Date   

Re: 7904 parts mule anyone?

Roy Thistle
 

Hi:
Do you still have the part?
Regards.
Roy


Re: What is the fairest way to distribute scarce Tek resources

Jim Potter
 

Sounds to me it's either by chance or by whoever has the most money. I do well on eBay by taking advantage of people who don't know what they have or how to test it. That won't happen here.🙂


Re: EZ Test for 4041

Vince Vielhaber
 

There was a hard drive available for it. It was small, 10MB I think, but it worked. Really slow, but better than tapes.

Vince - K8ZW.

On 06/06/2019 01:07 AM, Dave Brown wrote:
My 4041 is still languishing here due to lack of a DC100A tape that will allow me to boot it and make it useable. Think I'm about ready to give up and part it out or whatever - it's only been sitting here unused for well over 10 years! What they need is for some clever dude to come up with an adapter to boot them or load other software from an SD card or similar.
DaveB, NZ


-----Original Message-----
From: TekScopes@groups.io [mailto:TekScopes@groups.io] On Behalf Of Gary Robert Bosworth
Sent: Monday, June 03, 2019 13:32
To: TekScopes@groups.io
Subject: [TekScopes] EZ Test for 4041

Does anyone have a DC-100A tape with Tektronix EZ-TEST software on it for the Tektronix 4041 GPIB Controller, that they are interested in selling? Mine has become weak with time and is not reliable anymore.
Gary







Re: EZ Test for 4041

Dave Brown
 

My 4041 is still languishing here due to lack of a DC100A tape that will allow me to boot it and make it useable. Think I'm about ready to give up and part it out or whatever - it's only been sitting here unused for well over 10 years! What they need is for some clever dude to come up with an adapter to boot them or load other software from an SD card or similar.
DaveB, NZ

-----Original Message-----
From: TekScopes@groups.io [mailto:TekScopes@groups.io] On Behalf Of Gary Robert Bosworth
Sent: Monday, June 03, 2019 13:32
To: TekScopes@groups.io
Subject: [TekScopes] EZ Test for 4041

Does anyone have a DC-100A tape with Tektronix EZ-TEST software on it for the Tektronix 4041 GPIB Controller, that they are interested in selling? Mine has become weak with time and is not reliable anymore.
Gary


Re: What is the fairest way to distribute scarce Tek resources

stefan_trethan
 

First come, first serve is perfectly fair.
I haven't been able to follow the list as much as I used to, and I think it
is perfectly fair that as a result I should have a lower chance at getting
something, since I'm not contributing either.

ST

On Tue, Jun 4, 2019 at 6:41 PM Dennis Tillman W7PF <dennis@ridesoft.com>
wrote:

Often when a member says they have some Tek
scope/instrument/plugin/part/etc
that they no longer need or want the next person who happens to logon is
the
lucky individual who grabs it.

On occasion I have been the first to reply and benefited from this. More
often than not I see the email long after the item has been spoken for.

This happens often enough to all of us that we would benefit from finding
an
alternative way to share our combined resources.



I would like suggestions on what is a fairer way to distribute Tek related
things to TekScopes members.

This affects all of us. It should not depend on chance.



Dennis Tillman W7PF





Re: What is the fairest way to distribute scarce Tek resources

Tony Fleming
 

Well said!
And I'm OK with someone making the call at 3AM or so! ha ha ha

On Tue, Jun 4, 2019 at 12:57 PM ArtekManuals <manuals@artekmanuals.com>
wrote:

"Life is not fair" nor was it ever intended to be.

If one has an overreaching need to be first in line then it is their
responsibility to research and subscribe to whatever email service is
fastest and have it ring their phone at 3AM in the morning.

Dave
ArtekManuals

On 6/4/2019 12:40 PM, Dennis Tillman W7PF wrote:
Often when a member says they have some Tek
scope/instrument/plugin/part/etc
that they no longer need or want the next person who happens to logon is
the
lucky individual who grabs it.

On occasion I have been the first to reply and benefited from this. More
often than not I see the email long after the item has been spoken for.

This happens often enough to all of us that we would benefit from
finding an
alternative way to share our combined resources.



I would like suggestions on what is a fairer way to distribute Tek
related
things to TekScopes members.

This affects all of us. It should not depend on chance.



Dennis Tillman W7PF




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






Re: tektronix475 fault hv section? no trace

Jiří Kauč
 

Thank you so much, i ll try asap. A lot of normal life work, so i cant do it in following days. Anyway, i ll report u, what i find it out.


Re: tektronix475 fault hv section? no trace

unclebanjoman
 

The last photo shows a regular oscillation as it should be.
Reconnect pin 24. Disconnect U1321 and pull out the socket at the rear of CRT.

Set your test oscilloscope 50 V/div, 20 us/div (use a 10:1 probe eventually) and check the waveform on the CATHODE of CR1329 (pay attention to point the RIGHT diode!).
You should see a sine wave of about 300 V p-p (110 V RMS approx.) at the same frequency of your third photo, approx 50 kHz . If it is present, then the oscillator works properly.

Reconnect the rear plug on CRT socket (leave disconnected U1321 for now).
If the previous waveform disappears, then a short somewhere in the CRT is the most probable cause. Possibly between cathode and filament (heater) or so.

Don't be depressed, be patient!

I just worked an entire week repairing a 475A with mad Z-axis, ending up discovering that there was a leakage between the first grid and the cathode...

Max


Re: NOS Tek 200-2260-00 Cover, Carrying Case $15 (spoken for)

Oz-in-DFW
 

The cover is committed


Re: Calibration suite for 500MHz TDS scopes

Dan Fish
 

Longview WA 45 mi. N of Portland OR.Sent from my Verizon, Samsung Galaxy smartphone

-------- Original message --------From: "David C. Partridge" <david.partridge@perdrix.co.uk> Date: 6/5/19 2:25 PM (GMT-08:00) To: TekScopes@groups.io Subject: Re: [TekScopes] Calibration suite for 500MHz TDS scopes Where on the planet are you?  I might assume USA, but that might be rash ...-----Original Message-----From: TekScopes@groups.io [mailto:TekScopes@groups.io] On Behalf Of Dan FishSent: 05 June 2019 21:42To: TekScopes@groups.ioSubject: [TekScopes] Calibration suite for 500MHz TDS scopes


Re: Calibration suite for 500MHz TDS scopes

 

Where on the planet are you? I might assume USA, but that might be rash ...

-----Original Message-----
From: TekScopes@groups.io [mailto:TekScopes@groups.io] On Behalf Of Dan Fish
Sent: 05 June 2019 21:42
To: TekScopes@groups.io
Subject: [TekScopes] Calibration suite for 500MHz TDS scopes


Re: NOS Tek 200-2260-00 Cover, Carrying Case $15

Phillip Potter
 

You’ve got email

On Jun 5, 2019, at 8:54 AM, Oz-in-DFW <lists@ozindfw.net> wrote:

New-old stock. Purchased in 1995 and not used. I dimly remember it was for a 335 scope.

$15 + Actual shipping cost (and you pay whatever tax or duty your destination requires)

--
mailto:oz@ozindfw.net http://www.ozindfw.net
Oz; POB 93167; Southlake, TX 76092 (Near DFW Airport)

If electricity comes from electrons, does morality come from morons?



Re: PG506 ISSUES Need some experienced minds!

Ed (SCSKITS)
 

My quick guess is a shorted or almost shorted tantalum inboard of F30.

ed


Calibration suite for 500MHz TDS scopes

Dan Fish
 

I am downsizing. I have equipment that I have used (not in last several years) to get through calibration of TDS 500, 600, 700 series 500MHz scopes. I'm sure the equipment also applies to older digital and real time scopes. Be aware that this is just the test equipment, not the PC-AT, GBIB card/driver, or the Tek software you would also need. Info and software available on the GPIB subject through this group. I would like to bundle all this test equipment and ship it to one new owner, and I am asking this group first before putting it up on ebay. Any reasonable offers would be considered. Equip list and condition:
1. TM506 chassis, was rack-mounted, usual wear and tear, fan OK. Has four TM500 series plug-ins (below), all working, all have unbroken plastic bezels and clean front panels, three of the four have their pull-tabs. Pendant power cord.
2. SG503 Leveled Sine Wave Generator - in good shape except the missing pull-tab.
3. SG504 Leveled Sine Wave Generator - in good shape. I have seen it not switch correctly from Low to the High range when checking it out, but that seems to have gone away after exercising the switches.
4. Leveling head for the SG504 - not Tek, but from kit by group member. There is an adjustment inside for flatness that I did not have calibrated equipment to adjust, so it is just centered. Appeared flat using Boonton Millivolt meter.
5. DM501A Digital Multimeter - never used it myself, a handheld meter always seemed handier. Range switches acting up, may improve with exercise.
6. PS503A Power Supply, has +20, -20 adjustable and 5V fixed. Tracking knob is cracked.
7. Analogic DC Voltage Standard model AN3100 (not part of TM series) - precision DC source used in calibration procedures, in good shape with usual wear and tear.
8. A homebrew splitter for channel delay synchronization.

The chassis has two more open slots. I will provide power cord and copied manual for the AN3100, Manuals are available for the TM500 series through this group. If interested email me off-group at defish1@comcast.net. I can provide pictures or whatever.


Tektronix 4S3

Brian
 

Hi all , does anyone on here have spare or know where I might get hold of a 4S3 plug-in for my 661 , its the only plug-in I dont have . There is no need for it to be in working order or for there to be any P6038 probes with it as I can sort that out . Much easier if located in the UK but maybe unlikely .

thanks in advance
Brian


NOS Tek 200-2260-00 Cover, Carrying Case $15

Oz-in-DFW
 

New-old stock. Purchased in 1995 and not used. I dimly remember it was for a 335 scope.

$15 + Actual shipping cost (and you pay whatever tax or duty your destination requires)

--
mailto:oz@ozindfw.net http://www.ozindfw.net
Oz; POB 93167; Southlake, TX 76092 (Near DFW Airport)

If electricity comes from electrons, does morality come from morons?


Re: What is the fairest way to distribute scarce Tek resources

Reginald Beardsley
 

We already have Dave Kirkby's list in addition to LeCroy, Tek and HPAK specific lists. I bought quite a bit of Sun equipment via the misc.forsale.computers.workstations Usenet list almost 30 years ago. Never had a problem. I also maintained a long list of computer resellers compiled from trade rags and other sources which I posted regularly.

The public nature of the mailing lists makes it very difficult for bad actors. They are quickly driven off. While it's fairly easy to fake an email identity, it's a lot harder to fake a bank account. I bought an 8753B/45076A and an 8566B from members of the HPAK and Kirkby's list with payment by check. Never had the least qualms about it.

If the groups.io files section uses sticky bit so that only the creator can modify or delete files then we could have a "for sale/wanted" section for people to list things in and update it as items sell or are obtained.

Dave, What chassis do you trying to get rid of?


Reg


Re: How can we set up a Parts Wanted list on Groups.io

Dave Daniel
 

Just off of the top of my head, this would be a perfect application for a MediaWiki site (wiki framework that TekWiki uses. Why?

The main problem I see with group forum is that I think we would want individuals to be able to add available parts of wanted parts without everything having to go through a moderator. A moderator would be useful to keep the lists ummmm.... correct, not in an editorial sense but in a bottlewashing and botton sorting type of role.

A wkik allows anyonecwho is given access (and there are multiple levels of access) an easy way to edit the parts lists - and it IS easy - the markup language is straightforward.

Anyway, I used to be a semi-unwilling admin for a TekWiki site where an entire engineering team used it to create a structured and indexed set of arch and design documents for the development of a large embedded system. After a couple of weenks, the engineers were using it without much effort and it worked quite well.

DaveD

Sent from a small flat thingy

On Jun 4, 2019, at 12:45, Dennis Tillman W7PF <dennis@ridesoft.com> wrote:

At the Seaside OR ham swap meet last Saturday one of the TekScopes members
asked if there was a way to list some Tek parts he was looking for on
TekScopes.

Of course there really isn't one at the moment but if we could set one up
what would it look like and how would it work?

If we can work out something "simple" maybe we can get Groups.io to
implement it for us.



Does anyone know how other groups handle this?



Dennis Tillman W7PF




Re: What is the fairest way to distribute scarce Tek resources

n4buq
 

Followed by the next most annoying thing: "You're second in line but will let you know if the first deal falls through."

Thanks,
Barry - N4BUQ

----- Original Message -----
From: "Dave Seiter" <d.seiter@att.net>
To: TekScopes@groups.io
Sent: Tuesday, June 4, 2019 1:12:20 PM
Subject: Re: [TekScopes] What is the fairest way to distribute scarce Tek resources

I've got to admit, it annoys me to be the first to respond to an item on CL
and be told "you were first, but we decided to give "it" to someone else...
-Dave


Re: How can we set up a Parts Wanted list on Groups.io

David Berlind
 

How about a Google spreadsheet?

On June 4, 2019 12:46:12 PM "Dennis Tillman W7PF" <dennis@ridesoft.com> wrote:

At the Seaside OR ham swap meet last Saturday one of the TekScopes members
asked if there was a way to list some Tek parts he was looking for on
TekScopes.

Of course there really isn't one at the moment but if we could set one up
what would it look like and how would it work?

If we can work out something "simple" maybe we can get Groups.io to
implement it for us.



Does anyone know how other groups handle this?



Dennis Tillman W7PF


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