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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

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)

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:

--- 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 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:

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:

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