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

 

Here's the details of one I made recently:
/g/TekScopes/album?id=252147

On Mon, Sep 28, 2020 at 9:10 AM Grayson Evans <wa4gvm@...> 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





--
Andy


Re: Soul searching = Lab Purge

 

On Sun, Sep 27, 2020 at 10:52 PM, snapdiode wrote:


unloading years of meaningless material cruft
Like what? And where do you live?

larry


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

 

They are offering on a CD.



On eBay


George

On Sep 28, 2020, at 8:21 AM, David Holland <david.w.holland@...> wrote:

I thought the VintageTek museum reprinted his book. Are they out again?

(Appears so).... They do make a PDF available:



David

On Mon, Sep 28, 2020 at 10:53 AM Dave Daniel <kc0wjn@...> wrote:

Regrettably Stan has passed on.

There are second-hand copies of his book available but they are very, very
expensive (between $70 and $300).

DaveD

On Sep 28, 2020, at 10:37, Grayson Evans <wa4gvm@...> wrote:

Stan wrote: Oscilloscopes: Selecting and Restoring a Classic, which I
think is way out of print. Fortunately I still have my copy and use it all
the time to ID Tek scopes and plug-ins. He was a Tek employee and lived in
Beaverton, not far from me.
He restored my two 547's in the 90's. He was a firm believer in giving
the scopes a high pressure wash, then a through dry in an oven he made out
of an old refrigerator. Guess it worked. I also traded him some 500
series plug-ins.
Would love to reconnect if he is still alive.
Thanks,
Grayson, KJ7UM












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

 

I thought the VintageTek museum reprinted his book. Are they out again?

(Appears so).... They do make a PDF available:



David

On Mon, Sep 28, 2020 at 10:53 AM Dave Daniel <kc0wjn@...> wrote:

Regrettably Stan has passed on.

There are second-hand copies of his book available but they are very, very
expensive (between $70 and $300).

DaveD

On Sep 28, 2020, at 10:37, Grayson Evans <wa4gvm@...> wrote:

Stan wrote: Oscilloscopes: Selecting and Restoring a Classic, which I
think is way out of print. Fortunately I still have my copy and use it all
the time to ID Tek scopes and plug-ins. He was a Tek employee and lived in
Beaverton, not far from me.
He restored my two 547's in the 90's. He was a firm believer in giving
the scopes a high pressure wash, then a through dry in an oven he made out
of an old refrigerator. Guess it worked. I also traded him some 500
series plug-ins.
Would love to reconnect if he is still alive.
Thanks,
Grayson, KJ7UM









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

 

Hi Grayson,
I'm afraid that Stan died earlier this year. This is what Dennis Tillman posted on 30/01/2020:

"I'm sorry to inform everyone that Stan Griffiths W7NI passed away Tuesday night at 00:30."

His obituary is here;
/g/TekScopes/files/Stan%20Griffiths%20Obituary

Colin.

-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Grayson Evans
Sent: 28 September 2020 15:38
To: [email protected]
Subject: [TekScopes] Anyone know what happened to Stan Griffiths (of Restoring a Classic fame)?

Stan wrote: Oscilloscopes: Selecting and Restoring a Classic, which I think is way out of print. Fortunately I still have my copy and use it all the time to ID Tek scopes and plug-ins. He was a Tek employee and lived in Beaverton, not far from me.
He restored my two 547's in the 90's. He was a firm believer in giving the scopes a high pressure wash, then a through dry in an oven he made out of an old refrigerator. Guess it worked. I also traded him some 500 series plug-ins.
Would love to reconnect if he is still alive.
Thanks,
Grayson, KJ7UM


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

 

Hey Grayson,

I didn't know Stan, but here's a message in the archives about his death
and memorial: /g/TekScopes/message/164990.

Siggi

On Mon, Sep 28, 2020 at 10:37 AM Grayson Evans <wa4gvm@...> wrote:

Stan wrote: Oscilloscopes: Selecting and Restoring a Classic, which I
think is way out of print. Fortunately I still have my copy and use it all
the time to ID Tek scopes and plug-ins. He was a Tek employee and lived in
Beaverton, not far from me.
He restored my two 547's in the 90's. He was a firm believer in giving
the scopes a high pressure wash, then a through dry in an oven he made out
of an old refrigerator. Guess it worked. I also traded him some 500
series plug-ins.
Would love to reconnect if he is still alive.
Thanks,
Grayson, KJ7UM






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

 



Mike Dinolfo N4MWP

On 9/28/20 10:37 AM, Grayson Evans wrote:
Stan wrote: Oscilloscopes: Selecting and Restoring a Classic, which I think is way out of print. Fortunately I still have my copy and use it all the time to ID Tek scopes and plug-ins. He was a Tek employee and lived in Beaverton, not far from me.
He restored my two 547's in the 90's. He was a firm believer in giving the scopes a high pressure wash, then a through dry in an oven he made out of an old refrigerator. Guess it worked. I also traded him some 500 series plug-ins.
Would love to reconnect if he is still alive.
Thanks,
Grayson, KJ7UM




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

 

Regrettably Stan has passed on.

There are second-hand copies of his book available but they are very, very expensive (between $70 and $300).

DaveD

On Sep 28, 2020, at 10:37, Grayson Evans <wa4gvm@...> wrote:

Stan wrote: Oscilloscopes: Selecting and Restoring a Classic, which I think is way out of print. Fortunately I still have my copy and use it all the time to ID Tek scopes and plug-ins. He was a Tek employee and lived in Beaverton, not far from me.
He restored my two 547's in the 90's. He was a firm believer in giving the scopes a high pressure wash, then a through dry in an oven he made out of an old refrigerator. Guess it worked. I also traded him some 500 series plug-ins.
Would love to reconnect if he is still alive.
Thanks,
Grayson, KJ7UM





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

 

Stan wrote: Oscilloscopes: Selecting and Restoring a Classic, which I think is way out of print. Fortunately I still have my copy and use it all the time to ID Tek scopes and plug-ins. He was a Tek employee and lived in Beaverton, not far from me.
He restored my two 547's in the 90's. He was a firm believer in giving the scopes a high pressure wash, then a through dry in an oven he made out of an old refrigerator. Guess it worked. I also traded him some 500 series plug-ins.
Would love to reconnect if he is still alive.
Thanks,
Grayson, KJ7UM


How to make a 500 series plug-in extender

 

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


Re: Soul searching = Lab Purge

 

Life is short. I am also slowly unloading years of meaningless material cruft. It's a good thing.


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

Chuck Harris
 

X-Y mode should have been disabled in the 2467 MCP scopes, but
it wasn't, so they added a timer circuit board that integrates the
beam current and the sweep speed in some way, and decides when the
beam has to be shut off.

That circuit board is trying to save your scope from damage.

-Chuck Harris

Sscandizzo@... wrote:

Hi Guys,

Similarly, my 2467B is behaving in the exact same manner: in XY mode flashing the expected waveform briefly, then going blank. Is this, in fact, a form of screen protection. or something else?

Thanks,
Stefan






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

 

Hi Guys,

Similarly, my 2467B is behaving in the exact same manner: in XY mode flashing the expected waveform briefly, then going blank. Is this, in fact, a form of screen protection. or something else?

Thanks,
Stefan


Re: 465B Horizontal Trace Issues - Help requested

 

Thanks very much for creating that doc -- I'm sure it has helped and will help many!

-- Cheers,
Tom

--
Prof. Thomas H. Lee
Allen Ctr., Rm. 205
350 Jane Stanford Way
Stanford University
Stanford, CA 94305-4070

On 9/27/2020 11:01, pdxareaid wrote:
In case it helps...several years ago, after dealing with a failed tantalum cap...I compiled info for the 465B to make the next one easy to find.
It is in the files section of this forum but here is a direct link. It is sortable by clicking column headers. Good luck.
/g/TekScopes/files/465Btants.html
ignore the email address in it. I lost editing rights in the yahoo->groupsio move.





Re: Shipping Scopes

 

Dave,
I missed the Uber reference but you are correct. I will pickup the piece equipment from where it is located and than deliver it to the buyer. The buyer pays the seller and then the buyer and/or seller pays me half of the shipping which is based on mileage and then the other half is paid on delivery.
GOD Bless and Thanks,
rich!

On 9/23/2020 8:47 PM, Dave Seiter wrote:
It's like Uber for scopes! If I ever find a 570 and can't retrieve it myself, I'll keep you in mind!
-Dave
On Wednesday, September 23, 2020, 03:32:29 PM PDT, Richard R. Pope <mechanic_2@...> wrote:
Hello all,
And this is why I offer a premium delivery service. Expensive but
the equipment is handled by just me. It will not be dropped, spindled,
nor mutilated and it is kept in a climate controlled environment. I
will pick up anywhere in the lower 48 and deliver to anywhere else in
the lower 48. Please contact off list for details?
GOD Bless Bless and Thanks,
rich!

On 9/23/2020 4:38 PM, John Williams wrote:
Good advice. Having shipped and received literally hundreds of tube scopes, there is always a few things overlooked. One that is ALWAYS overlooked is the crt. The crt in these old scopes is supported in only two places, that is the front panel and the rear socket. The front support is very rigid. The back support however is usually a white plastic ring that may be used to rotate the tube. Sadly this plastic is the kind that eventually hardens. It does not take much force to break it. Even time can cause it to fail. Now when the packed scope gets dropped by the carrier, and it WILL get dropped, the crt is unsupported and will usually break in half at the neck. All carriers use conveyor belts, and a package this size sometimes falls off the conveyor to the concrete floor. I have even seen the UPS driver, when picking up a box clearly marked fragile in 10 places actually THROW the box into his truck. CRTs are getting very hard to find, so if yours gets broken the whole scope may be junk.

I have also received scopes in their original Tektronix shipping box, unopened. There is no way this box could survive shipping conditions today. It always has to be packed inside another box.

I know of no easy answer to this. I have sometimes removed the crt and packed it separately in a proper Tektronix crt box. This is good but increases the cost. I have also received scopes with some packing material around the crt inside the mu-metal shield. As I recall this had limited success. Oh and btw no carrier will insure glass.

Any time you ship it is a crap shoot. All you can do is try to make sure your package can be dropped 6 feet onto concrete and you are ok. Maybe. Good luck.

I














Re: 465B Horizontal Trace Issues - Help requested

 

In case it helps...several years ago, after dealing with a failed tantalum cap...I compiled info for the 465B to make the next one easy to find.
It is in the files section of this forum but here is a direct link. It is sortable by clicking column headers. Good luck.
/g/TekScopes/files/465Btants.html
ignore the email address in it. I lost editing rights in the yahoo->groupsio move.


Re: Soul searching = Lab Purge

 

I did. But just in case you missed it northeastern Massachusetts.

On September 27, 2020 1:11:30 PM "Dave Daniel" <kc0wjn@...> wrote:

David,

You don¡¯t write where you are located.

DaveD

On Sep 27, 2020, at 12:23, David Berlind <david@...> wrote:

Hey all,

After dealing with some pretty serious health issues since March and looking around at my family, I have decided to devote more of my free time to activities with loved ones like sailing, making music, hiking, etc. and less time in my man cave with electronics. It's just something I have to let go of. Life is so precious and so are relationships and while this hobby and the members of this group have given me so much and my health is much better now, these last months have taught me that we can be taken from this earth in a blink of an eye and I should probably spend my time between now and then (whenever that is) on the things that really matter in my life; people. I will maintain a minimal lab so I can fix stuff from time to time. But I'm going to sell off most of my collection of gear and a good handful of old tube radios. Also, all my ham stuff. It will be a lot of work and probably take me through the winter to post all the information, photos, working condition, etc. But I just took a swing through the lab to make a few notes and I'd thought I'd share here what I am going to get rid off. This is NOT the complete list. It was just a casual stroll around the basement. I haven't set prices yet but would entertain non-low-ball numbers. I paid fair money for most of this stuff and it's not like I'm in a major hurry to get rid of it. I just don't want my wife to have to deal with it all by herself at some point in the hopefully very distant future. The mainframes are mostly loaded with very standard modules, nothing exotic (the 7633 is empty). I haven't thought about whether to sell the modules separately or keep the loaded mainframes intact. I live in Northeastern Massachusetts.

Tektronix
1 T935 (1 bent BNC jack)
2 547 (very clean and unmolested)
1 2220
1 466
1 7603
1 OS-245PU (ruggedized mil spec version of the 7603)
1 7603/R (to this group only, I will give this away since it was given to me by a member of the group. But you have to come get it. It's a backbreaker).
1 577 Curve Tracer

Other
HP Universal Counter 5335A
BK Precision Model 1601 Power Supply
Data Precision 5740 Frequency Counter
Heathkit IT-28
Heathkit IT-11
Telohmike T0-6
HP 200 CD
HP 200 AB
Kapco HB2AH Power Supply (very clean but needs work)
Heathkit IM-28 VTVM
HP 606B Signal Generator

David






Re: Soul searching = Lab Purge

 

David,

You don¡¯t write where you are located.

DaveD

On Sep 27, 2020, at 12:23, David Berlind <david@...> wrote:

Hey all,

After dealing with some pretty serious health issues since March and looking around at my family, I have decided to devote more of my free time to activities with loved ones like sailing, making music, hiking, etc. and less time in my man cave with electronics. It's just something I have to let go of. Life is so precious and so are relationships and while this hobby and the members of this group have given me so much and my health is much better now, these last months have taught me that we can be taken from this earth in a blink of an eye and I should probably spend my time between now and then (whenever that is) on the things that really matter in my life; people. I will maintain a minimal lab so I can fix stuff from time to time. But I'm going to sell off most of my collection of gear and a good handful of old tube radios. Also, all my ham stuff. It will be a lot of work and probably take me through the winter to post all the information, photos, working condition, etc. But I just took a swing through the lab to make a few notes and I'd thought I'd share here what I am going to get rid off. This is NOT the complete list. It was just a casual stroll around the basement. I haven't set prices yet but would entertain non-low-ball numbers. I paid fair money for most of this stuff and it's not like I'm in a major hurry to get rid of it. I just don't want my wife to have to deal with it all by herself at some point in the hopefully very distant future. The mainframes are mostly loaded with very standard modules, nothing exotic (the 7633 is empty). I haven't thought about whether to sell the modules separately or keep the loaded mainframes intact. I live in Northeastern Massachusetts.

Tektronix
1 T935 (1 bent BNC jack)
2 547 (very clean and unmolested)
1 2220
1 466
1 7603
1 OS-245PU (ruggedized mil spec version of the 7603)
1 7603/R (to this group only, I will give this away since it was given to me by a member of the group. But you have to come get it. It's a backbreaker).
1 577 Curve Tracer

Other
HP Universal Counter 5335A
BK Precision Model 1601 Power Supply
Data Precision 5740 Frequency Counter
Heathkit IT-28
Heathkit IT-11
Telohmike T0-6
HP 200 CD
HP 200 AB
Kapco HB2AH Power Supply (very clean but needs work)
Heathkit IM-28 VTVM
HP 606B Signal Generator

David





Soul searching = Lab Purge

 

Hey all,

After dealing with some pretty serious health issues since March and looking around at my family, I have decided to devote more of my free time to activities with loved ones like sailing, making music, hiking, etc. and less time in my man cave with electronics. It's just something I have to let go of. Life is so precious and so are relationships and while this hobby and the members of this group have given me so much and my health is much better now, these last months have taught me that we can be taken from this earth in a blink of an eye and I should probably spend my time between now and then (whenever that is) on the things that really matter in my life; people. I will maintain a minimal lab so I can fix stuff from time to time. But I'm going to sell off most of my collection of gear and a good handful of old tube radios. Also, all my ham stuff. It will be a lot of work and probably take me through the winter to post all the information, photos, working condition, etc. But I just took a swing through the lab to make a few notes and I'd thought I'd share here what I am going to get rid off. This is NOT the complete list. It was just a casual stroll around the basement. I haven't set prices yet but would entertain non-low-ball numbers. I paid fair money for most of this stuff and it's not like I'm in a major hurry to get rid of it. I just don't want my wife to have to deal with it all by herself at some point in the hopefully very distant future. The mainframes are mostly loaded with very standard modules, nothing exotic (the 7633 is empty). I haven't thought about whether to sell the modules separately or keep the loaded mainframes intact. I live in Northeastern Massachusetts.

Tektronix
1 T935 (1 bent BNC jack)
2 547 (very clean and unmolested)
1 2220
1 466
1 7603
1 OS-245PU (ruggedized mil spec version of the 7603)
1 7603/R (to this group only, I will give this away since it was given to me by a member of the group. But you have to come get it. It's a backbreaker).
1 577 Curve Tracer

Other
HP Universal Counter 5335A
BK Precision Model 1601 Power Supply
Data Precision 5740 Frequency Counter
Heathkit IT-28
Heathkit IT-11
Telohmike T0-6
HP 200 CD
HP 200 AB
Kapco HB2AH Power Supply (very clean but needs work)
Heathkit IM-28 VTVM
HP 606B Signal Generator

David


Re: Bunch of FREE vintage test equipment in NH (USA)

Roy Morgan
 

Posting deleted by its author. (9:30 AM)

Roy Morgan
K1LKY Western Mass

On Sep 27, 2020, at 3:51 AM, Jay Walling via groups.io <jayw_comark@...> wrote:

?
No affiliation. Good luck!
Jay