[volt-nuts] Keithley 2001 - and Tek gear

[J. Forster]

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 at febo.com [mailto:volt-nuts-bounces at 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 at blueyonder.co.uk> wrote:
>>
>> > From: Alan Scrimgeour <scrimgap at blueyonder.co.uk>
>> > Subject: Re: [volt-nuts] Keithley 2001
>> > To: "Discussion of precise voltage measurement" <volt-nuts at 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 at gmail.com>
>> > To: "Discussion of precise voltage measurement" <volt-nuts at 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 at 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 at 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 at 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 at 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 at febo.com
> To unsubscribe, go to
> https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts
> and follow the instructions there.
>
>