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Alan Scrimgeour

Tue, Nov 16, 2010 8:53 PM

Problem solved then. Give us the manuals!!!

Scrim
----- Original Message -----
From: "J. Forster" jfor@quik.com
To: "Discussion of precise voltage measurement" volt-nuts@febo.com
Sent: Tuesday, November 16, 2010 6:16 PM
Subject: Re: [volt-nuts] Keithley 2001 - and Tek gear

True.

A friend of mine set up a plant to clone Tek scopes for a military
contract. Tek caught on and drilled a couple of holes in the chassis that
were unused. The cloner reproduced the scope including those holes. Tek
sued and won. This was in the early to mid 1960s.

Best,

-John

=============

Not to hijack a thread or get off topic, but that's why we love the older
Tek gear. Their documentation was first rate. That voluminous and
detailed documentation did come back to bite them, though.

I read story in " Winning with people: The first 40 years of Tektronix"
about the Tek people discovering counterfeit scopes that the military
(Navy?) was having built. As part of their contract to supply scopes
they
had to supply documentation that amounted to a detailed build manual for
the product. Once the military customer had the documentation they
shopped it around to contract manufacturers and found somebody who would
build the scopes to print for, presumably, a lower price than the genuine
Tek unit.

Looks like there is such a thing as too much information :)

-John

-----Original Message-----
From: volt-nuts-bounces@febo.com [mailto:volt-nuts-bounces@febo.com] On
Behalf Of Peter Loron
Sent: Monday, November 15, 2010 5:52 PM
To: Discussion of precise voltage measurement
Subject: Re: [volt-nuts] Keithley 2001

It's really a shame...I was reading through the manual for the Tek 131
current probe amplifier yesterday. Not only do they provide detailed
part listings and schematics on top of the troubleshooting steps, they
also provide directions on how to modify it to work as a general purpose
voltage amp! "...solder the resistor here..."

-Pete

On Mon, 2010-11-15 at 15:48 -0800, Randy Scott wrote:

I just got the same answer from Keithley today: "We no longer provide
schematics for our equipment." Bummer.

Also, in case anyone was curious, the new transformer for the 2001 is
going to cost $157 USD.

Randy.

--- On Sun, 11/14/10, Alan Scrimgeour scrimgap@blueyonder.co.uk wrote:

From: Alan Scrimgeour scrimgap@blueyonder.co.uk
Subject: Re: [volt-nuts] Keithley 2001
To: "Discussion of precise voltage measurement" volt-nuts@febo.com
Date: Sunday, November 14, 2010, 4:30 AM
I contacted Keithley regarding the
schematic. It's itemised in the contents of one of the
manuals, or referred to in its text, but those pages of the
manual are missing. Keithley said it's not available. Any
ideas anyone?

Alan

----- Original Message ----- From: "Raj" vu2zap@gmail.com
To: "Discussion of precise voltage measurement" volt-nuts@febo.com
Sent: Sunday, November 14, 2010 3:33 AM
Subject: Re: [volt-nuts] Keithley 2001

I have one too..

http://www.keithley.com/support/keidoc_searchresult?keyword=2001&item_type=Manual

No schematic there.

At 14-11-2010, you wrote:

Does anyone have schematics for the Keithley 2001

multimeter? I received one today with a blown up
transformer. I'd like to have a look at the automatic
AC input voltage selection circuit before replacing the
transformer.

Thanks.

Randy.

-- Raj, VU2ZAP
Bangalore, India.

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Problem solved then. Give us the manuals!!! Scrim ----- Original Message ----- From: "J. Forster" <jfor@quik.com> To: "Discussion of precise voltage measurement" <volt-nuts@febo.com> Sent: Tuesday, November 16, 2010 6:16 PM Subject: Re: [volt-nuts] Keithley 2001 - and Tek gear > True. > > A friend of mine set up a plant to clone Tek scopes for a military > contract. Tek caught on and drilled a couple of holes in the chassis that > were unused. The cloner reproduced the scope including those holes. Tek > sued and won. This was in the early to mid 1960s. > > Best, > > -John > > ============= > > > >> Not to hijack a thread or get off topic, but that's why we love the older >> Tek gear. Their documentation was first rate. That voluminous and >> detailed documentation did come back to bite them, though. >> >> I read story in " Winning with people: The first 40 years of Tektronix" >> about the Tek people discovering counterfeit scopes that the military >> (Navy?) was having built. As part of their contract to supply scopes >> they >> had to supply documentation that amounted to a detailed build manual for >> the product. Once the military customer had the documentation they >> shopped it around to contract manufacturers and found somebody who would >> build the scopes to print for, presumably, a lower price than the genuine >> Tek unit. >> >> Looks like there is such a thing as too much information :) >> >> >> -John >> >> >> -----Original Message----- >> From: volt-nuts-bounces@febo.com [mailto:volt-nuts-bounces@febo.com] On >> Behalf Of Peter Loron >> Sent: Monday, November 15, 2010 5:52 PM >> To: Discussion of precise voltage measurement >> Subject: Re: [volt-nuts] Keithley 2001 >> >> It's really a shame...I was reading through the manual for the Tek 131 >> current probe amplifier yesterday. Not only do they provide detailed >> part listings and schematics on top of the troubleshooting steps, they >> also provide directions on how to modify it to work as a general purpose >> voltage amp! "...solder the resistor here..." >> >> -Pete >> >> On Mon, 2010-11-15 at 15:48 -0800, Randy Scott wrote: >>> I just got the same answer from Keithley today: "We no longer provide >>> schematics for our equipment." Bummer. >>> >>> Also, in case anyone was curious, the new transformer for the 2001 is >>> going to cost $157 USD. >>> >>> Randy. >>> >>> >>> >>> --- On Sun, 11/14/10, Alan Scrimgeour <scrimgap@blueyonder.co.uk> wrote: >>> >>> > From: Alan Scrimgeour <scrimgap@blueyonder.co.uk> >>> > Subject: Re: [volt-nuts] Keithley 2001 >>> > To: "Discussion of precise voltage measurement" <volt-nuts@febo.com> >>> > Date: Sunday, November 14, 2010, 4:30 AM >>> > I contacted Keithley regarding the >>> > schematic. It's itemised in the contents of one of the >>> > manuals, or referred to in its text, but those pages of the >>> > manual are missing. Keithley said it's not available. Any >>> > ideas anyone? >>> > >>> > Alan >>> > >>> > ----- Original Message ----- From: "Raj" <vu2zap@gmail.com> >>> > To: "Discussion of precise voltage measurement" <volt-nuts@febo.com> >>> > Sent: Sunday, November 14, 2010 3:33 AM >>> > Subject: Re: [volt-nuts] Keithley 2001 >>> > >>> > >>> > > I have one too.. >>> > > >>> > > http://www.keithley.com/support/keidoc_searchresult?keyword=2001&item_type=Manual >>> > > >>> > > No schematic there. >>> > > >>> > > At 14-11-2010, you wrote: >>> > >> Does anyone have schematics for the Keithley 2001 >>> > multimeter? I received one today with a blown up >>> > transformer. I'd like to have a look at the automatic >>> > AC input voltage selection circuit before replacing the >>> > transformer. >>> > >> >>> > >> Thanks. >>> > >> >>> > >> Randy. >>> > > >>> > > -- Raj, VU2ZAP >>> > > Bangalore, India. >>> > > >>> > > >>> > > _______________________________________________ >>> > > volt-nuts mailing list -- volt-nuts@febo.com >>> > > To unsubscribe, go to >>> https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts >>> > > and follow the instructions there. >>> > >>> > >>> > _______________________________________________ >>> > volt-nuts mailing list -- volt-nuts@febo.com >>> > To unsubscribe, go to >>> https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts >>> > and follow the instructions there. >>> > >>> >>> >>> >>> >>> _______________________________________________ >>> volt-nuts mailing list -- volt-nuts@febo.com >>> To unsubscribe, go to >>> https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts >>> and follow the instructions there. >>> >> >> >> >> _______________________________________________ >> volt-nuts mailing list -- volt-nuts@febo.com >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts >> and follow the instructions there. >> >> _______________________________________________ >> volt-nuts mailing list -- volt-nuts@febo.com >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts >> and follow the instructions there. >> >> > > > > _______________________________________________ > volt-nuts mailing list -- volt-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts > and follow the instructions there.

R

Raj

Thu, Nov 18, 2010 3:30 AM

I understand from a pal at Honeywell that we may find such documents at "LOGSA". Can someone who can access check if it is available?

Does anyone have schematics for the Keithley 2001 multimeter? I received one today with a blown up transformer. I'd like to have a look at the automatic AC input voltage selection circuit before replacing the transformer.

Thanks.

Randy.

--
Raj, VU2ZAP
Bangalore, India.

I understand from a pal at Honeywell that we may find such documents at "LOGSA". Can someone who can access check if it is available? >Does anyone have schematics for the Keithley 2001 multimeter? I received one today with a blown up transformer. I'd like to have a look at the automatic AC input voltage selection circuit before replacing the transformer. > >Thanks. > >Randy. -- Raj, VU2ZAP Bangalore, India.

BK

Brian Kirby

Thu, Nov 18, 2010 5:30 AM

LOGSA is the US Army's Logistic Support Activity at Redstone Arsenal,
Huntsville AL. They have digitized test equipment manuals that the Army
uses.

Searching on Keithley revealed;

*PIN* 	*TM/EM Number* 	*Current Change* 	*DIS Code* 	*Publication Title

Brian - KD4FM

On 11/17/2010 9:30 PM, Raj wrote:

I understand from a pal at Honeywell that we may find such documents at "LOGSA". Can someone who can access check if it is available?

Does anyone have schematics for the Keithley 2001 multimeter? I received one today with a blown up transformer. I'd like to have a look at the automatic AC input voltage selection circuit before replacing the transformer.

Thanks.

Randy.

LOGSA is the US Army's Logistic Support Activity at Redstone Arsenal, Huntsville AL. They have digitized test equipment manuals that the Army uses. Searching on Keithley revealed; *PIN* *TM/EM Number* *Current Change* *DIS Code* *Publication Title (partial)* PDF <https://www.logsa.army.mil/etms/data/086523.cfm?pin=086523> 086523 <https://www.logsa.army.mil/etms/data/086523.cfm?pin=086523> TB 9-6625-2420-24 <https://www.logsa.army.mil/etms/data/086523.cfm?pin=086523> A <https://www.logsa.army.mil/etms/data/086523.cfm?pin=086523> CALIBRATION PROCEDURE FOR KEITHLEY MULTIMETER, MODEL 179 <https://www.logsa.army.mil/etms/data/086523.cfm?pin=086523> PDF <https://www.logsa.army.mil/etms/data/086529.cfm?pin=086529> 086529 <https://www.logsa.army.mil/etms/data/086529.cfm?pin=086529> TB 9-6625-2421-24 <https://www.logsa.army.mil/etms/data/086529.cfm?pin=086529> A <https://www.logsa.army.mil/etms/data/086529.cfm?pin=086529> CALIBRATION PROCEDURE FOR MICROVOLT DIGITAL MULTIMETER KEITHLEY MODEL 177 <https://www.logsa.army.mil/etms/data/086529.cfm?pin=086529> Brian - KD4FM On 11/17/2010 9:30 PM, Raj wrote: > I understand from a pal at Honeywell that we may find such documents at "LOGSA". Can someone who can access check if it is available? > >> Does anyone have schematics for the Keithley 2001 multimeter? I received one today with a blown up transformer. I'd like to have a look at the automatic AC input voltage selection circuit before replacing the transformer. >> >> Thanks. >> >> Randy.

R

Raj

Thu, Nov 18, 2010 6:10 AM

Thanks Brian, looks like 2001 is not there.

I can't access except through a proxy server!

Raj - vu2zap

LOGSA is the US Army's Logistic Support Activity at Redstone Arsenal, Huntsville AL. They have digitized test equipment manuals that the Army uses.

Searching on Keithley revealed;

    *PIN*   *TM/EM Number*  *Current Change*        *DIS Code*      *Publication Title (partial)*

Brian - KD4FM

On 11/17/2010 9:30 PM, Raj wrote:

I understand from a pal at Honeywell that we may find such documents at "LOGSA". Can someone who can access check if it is available?

Does anyone have schematics for the Keithley 2001 multimeter? I received one today with a blown up transformer. I'd like to have a look at the automatic AC input voltage selection circuit before replacing the transformer.

Thanks.

Randy.

Thanks Brian, looks like 2001 is not there. I can't access except through a proxy server! Raj - vu2zap > LOGSA is the US Army's Logistic Support Activity at Redstone Arsenal, Huntsville AL. They have digitized test equipment manuals that the Army uses. > >Searching on Keithley revealed; > > *PIN* *TM/EM Number* *Current Change* *DIS Code* *Publication Title (partial)* >PDF <https://www.logsa.army.mil/etms/data/086523.cfm?pin=086523> 086523 <https://www.logsa.army.mil/etms/data/086523.cfm?pin=086523> TB 9-6625-2420-24 <https://www.logsa.army.mil/etms/data/086523.cfm?pin=086523> A <https://www.logsa.army.mil/etms/data/086523.cfm?pin=086523> CALIBRATION PROCEDURE FOR KEITHLEY MULTIMETER, MODEL 179 <https://www.logsa.army.mil/etms/data/086523.cfm?pin=086523> >PDF <https://www.logsa.army.mil/etms/data/086529.cfm?pin=086529> 086529 <https://www.logsa.army.mil/etms/data/086529.cfm?pin=086529> TB 9-6625-2421-24 <https://www.logsa.army.mil/etms/data/086529.cfm?pin=086529> A <https://www.logsa.army.mil/etms/data/086529.cfm?pin=086529> CALIBRATION PROCEDURE FOR MICROVOLT DIGITAL MULTIMETER KEITHLEY MODEL 177 <https://www.logsa.army.mil/etms/data/086529.cfm?pin=086529> > > >Brian - KD4FM > > >On 11/17/2010 9:30 PM, Raj wrote: >>I understand from a pal at Honeywell that we may find such documents at "LOGSA". Can someone who can access check if it is available? >> >>>Does anyone have schematics for the Keithley 2001 multimeter? I received one today with a blown up transformer. I'd like to have a look at the automatic AC input voltage selection circuit before replacing the transformer. >>> >>>Thanks. >>> >>>Randy.

volt-nuts@lists.febo.com

Keithley 2001