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Re: Shipping Scopes

Keith
 

adding my little story to this thread. Not more anecdotes, just observations

1. I bought a 575 curve tracer located in Ohio, and had it packed and shipped at the UPS store there. It cost $200 to pack
2. It arrived with a broken CRT
3. I had specifically paid for insurance from UPS - and CRITICALLY, I had also had the UPS shipper pack the item. I insured it for $400 (the cost of the scope plus the shipping)
4. When it arrived, it had obviously been well packed, and just as obviously it had been dropped - hard.
5. Naturally, the precious CRT was destroyed. It was broken at the neck just as another poster had mentioned was common for these devices when shipped.

Moral? BECAUSE I had paid for insurance and BECAUSE it was packed by the UPS store, they eventually paid off in full. I received my $400 check from UPS after about 60 days. They did not want the scope back, because I did NOT declare it a "total loss". (I said the cost of repair was over $500 and submitted an invoice to that effect from a fellow Tek scope enthusiast who has more than a few Tek scopes, including curve tracers, on his bench. :-) They paid the full insurance payoff.

I put a compatible CRT in it. :-) which meant that I have a $45.00 575 curve tracer.


Re: Shipping Scopes

Harvey White
 

Never had one, but I think that I remember a post saying that there was a compactron somewhere in something of that era.  My last (and only Heathkit) scope was an OM3 that I had a very long time ago.  There was another that I built from scratch, with the aid of a magnifying glass and a surplus scope tube (3FP7?) and a breadpan bought from the local Kresges store (yes, it was a VERY long time ago).

The OM3 needed to convert the filaments from AC to DC, and I don't know where the leakage and hum came from.  DC on the filaments helped a lot....

Next scope was, IIRC, a Tek 512... followed by a 513D, but that's another story.

Harvey

On 9/28/2020 7:21 PM, Tom Lee wrote:
A bit OT, but Compactrons in the IO-10?? I don't believe that Heathkit ever put Compactrons in a scope (but would be happy to be educated otherwise).

As for loose objects in a crt, that's never good. It's a shame that it was shipped so poorly.

--Tom


Re: How to make a 500 series plug-in extender

Martin Hodge
 

Here's one I made from the connectors taken out of a trashed type 81 plugin adapter. Two long standoffs hold it rigid. Feeding a square wave of a precise amplitude, through a coupling capacitor, into the scope side of the resistor allows calibration of a scope's vertical gain. The resistor is bypassed when calibrating a plugin.

https://groups.io/g/TekScopes/photo/254285/0


Re: Soul searching = Lab Purge

Keith
 

Hi David,

I sure could use the TO-6. Mine is pretty long of tooth, and I like to have two of something I use regularly. As you know, these are rather hard to come by. I'm not rich, but I promise it would get a good home where it would definitely be used.

p.m. me to discuss terms?

Thanks,

Keith


Re: How to make a 500 series plug-in extender

Grayson Evans
 

Thanks John,
Looks to me like pins 1 and 3 and 4 and 5 would need to be small coax like you said (RG174 for example) even if the connecting length is only 2 ft. or so.
I looked at the cable on ebay. Very nice, good price, but seller doesnt say if all the pins are connected. It is unlikely that any are coax or shielded.
Thanks for the info.
Grayson


Re: Shipping Scopes

Tom Lee
 

A bit OT, but Compactrons in the IO-10?? I don't believe that Heathkit ever put Compactrons in a scope (but would be happy to be educated otherwise).

As for loose objects in a crt, that's never good. It's a shame that it was shipped so poorly.

--Tom

--
Prof. Thomas H. Lee
Allen Ctr., Rm. 205
350 Jane Stanford Way
Stanford University
Stanford, CA 94305-4070
http://www-smirc.stanford.edu

On 9/28/2020 16:17, Harvey White wrote:
When a CRT is built, it does not rattle.

When it does, embarrassing questions need to be asked.

Harvey


On 9/28/2020 6:51 PM, David Collier wrote:
Just received a Heathkit IO-10 from the USA via the Global Shipping Service.  It was loosely packed in a cardboard parcel and had clearly been dropped from waist height onto concrete!  Hence one large electrolytic had broken away from its paxolin base; all three large compactrons were half out of their sockets at the same angle, and the chassis was bent on one side. The CRT survived but has something loose inside, so may or may not work.
By contrast I drove 8 hours to safely pick up two TEK 545B's locally.
Sellers need education in packing these things properly.








Re: Shipping Scopes

Harvey White
 

When a CRT is built, it does not rattle.

When it does, embarrassing questions need to be asked.

Harvey

On 9/28/2020 6:51 PM, David Collier wrote:
Just received a Heathkit IO-10 from the USA via the Global Shipping Service. It was loosely packed in a cardboard parcel and had clearly been dropped from waist height onto concrete! Hence one large electrolytic had broken away from its paxolin base; all three large compactrons were half out of their sockets at the same angle, and the chassis was bent on one side. The CRT survived but has something loose inside, so may or may not work.
By contrast I drove 8 hours to safely pick up two TEK 545B's locally.
Sellers need education in packing these things properly.





Re: Anyone know what happened to Stan Griffiths (of Restoring a Classic fame)?

Dave Brown
 

Stan gave the vintageTEK museum the rights to reproduce his book. No one outside of the family or the museum has the right to reproduce. We have the CD version on the eBay store. We are out of the print copy but will likely be ordering more soon.

Dave


Re: Shipping Scopes

John Williams
 

It is interesting to know that the Global Shipping has not fixed these problems. When this happened to Somme items I purchased I notified the seller and requested a refund. If they did not offer at least something, I put in a PayPal claim I hope you would do something similar.


Re: Shipping Scopes

 

Just received a Heathkit IO-10 from the USA via the Global Shipping Service. It was loosely packed in a cardboard parcel and had clearly been dropped from waist height onto concrete! Hence one large electrolytic had broken away from its paxolin base; all three large compactrons were half out of their sockets at the same angle, and the chassis was bent on one side. The CRT survived but has something loose inside, so may or may not work.
By contrast I drove 8 hours to safely pick up two TEK 545B's locally.
Sellers need education in packing these things properly.


Re: How to make a 500 series plug-in extender

John Williams
 

Actually I just found a really nice looking one.

https://www.ebay.com/itm/AMPHENOL16-Pin-26-159-16-Connector-26-190-16-Receptacle-w-cable/124285733386?hash=item1cf001ca0a:g:x6wAAOSwrjBfKeqs

For 25 bucks this is a great deal. If he would ship to Canada I would buy it myself. Alas, no joy.


Re: How to make a 500 series plug-in extender

John Williams
 

Grayson once you find connectors you are home free pretty much. There are lots on eBay at various prices. You can also order new ones but generally run megabucks. I just use hookup wire to make the cable and lots of tiny cable ties to take the strain of the wires on the connections. You have to be careful using them as the voltages are exposed. I have not bothered covering or potting them. You can use tiny coax for pins 1 and 3. These allow you to get the plugin out where you can work on it plus rotate it carefully while working on it.


Re: How to make a 500 series plug-in extender

greenboxmaven
 

The connectors on many Tektronix plug ins are Amphenol Blue Ribbon series. Be careful in ordering, while the actual contacts are the same, the connector bodies and locating pins have many variations.

Bruce Gentry, KA2IVY

On 9/28/20 1:48 PM, Grayson Evans wrote:
Yes, I forgot about the TM500 series.
I am trying to find the connectors that are used on the 500 series Scope plug-ins and chassis.
Pretty sure they are Amphanol, but I only have the Tek part number.
Grayson





Re: 2467BHD does xy-mode as single sweep event, continous display missing

Stefan
 

Thank you, Chuck. I was going crazy trying to figure out why the screen blanked quickly after showing the proper image.

-S


Re: Soul searching = Lab Purge

Ed (SCSKITS)
 

David:

May be interested in some of the HAM gear or the tube radios.
Send me a list off group when you get a chance.

Located in western CT...
Ed


Re: How to make a 500 series plug-in extender

Dano
 

Ok, I don't normally respond to stuff like this, but this one got me.

Regarding the eBay listing, "Used Item", but "only once!"

I'll shut up now.

On 9/28/2020 1:37 PM, John Williams wrote:
The amphenol Part numbers are 26-159-16 for male and 26-190-16 for female. Make sure the male has the locating pins intact. There is a similar connector used in the 551 and 555 power cable but they won’t fit.

Here is an example of what is on eBay, this looks like a nice set of both connectors, alas not mine.

https://www.ebay.com/itm/Amphenol-Male-and-Female-26-190-16-Gold-Plated-Tektronix-plug-in/184462985269?hash=item2af2d9c835:g:R8MAAOSw7ixfbrqi




Re: How to make a 500 series plug-in extender

John Williams
 

The amphenol Part numbers are 26-159-16 for male and 26-190-16 for female. Make sure the male has the locating pins intact. There is a similar connector used in the 551 and 555 power cable but they won’t fit.

Here is an example of what is on eBay, this looks like a nice set of both connectors, alas not mine.

https://www.ebay.com/itm/Amphenol-Male-and-Female-26-190-16-Gold-Plated-Tektronix-plug-in/184462985269?hash=item2af2d9c835:g:R8MAAOSw7ixfbrqi


Re: How to make a 500 series plug-in extender

Grayson Evans
 

Yes, I forgot about the TM500 series.
I am trying to find the connectors that are used on the 500 series Scope plug-ins and chassis.
Pretty sure they are Amphanol, but I only have the Tek part number.
Grayson


Re: Anyone know what happened to Stan Griffiths (of Restoring a Classic fame)?

Grayson Evans
 

I was afraid of that. A lot of knowledge went with him.
I hope someone or some organization was able to keep his collection. He had a huge "warehouse" with tons of scopes as well as manuals.
I still have the book but haven't seen it on-line in many years.

Regards,
Grayson


Re: How to make a 500 series plug-in extender

Dave Seiter
 

I made an 500 series extender years ago. Both connectors came from a badly corroded 535 and it's plugin. The cable is about 3' long and unshielded, but it gets the job done for most uses.  I do have a genuine fixed extender somewhere, but I prefer having the ability to rotate the plugin.
-Dave

On Monday, September 28, 2020, 07:10:56 AM PDT, Grayson Evans <wa4gvm@gmail.com> wrote:

I don't suppose there are a bunch of plug-in extenders floating around, so looks like I need to build one. (I see one on ebay, but out of my price range)
If I can locate a source of the connectors, it should not be too hard to connect a male to female with short wires/coax.
Has anyone out there done this?  Those connectors look like a stock (in the 60's) amphanol connector, but I don't see any manuf. part number in the plug-in or scope parts list.  They were used in a lot of military gear.  Amphanol probably still makes it.
Thanks,
Grayson

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