Jim F


Sent from my Verizon, Samsung Galaxy smartphone
-------- Original message --------From: Chuck Harris <cfharris@erols.com>
Date: 1/19/19  5:46 AM  (GMT-08:00) To: TekScopes@groups.io Subject: Re:
[TekScopes] UNC Taps How can a polite discussion of how to find, and how to
safely use, the tools we need to restore our scopes be off topic?

If you don't like a topic, or find the subject of a thread uninteresting,
exercise your personal prerogative, and don't read it.

You needn't inform the group, nor ask its permission.

-Chuck Harris

Jim Ford wrote:
OK, everybody, while I've gotten a hell of an education, it's time to put
this OT thread to bed.
Thanks.
Jim F

Sent from my Verizon, Samsung Galaxy smartphone
-------- Original message --------From: Chuck Harris
<cfharris@erols.com> Date: 1/18/19  9:33 PM  (GMT-08:00) To:
TekScopes@groups.io Subject: Re: [TekScopes] UNC Taps It's probably
also worth mentioning that there are taps for hand tapping, and taps
for machine tapping...  The taps you get in the typical kit are for
hand tapping only, and that means finger power, not with a drill press
and a tap-matic head.


Re: UNC Taps

tom jobe <tomjobe@...>
 

With all due respect... I think you Mr. Ford need to get off of your bandwagon of thinking you are somehow in charge here at Tekscopes.
What you as a new member might consider off topic discussions, educate us all and die off peacefully with no intervention on a regular basis.
The delete key is your friend!
tom jobe...

On 1/19/2019 1:59 PM, Jim Ford wrote:
Like I said, Chuck, great information, but time to get off the tapping bandwagon and get back to Tek Scopes.
Dennis, what say you?
Jim F


Sent from my Verizon, Samsung Galaxy smartphone
-------- Original message --------From: Chuck Harris <cfharris@erols.com> Date: 1/19/19 5:46 AM (GMT-08:00) To: TekScopes@groups.io Subject: Re: [TekScopes] UNC Taps
How can a polite discussion of how to find, and how
to safely use, the tools we need to restore our scopes
be off topic?

If you don't like a topic, or find the subject of a
thread uninteresting, exercise your personal prerogative,
and don't read it.

You needn't inform the group, nor ask its permission.

-Chuck Harris

Jim Ford wrote:
OK, everybody, while I've gotten a hell of an education, it's time to put this OT thread to bed.
Thanks.
Jim F




Sent from my Verizon, Samsung Galaxy smartphone
-------- Original message --------From: Chuck Harris <cfharris@erols.com> Date: 1/18/19  9:33 PM  (GMT-08:00) To: TekScopes@groups.io Subject: Re: [TekScopes] UNC Taps
It's probably also worth mentioning that there are taps for
hand tapping, and taps for machine tapping...  The taps you
get in the typical kit are for hand tapping only, and that
means finger power, not with a drill press and a tap-matic
head.



Re: UNC Taps

EricJ
 

I think this one is not O.T. personally. If it helps some fellow Tekkies to not destroy their tools or scopes, that seems pretty on-topic to me. It also seems that there is a good sized group of fellows here that appreciated that information and will hopefully make good use of it.
--Eric
Sent from my Samsung Galaxy smartphone.

-------- Original message --------From: Dennis Tillman W7PF <dennis@ridesoft.com> Date: 1/19/19 5:22 PM (GMT-06:00) To: TekScopes@groups.io Subject: Re: [TekScopes] UNC Taps
Since you ask:
It is important that the group develop its own guidelines about what is or is not appropriate content.

Dennis Tillman W7PF

-----Original Message-----
From: TekScopes@groups.io [mailto:TekScopes@groups.io] On Behalf Of Jim
Ford
Sent: Saturday, January 19, 2019 1:59 PM
Subject: Re: [TekScopes] UNC Taps

Like I said, Chuck, great information, but time to get off the tapping
bandwagon and get back to Tek Scopes.
Dennis, what say you?
Jim F


Sent from my Verizon, Samsung Galaxy smartphone
-------- Original message --------From: Chuck Harris <cfharris@erols.com>
Date: 1/19/19  5:46 AM  (GMT-08:00) To: TekScopes@groups.io Subject: Re:
[TekScopes] UNC Taps How can a polite discussion of how to find, and how to
safely use, the tools we need to restore our scopes be off topic?

If you don't like a topic, or find the subject of a thread uninteresting,
exercise your personal prerogative, and don't read it.

You needn't inform the group, nor ask its permission.

-Chuck Harris

Jim Ford wrote:
OK, everybody, while I've gotten a hell of an education, it's time to put
this OT thread to bed.
Thanks.
Jim F

Sent from my Verizon, Samsung Galaxy smartphone
-------- Original message --------From: Chuck Harris
<cfharris@erols.com> Date: 1/18/19  9:33 PM  (GMT-08:00) To:
TekScopes@groups.io Subject: Re: [TekScopes] UNC Taps It's probably
also worth mentioning that there are taps for hand tapping, and taps
for machine tapping...  The taps you get in the typical kit are for
hand tapping only, and that means finger power, not with a drill press
and a tap-matic head.



--
Dennis Tillman W7PF
TekScopes Moderator


Re: UNC Taps

Dan Cordova <danny_cordov@...>
 

I'm a retired machinist and have learned from this post.
Anyone can delete the email or hit the mute...

From: Richard Solomon <dickw1ksz@gmail.com>
To: TekScopes <TekScopes@groups.io>
Sent: Saturday, January 19, 2019 3:27 PM
Subject: Re: [TekScopes] UNC Taps

Speaking as a real hack with
mechanical things, I have
learned a lot from this thread.

Not all of us are died in the
wool tool and die makers.

Thanks for the info,

73, Dick, W1KSZ

On Sat, Jan 19, 2019 at 4:22 PM Dennis Tillman W7PF <dennis@ridesoft.com>
wrote:

Since you ask:
It is important that the group develop its own guidelines about what is or
is not appropriate content.

Dennis Tillman W7PF

-----Original Message-----
From: TekScopes@groups.io [mailto:TekScopes@groups.io] On Behalf Of Jim
Ford
Sent: Saturday, January 19, 2019 1:59 PM
Subject: Re: [TekScopes] UNC Taps

Like I said, Chuck, great information, but time to get off the tapping
bandwagon and get back to Tek Scopes.
Dennis, what say you?
Jim F


Sent from my Verizon, Samsung Galaxy smartphone
-------- Original message --------From: Chuck Harris <cfharris@erols.com

Date: 1/19/19  5:46 AM  (GMT-08:00) To: TekScopes@groups.io Subject: Re:
[TekScopes] UNC Taps How can a polite discussion of how to find, and how
to
safely use, the tools we need to restore our scopes be off topic?

If you don't like a topic, or find the subject of a thread uninteresting,
exercise your personal prerogative, and don't read it.

You needn't inform the group, nor ask its permission.

-Chuck Harris

Jim Ford wrote:
OK, everybody, while I've gotten a hell of an education, it's time to
put
this OT thread to bed.
Thanks.
Jim F

Sent from my Verizon, Samsung Galaxy smartphone
-------- Original message --------From: Chuck Harris
<cfharris@erols.com> Date: 1/18/19  9:33 PM  (GMT-08:00) To:
TekScopes@groups.io Subject: Re: [TekScopes] UNC Taps It's probably
also worth mentioning that there are taps for hand tapping, and taps
for machine tapping...  The taps you get in the typical kit are for
hand tapping only, and that means finger power, not with a drill press
and a tap-matic head.



--
Dennis Tillman W7PF
TekScopes Moderator




Re: UNC Taps

Richard Solomon <dickw1ksz@...>
 

Speaking as a real hack with
mechanical things, I have
learned a lot from this thread.

Not all of us are died in the
wool tool and die makers.

Thanks for the info,

73, Dick, W1KSZ

On Sat, Jan 19, 2019 at 4:22 PM Dennis Tillman W7PF <dennis@ridesoft.com>
wrote:

Since you ask:
It is important that the group develop its own guidelines about what is or
is not appropriate content.

Dennis Tillman W7PF

-----Original Message-----
From: TekScopes@groups.io [mailto:TekScopes@groups.io] On Behalf Of Jim
Ford
Sent: Saturday, January 19, 2019 1:59 PM
Subject: Re: [TekScopes] UNC Taps

Like I said, Chuck, great information, but time to get off the tapping
bandwagon and get back to Tek Scopes.
Dennis, what say you?
Jim F


Sent from my Verizon, Samsung Galaxy smartphone
-------- Original message --------From: Chuck Harris <cfharris@erols.com

Date: 1/19/19 5:46 AM (GMT-08:00) To: TekScopes@groups.io Subject: Re:
[TekScopes] UNC Taps How can a polite discussion of how to find, and how
to
safely use, the tools we need to restore our scopes be off topic?

If you don't like a topic, or find the subject of a thread uninteresting,
exercise your personal prerogative, and don't read it.

You needn't inform the group, nor ask its permission.

-Chuck Harris

Jim Ford wrote:
OK, everybody, while I've gotten a hell of an education, it's time to
put
this OT thread to bed.
Thanks.
Jim F

Sent from my Verizon, Samsung Galaxy smartphone
-------- Original message --------From: Chuck Harris
<cfharris@erols.com> Date: 1/18/19 9:33 PM (GMT-08:00) To:
TekScopes@groups.io Subject: Re: [TekScopes] UNC Taps It's probably
also worth mentioning that there are taps for hand tapping, and taps
for machine tapping... The taps you get in the typical kit are for
hand tapping only, and that means finger power, not with a drill press
and a tap-matic head.



--
Dennis Tillman W7PF
TekScopes Moderator




Re: Tek Probe Cables free to a good home

Artekmedia <manuals@...>
 

Gotta be in the RPR's somewhere 8^)

On 1/19/2019 5:42 PM, Dennis Tillman W7PF wrote:
I have the following probe cables which I do not need.

If somebody can identify what they are for, or they can use one or more of
them:

PLEASE CONTACT ME OFF LIST AT DENNIS AT RIDESOFT DOT COM


175-8011-00

175-3217-00

175-1205-00

175-0281-00


Dennis Tillman w7pf




--
Dave
Manuals@ArtekManuals.com
www.ArtekManuals.com


Re: UNC Taps

 

Since you ask:
It is important that the group develop its own guidelines about what is or is not appropriate content.

Dennis Tillman W7PF

-----Original Message-----
From: TekScopes@groups.io [mailto:TekScopes@groups.io] On Behalf Of Jim
Ford
Sent: Saturday, January 19, 2019 1:59 PM
Subject: Re: [TekScopes] UNC Taps

Like I said, Chuck, great information, but time to get off the tapping
bandwagon and get back to Tek Scopes.
Dennis, what say you?
Jim F


Sent from my Verizon, Samsung Galaxy smartphone
-------- Original message --------From: Chuck Harris <cfharris@erols.com>
Date: 1/19/19 5:46 AM (GMT-08:00) To: TekScopes@groups.io Subject: Re:
[TekScopes] UNC Taps How can a polite discussion of how to find, and how to
safely use, the tools we need to restore our scopes be off topic?

If you don't like a topic, or find the subject of a thread uninteresting,
exercise your personal prerogative, and don't read it.

You needn't inform the group, nor ask its permission.

-Chuck Harris

Jim Ford wrote:
OK, everybody, while I've gotten a hell of an education, it's time to put
this OT thread to bed.
Thanks.
Jim F

Sent from my Verizon, Samsung Galaxy smartphone
-------- Original message --------From: Chuck Harris
<cfharris@erols.com> Date: 1/18/19 9:33 PM (GMT-08:00) To:
TekScopes@groups.io Subject: Re: [TekScopes] UNC Taps It's probably
also worth mentioning that there are taps for hand tapping, and taps
for machine tapping... The taps you get in the typical kit are for
hand tapping only, and that means finger power, not with a drill press
and a tap-matic head.



--
Dennis Tillman W7PF
TekScopes Moderator


Tek Probe Cables free to a good home

 

I have the following probe cables which I do not need.

If somebody can identify what they are for, or they can use one or more of
them:

PLEASE CONTACT ME OFF LIST AT DENNIS AT RIDESOFT DOT COM



175-8011-00

175-3217-00

175-1205-00

175-0281-00



Dennis Tillman w7pf


Re: UNC Taps

Jim Ford
 

Like I said, Chuck, great information, but time to get off the tapping bandwagon and get back to Tek Scopes.
Dennis, what say you?
Jim F


Sent from my Verizon, Samsung Galaxy smartphone

-------- Original message --------From: Chuck Harris <cfharris@erols.com> Date: 1/19/19 5:46 AM (GMT-08:00) To: TekScopes@groups.io Subject: Re: [TekScopes] UNC Taps
How can a polite discussion of how to find, and how
to safely use, the tools we need to restore our scopes
be off topic?

If you don't like a topic, or find the subject of a
thread uninteresting, exercise your personal prerogative,
and don't read it.

You needn't inform the group, nor ask its permission.

-Chuck Harris

Jim Ford wrote:
OK, everybody, while I've gotten a hell of an education, it's time to put this OT thread to bed.
Thanks.
Jim F




Sent from my Verizon, Samsung Galaxy smartphone
-------- Original message --------From: Chuck Harris <cfharris@erols.com> Date: 1/18/19  9:33 PM  (GMT-08:00) To: TekScopes@groups.io Subject: Re: [TekScopes] UNC Taps
It's probably also worth mentioning that there are taps for
hand tapping, and taps for machine tapping...  The taps you
get in the typical kit are for hand tapping only, and that
means finger power, not with a drill press and a tap-matic
head.


Tek's new president tours vintageTEK

 

I thought these two articles would be of interest to the group.



<https://vintagetek.org/tektronix-presidents-tour/>
https://vintagetek.org/tektronix-presidents-tour/


<https://www.oregonlive.com/silicon-forest/2019/01/tektronix-names-new-presi
dent-marc-tremblay.html>
https://www.oregonlive.com/silicon-forest/2019/01/tektronix-names-new-presid
ent-marc-tremblay.html



I found the last paragraph of the 2nd article to be particularly interesting

"Once Oregon's signature tech company, Tektronix is now greatly diminished
but remains among the state's largest technology employers. It employs
hundreds, perhaps more than 1,000 (Fortive won't say how many) at its
250-acre campus near Beaverton."



Dennis Tillman W7PF


Re: TDS-420A power supply repair

Brendan
 

Brian
Jan 18 #153753

I have a bad psu in my TDS-420A , it burned a track on the pcb bur I cannot find the cause , the switching transistor os it seems . I have had it suggested that the hybrid device is probably the fault , does anyone know what the device consists of , or better still does anyone actually have one that they would part with .

Thanks in advance for any help you can give


On Sat, Jan 19, 2019 at 08:22 AM, Bob Koller wrote:


Where is the burn? Can you post a picture?

I just finished two of these PSU's, I think you need to replace ALL of the
small electrolytic caps, don't bother testing, etc, just replace, they are all
past it.
One of the problem areas in this unit is the black potted mains switching
circuit in the primary. It controls the input doubler configuration by
automatically sensing 120 vs 240 mains input. It can be removed and jumped
across.
The other issue is the regulator board mounted vertically near the output
connector. These can get dirty from the fan, causing leakage paths, and
subsequent erroneous shutdown signals.
That is identical to the power supply I just fixed. Every single capacitor on the power supply board was bad. Either in the process of leaking or already leaked out and dried out. After replacing those and the all know SMD caps issue all seems well. You may want to check that the output connector joints are solid as well,just in case.


Re: TDS-420A power supply repair

Bob Koller <testtech@...>
 

Where is the burn? Can you post a picture?

I just finished two of these PSU's, I think you need to replace ALL of the small electrolytic caps, don't bother testing, etc, just replace, they are all past it.
One of the problem areas in this unit is the black potted mains switching circuit in the primary. It controls the input doubler configuration by automatically sensing 120 vs 240 mains input. It can be removed and jumped across.
The other issue is the regulator board mounted vertically near the output connector. These can get dirty from the fan, causing leakage paths, and subsequent erroneous shutdown signals.


Re: vintageTEK museum releases Replaceable Parts Registry (RPR)

victor.silva
 

Very nice information. Is anything like this available for after 1986, say 1986 through 1995? I'm looking for 2465B/67B information.

If only Tek released their source control drawings, wishful thinking.

--Victor


Re: UNC Taps

Chuck Harris <cfharris@...>
 

How can a polite discussion of how to find, and how
to safely use, the tools we need to restore our scopes
be off topic?

If you don't like a topic, or find the subject of a
thread uninteresting, exercise your personal prerogative,
and don't read it.

You needn't inform the group, nor ask its permission.

-Chuck Harris

Jim Ford wrote:

OK, everybody, while I've gotten a hell of an education, it's time to put this OT thread to bed.
Thanks.
Jim F




Sent from my Verizon, Samsung Galaxy smartphone
-------- Original message --------From: Chuck Harris <cfharris@erols.com> Date: 1/18/19 9:33 PM (GMT-08:00) To: TekScopes@groups.io Subject: Re: [TekScopes] UNC Taps
It's probably also worth mentioning that there are taps for
hand tapping, and taps for machine tapping... The taps you
get in the typical kit are for hand tapping only, and that
means finger power, not with a drill press and a tap-matic
head.


Re: 7104 -7854 SMPS Dummy Load Construction Article

tek_547
 

Very usefull, thanx!
René


Re: 7104 -7854 SMPS Dummy Load Construction Article

Glydeck
 

Dennis,

Nicely done! Thanks.

George

On Jan 18, 2019, at 6:38 PM, Dennis Tillman W7PF <dennis@ridesoft.com> wrote:

I uploaded a 2 page article to the Files section of TekScopes on how to
build a dummy load for testing the 7104 and 7854 Switching Mode Power
Supplies. You can find it by going to the files section and searching for
7104.



The full name of the file is: 7104 - 7854 SMPS Dummy Load.docx



The link address is

https://groups.io/g/TekScopes/files/7104%20-%207854%20SMPS%20Dummy%20Load.do
cx



Thanks to those who made suggestions for what load resistors to use.



Dennis Tillman W7PF





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