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Hi George,

The 3C66 interfaces to a wide variety of mechanical transducers. This allows
display of all kinds of mechanical measurements on the CRT face such as
vibration, mechanical shock, shaft rotation, etc.

Stan
w7ni@...

George wrote:

What does a 3C66 carrier amplifier do, or what do you use it for?

Thanks!

George

I'm not sure how helpful this is, but the government calibration

manual

for the TU-7 / 1M1 / 067-0521-00 / 067-0521-01 is available online:

That can be some handy information. But be forewarned about U.S.
Army calibration T.O.s (Technical Orders) which the USAF also uses.
I have seen some that leave a lot to be desired. For instance, the
Army calibration guys (only one of two calibration resources on
Okinawa; the other was at Kadena AFB) were contracted to come to the
Hanza USNSGA site for semi-annual calibrations. I noticed that a
Hewlett-Packard 606A HF signal generator that I'd sent out there came
back with one of the bands loaded with harmonics and a non-sinusoidal
output. I showed them the generator and told that that this was a
problem that was taken care of with calibration. Then I saw the T.O.
that they were REQUIRED to use (against regulations to use HP's
service manual for calibration!) and it never even have them adjust
the oscillator frequency or the output amplifier tank -- that's half
of the calibration of a 606A/B! Since I was in Navy calibration
(couldn't legally do the stuff at the time at our site because of
limited standards) I patiently showed the Army techs the manual and
how to calibrate a 606A's RF section. They told me that it was
against regulations for them to use anything but the Army T.O. -- and
then asked me for a copy of the HP 606A calibration procedure so that
it could be done right!

Just saying that you need to be wary that you might not get a
complete procedure with an Army/Air Force T.O. The one noted in this
series of posts appears to be a retyped copy of the Tek procedure.

By the way, the Navy used the manufacturer's procedure first and then
a Navy procedure if the manufacturer's manual wasn't available. The
Navy Calibration stuff at Pomona is available if you have the right
government connections. Danged shame that stuff like that that
should be public domain is not available to the public.

Dean

I'm not sure how helpful this is, but the government calibration manual
for the TU-7 / 1M1 / 067-0521-00 / 067-0521-01 is available online:

Hi George,

I think you can get by just fine with the 067-0521-00 manual for maintaining
your 067-0521-01. Those units require almost zero maintenance anyway. You
will probably never have occasion to use the manual except maybe to read
about how to use the features of the test plugin. In that regard, the TU7,
1M1, 067-0521-00, and 067-0521-01 are virtually the same.

Stan
w7ni@...

George wrote:

--- In TekScopes@y..., Stan or Patricia Griffiths <w7ni@e...> wrote:

Hi Marc,

Yes, the 1M1 is a very good tool to use in adjusting and checking a

545A.

the 1M1 was also known as the TU-7 earlier and then the 067-0521-00

later.

I have a 067-0521-01, how much different is this and would a
067-0521-00 manual be sufficient for maintenance and usage of this
unit?

Thanks!

Hi Marc,

Yes, the 1M1 is a very good tool to use in adjusting and checking a 545A.
the 1M1 was also known as the TU-7 earlier and then the 067-0521-00 later.
It is a newer instrument than the 545A but much better than what was used in
the factory to check out new 545A's (I know . . . I did that for a living in
1960-61.)

I don't think I have a 1M1 manual, but a manual for either a TU-7 or
067-0521-00 will work almost as well. You might check my eBay auctions
occasionally since I sell a LOT of Tek manuals there.

Stan
w7ni@...

marc ellis wrote:

Would a 1M1 Test Unit plug-in be a useful tool in checking and setting up
out a long-disused 545A scope? I have the plug-in but am not sure of its
intended application.

Sure.

Does anyone have a 1M1 manual (or copy of same) for sale?

This plugin is also known as the 067-0521-00. Manuals are available from:

Bob Howard
howardr@...


Ron Ford
W.J. Ford Surplus Enterprises
testequipment@...

(rental)

Two-part query:

Would a 1M1 Test Unit plug-in be a useful tool in checking and setting up
out a long-disused 545A scope? I have the plug-in but am not sure of its
intended application.

Does anyone have a 1M1 manual (or copy of same) for sale?

Marc Ellis

Hi, Don,

The grounding spring you need was used in about 30 different models
of Tek scopes, so if you find a complete junker anywhere, you may
also find the part.

The pouch lip can be a problem. Tek did sell those as separate parts
and you had to stake it to the case keeping the blobs on the inside
tight enough that it didn't interfere with sliding the case on and
off. The you MIGHT be able to reuse one, but it'll be touchy.
Again, no matter whether you're talking 465, 434, 475, etc., they
were all the same part.

Air filters: don't buy Tek and don't go out of your way to find the
filter material. Head down to your local Dollar General, Dollar
Mart, Everything-Under-A-Dollar or whatever the name of the store is
that undersells Wallyworld and buy the GENERIC Scotchbrite-like
scrubbing pads and cut them to fit. Get the non-green ones if you
can, for they tend to be even less abrasive than the green ones (and
the generic green ones don't hold a candle to the real Scotchbrite
for agressiveness). If you're in a really dusty environment, give
the filter material a quick, light shot of Pam (the spray oil for
kitchen use, generic is fine, of course) and wash and respray the
filter monthly.

The TAS465 I believe was one of Tek's big mistakes (Telequipment was
another) and were import items not of actual Tek manufacture. Stan
Griffiths can tell you all kinds of stuff about those.

Dean

PN 131-1428-00 CONTACT,ELEC:GROUNDING CLIP Bottom board HV

shield

to "can" contact.
PN 352-0263-00 HLDR,POUCH ASSY: Blue plastic

piece at

the front top of the "can".
PN 378-0044-01 FILTER ELEM,AIR:2.5 X 2.5 X 0.25 Air filter

element.

The plastic pouch holder piece is the most important to me. Anyone

out

there parting out a 465B, perhaps with an otherwise unuseable can?

Next question has to do with a different animal altogether, a Tek

TAS 465.

I will probably regret combining these two instruments in one email

due to

the confusion over the shared numeric designator. I have acquired

(another

"free to a good home") broken TAS 465 100MHz 2ch analog scope and

with it

came an instruction manual (070-8523-03). This manual has very

limited

service info. I would like to confirm if a separate service manual

exists?

Would anyone have one to sell? I've tried the usual manual sources

(except

Tek). The serial number on this scope is BR10900. I know that

sounds odd,

but that's what is on the label. Would anyone also know what "BR"
signifies in the serial number? Perhaps it wasn't made in

Beaverton....

Thank you.

Don

Ashton Brown wrote:

Laurent Lamesch wrote:

dhuster@... wrote:

...

And regarding nuclear research, I remember a field engineer telling
me about selling a lot of transient digitizers to the nuclear
research community. They'd put a TD down a hole with a bomb with the
cabling leading to the blockhouse a couple of miles away. They'd
blow up the bomb and the TD would send the signal out of all the
stuff they were monitoring -- about 1???s before it went into total
meltdown -- and then in the blockhouse monitoring station, they'd
wait for the signal to show up and then after it was captured, high-
speed clamps shut the lines down so the the massive EMP that was
right on the tail of the data didn't totally destroy all the
monitoring equipment. But the poor transient digitizers .... they
got to make one and only one measurement in their entire lives before
that serial number ceased to exist. Danged expensive probe!

Dean

Concerning 'strange' uses of TDs: I have a problem with a 7912AD
which apparantly has been used in the Sandia National Labs (it has
a Sandia cal sticker from 1993). While repairing the power supply,
I got some fine light brown dust present in the supply on my fingers.
After some minutes I had the impression that the dust warmed my
fingers up, I also had a salty taste in my mouth after working on
the supply. I let the TD run for some time with the case open, and
the TD's fan obviously spread some of that dust inside the room I
normally work in. During the weeks which followed, after being some
hours in the same room, I got a slight headache and nausea unless
I opened the door for letting fresh air in.

The problem is that I neither know if this dust is bad for my health,
nor what to do to find out what the dust is. Does anyone have a clue
what it might be, or has anyone ever seen something similar?

Laurent Lamesch

To unsubscribe from this group, send an email to:
TekScopes-unsubscribe@...



Your use of Yahoo! Groups is subject to

I'll try the e-mail response this time; can't get to Yahoo at moment -
and post this later, if it doesn't show up on web:

WHERE is ".lu" ??

RUN, do not walk - to somewhere local where you can borrow a geiger
counter. If you can't find one, I can send you a Monitor4, about the
size of a calculator -- but that will take DAYS - depending upon where
.lu IS. If there is a Radiation exposure .org nearby or even many miles
away: CALL THEM NOW !!!

SWAB your entire body with damp paper towels and put these in Ziplock
bag. Have your family (?) do likewise - it may be a false alarm and
your symptoms (of flu, etc) merely coincidence.. but the salty taste is
hardly likely from 'flu'.

SAVE all dust in a Ziplock bag. *BAG that counter* and maybe tape the
door to that room SHUT, pending more INFORMATION. I spent one career in
physics research / accelerators: you are describing symptoms of a
possibly Bad emitter of betas and gammas - IF>> alphas also are present:

HOPE you did not touch your tongue, eyes with your dusty fingers..
Outside body, alphas are not much of a problem; typ. a piece of paper
will shield from their also massively *greater ionizing power*: they are
Helium nuclei, after all = Heavy.

This is an EMERGENCY SITUATION, IMO and from what you said. I will cc:
this to your e-mail as well as the forum. E-mail me for a phone
exchange, when you get this. Sounds as if you are unaware of some
radiation basics, which you next need to find out.

SAVE everything you had that equipment around since purchase - packing,
RECEIPTS etc - IF your instinct is right and the symptoms too - someone
has made an utterly UNACCEPTABLE ERROR, beginning with SANDIA LABS, who
may be paying your air fare for decontamination. They may be NEXT place
you call, after local help...

In haste,

Ashton
ex- Lawrence Berkeley Lab.

Hello, thank you for your mail.

So I went immediately to the ministry of radiation protection in
Luxembourg and took the 7912 with me. We dismantled the power supply
there after ckecking the radiation outside the housing, and the
responsible person measured the beta and gamma radiation inside with
a geiger counter. Nothing could be detected except the normal natural
radiation. He took some probes of the dust and put them into a 'low
level counter' which measures the alpha and beta radiation (? the
measurement unit was bq, the instrument is normally used to measure
the 'natural' radiation from elements present in the earth in some
regions), and here too nothing could be detected apart from the normal
background radiation.

Are the symptoms I described typical for a contamination? Do you have
experienced simliar situations, or do you have other experience in this
field? Do you think the measurements I described are sufficient? The
responsible person proposed to make a measurement of the contamination
of the air in my room if I wanted to be really sure about it, but he did
not insist.

Anyway, I'm afraid it seems that I still don't know what the source of
the problem is...

Laurent Lamesch

Hi Don,

The Service Manual for the TAS465 is part number 070-8524-01. I have a copy
of one in my workshop (not for sale).

The only problem being is that I live in Sydney, Australia.

Best Regards,

Andrew Campbell

Laurent Lamesch wrote:

dhuster@... wrote:

...

And regarding nuclear research, I remember a field engineer telling
me about selling a lot of transient digitizers to the nuclear
research community. They'd put a TD down a hole with a bomb with the
cabling leading to the blockhouse a couple of miles away. They'd
blow up the bomb and the TD would send the signal out of all the
stuff they were monitoring -- about 1???s before it went into total
meltdown -- and then in the blockhouse monitoring station, they'd
wait for the signal to show up and then after it was captured, high-
speed clamps shut the lines down so the the massive EMP that was
right on the tail of the data didn't totally destroy all the
monitoring equipment. But the poor transient digitizers .... they
got to make one and only one measurement in their entire lives before
that serial number ceased to exist. Danged expensive probe!

Dean

Concerning 'strange' uses of TDs: I have a problem with a 7912AD
which apparantly has been used in the Sandia National Labs (it has
a Sandia cal sticker from 1993). While repairing the power supply,
I got some fine light brown dust present in the supply on my fingers.
After some minutes I had the impression that the dust warmed my
fingers up, I also had a salty taste in my mouth after working on
the supply. I let the TD run for some time with the case open, and
the TD's fan obviously spread some of that dust inside the room I
normally work in. During the weeks which followed, after being some
hours in the same room, I got a slight headache and nausea unless
I opened the door for letting fresh air in.

The problem is that I neither know if this dust is bad for my health,
nor what to do to find out what the dust is. Does anyone have a clue
what it might be, or has anyone ever seen something similar?

Laurent Lamesch

To unsubscribe from this group, send an email to:
TekScopes-unsubscribe@...



Your use of Yahoo! Groups is subject to

I'll try the e-mail response this time; can't get to Yahoo at moment -
and post this later, if it doesn't show up on web:

WHERE is ".lu" ??

RUN, do not walk - to somewhere local where you can borrow a geiger
counter. If you can't find one, I can send you a Monitor4, about the
size of a calculator -- but that will take DAYS - depending upon where
.lu IS. If there is a Radiation exposure .org nearby or even many miles
away: CALL THEM NOW !!!

SWAB your entire body with damp paper towels and put these in Ziplock
bag. Have your family (?) do likewise - it may be a false alarm and
your symptoms (of flu, etc) merely coincidence.. but the salty taste is
hardly likely from 'flu'.

SAVE all dust in a Ziplock bag. *BAG that counter* and maybe tape the
door to that room SHUT, pending more INFORMATION. I spent one career in
physics research / accelerators: you are describing symptoms of a
possibly Bad emitter of betas and gammas - IF>> alphas also are present:

HOPE you did not touch your tongue, eyes with your dusty fingers..
Outside body, alphas are not much of a problem; typ. a piece of paper
will shield from their also massively *greater ionizing power*: they are
Helium nuclei, after all = Heavy.

This is an EMERGENCY SITUATION, IMO and from what you said. I will cc:
this to your e-mail as well as the forum. E-mail me for a phone
exchange, when you get this. Sounds as if you are unaware of some
radiation basics, which you next need to find out.

SAVE everything you had that equipment around since purchase - packing,
RECEIPTS etc - IF your instinct is right and the symptoms too - someone
has made an utterly UNACCEPTABLE ERROR, beginning with SANDIA LABS, who
may be paying your air fare for decontamination. They may be NEXT place
you call, after local help...

In haste,

Ashton
ex- Lawrence Berkeley Lab.

If you know someone with a geiger counter, it might be a good idea to go over
that instrument with it . . . just as a precaution, you understand. This is
a serious suggestion.

Stan
w7ni@...

Laurent Lamesch wrote:

Hi Don,

The Service Manual for the TAS465 is part number 070-8524-01. I have a copy
of one in my workshop (not for sale).

The only problem being is that I live in Sydney, Australia.

Best Regards,

Andrew Campbell

dhuster@... wrote:

...

And regarding nuclear research, I remember a field engineer telling
me about selling a lot of transient digitizers to the nuclear
research community. They'd put a TD down a hole with a bomb with the
cabling leading to the blockhouse a couple of miles away. They'd
blow up the bomb and the TD would send the signal out of all the
stuff they were monitoring -- about 1???s before it went into total
meltdown -- and then in the blockhouse monitoring station, they'd
wait for the signal to show up and then after it was captured, high-
speed clamps shut the lines down so the the massive EMP that was
right on the tail of the data didn't totally destroy all the
monitoring equipment. But the poor transient digitizers .... they
got to make one and only one measurement in their entire lives before
that serial number ceased to exist. Danged expensive probe!

Dean

Concerning 'strange' uses of TDs: I have a problem with a 7912AD
which apparantly has been used in the Sandia National Labs (it has
a Sandia cal sticker from 1993). While repairing the power supply,
I got some fine light brown dust present in the supply on my fingers.
After some minutes I had the impression that the dust warmed my
fingers up, I also had a salty taste in my mouth after working on
the supply. I let the TD run for some time with the case open, and
the TD's fan obviously spread some of that dust inside the room I
normally work in. During the weeks which followed, after being some
hours in the same room, I got a slight headache and nausea unless
I opened the door for letting fresh air in.

The problem is that I neither know if this dust is bad for my health,
nor what to do to find out what the dust is. Does anyone have a clue
what it might be, or has anyone ever seen something similar?

Laurent Lamesch

Hello all,

My first post to this very interesting newsgroup, so I hope this message
makes it out ok.

I would like to acquire any of the following parts for a standard 465B. My
scope was rescued from the dumpster (!) and is completely refurbished save
one each from this list:

PN 131-1428-00 CONTACT,ELEC:GROUNDING CLIP Bottom board HV shield
to "can" contact.
PN 352-0263-00 HLDR,POUCH ASSY: Blue plastic piece at
the front top of the "can".
PN 378-0044-01 FILTER ELEM,AIR:2.5 X 2.5 X 0.25 Air filter element.

The plastic pouch holder piece is the most important to me. Anyone out
there parting out a 465B, perhaps with an otherwise unuseable can?

Next question has to do with a different animal altogether, a Tek TAS 465.
I will probably regret combining these two instruments in one email due to
the confusion over the shared numeric designator. I have acquired (another
"free to a good home") broken TAS 465 100MHz 2ch analog scope and with it
came an instruction manual (070-8523-03). This manual has very limited
service info. I would like to confirm if a separate service manual exists?
Would anyone have one to sell? I've tried the usual manual sources (except
Tek). The serial number on this scope is BR10900. I know that sounds odd,
but that's what is on the label. Would anyone also know what "BR"
signifies in the serial number? Perhaps it wasn't made in Beaverton....

Thank you.

Don

Hi All,

My name is Andrew Campbell and I live in Sydney, Australia.

I am an ex-Tektronix employee (Feb this year) and I am now working
for another company. I'm into repairing and calibrating 'old' tek
scopes.

Great to finally find a discussion list, hopefully I'll be of some
help to someone out there and that there are some of you that may be
able to help me.

Look forward to being part of this group.

Regards,

Andrew

Can anybody accomodate Curt ? (see below).

Please reply directly to him.

Phil

And regarding nuclear research, I remember a field engineer telling
me about selling a lot of transient digitizers to the nuclear
research community. They'd put a TD down a hole with a bomb with the
cabling leading to the blockhouse a couple of miles away. They'd
blow up the bomb and the TD would send the signal out of all the
stuff they were monitoring -- about 1???s before it went into total
meltdown -- and then in the blockhouse monitoring station, they'd
wait for the signal to show up and then after it was captured, high-
speed clamps shut the lines down so the the massive EMP that was
right on the tail of the data didn't totally destroy all the
monitoring equipment. But the poor transient digitizers .... they
got to make one and only one measurement in their entire lives before
that serial number ceased to exist. Danged expensive probe!

Dean

Yes, I think a lot of 519 scopes suffered a similar nuclear fate. In those
cases, they used polaroid cameras on them and the scopes and cameras were not
exactly melted down . . . just radiated so intensely that they were too "hot"
for anyone to use. As I understand it, some guy in a protective suit would
go rescue the exposed film and they would bury the scopes and cameras. Those
were "one-shot" deals, too. There are some pretty pristine 519's in a vault
somewhere . . .

Stan
w7ni@...