Linley Gumm: Difference between revisions

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In any case, the only thing on that page that is familiar is my characteristic printed signature.  
In any case, the only thing on that page that is familiar is my characteristic printed signature.  
I do very vaguely remember reviewing some small aspect of a new generator that involved floating power supplies.  
I do very vaguely remember reviewing some small aspect of a new generator  
I was blown away at the time by the rather caviler use of same.  
that involved floating power supplies.  
I was blown away at the time by the rather cavalier use of same.  
It all made sense but it was wildly different from anything I had seen at the time.  
It all made sense but it was wildly different from anything I had seen at the time.  
The design of that generator was well along when I first saw it.
The design of that generator was well along when I first saw it.


The nomenclature of the "new 105" on these drawings
The nomenclature of the "new 105" on these drawings
makes it almost certain that this is an early set of [[106|Type 106]] drawings.  
makes it almost certain that this is an early set of [[106|Type 106]] drawings.  
The [[105|Type 105]] was a physically large, high voltage (i.e. approximately 100 volts p-p) square wave generator.  
The [[105|Type 105]] was a physically large, high voltage  
(i.e. approximately 100 volts p-p) square wave generator.  
It was entirely done out of vacuum tubes so it also made extensive use of floating power supplies.  
It was entirely done out of vacuum tubes so it also made extensive use of floating power supplies.  
The 106 was a box to replace the 105,  
The 106 was a box to replace the 105,  
reducing its size plus adding the capability of generating a lower voltage waveforms with a much faster risetime.
reducing its size plus adding the capability of generating  
lower voltage waveforms with a much faster risetime.


At that time at TEK, the Instrument Evaluation organization was responsible for the design  
At that time at Tek, the Instrument Evaluation organization was responsible for the design  
and limited production of equipment used in manufacturing test.  
and limited production of equipment used in manufacturing test.  
Over time some of these products were deemed to be of sufficient quality and interest  
Over time some of these products were deemed to be of sufficient quality and interest  
to be sold to the public as products if for no other reason they were specified in oscilloscope manuals as necessary for calibration.  
to be sold to the public as products,
They would start out as 067- test fixtures and then later be given a product ID (I don't know if the 106 went this route).  
if for no other reason than that they were specified  
in oscilloscope manuals as necessary for calibration.  
They would start out as 067- test fixtures and then later be given a product ID  
(I don't know if the 106 went this route).  
This involved things like time mark generators, sine wave sources, load test boxes, etc.  
This involved things like time mark generators, sine wave sources, load test boxes, etc.  
Therefore, a box to replace the 105 would be done in the Instrument Evaluation group.  
Therefore, a box to replace the 105 would be done in the Instrument Evaluation group.  
I noted [[Bill Lukins]] name on some of the documentation on the [Tekwiki] web site.  
I noted [[Bill Lukins]] name on some of the documentation on the Tekwiki web site.  
I believe he was one of the major players in the 106 development.
I believe he was one of the major players in the 106 development.


(As a completely off the subject aside, the [[140|140 color bar generator]] started out as a 067- test fixture intended to test vector scopes.  
(As a completely off-the-subject aside, the [[140|140 color bar generator]]  
started out as a 067- test fixture intended to test vector scopes.  
I have some early front panels of same in my garage.  
I have some early front panels of same in my garage.  
Charlie, of course, fully intended to sell them as a product from the get go  
Charlie, of course, fully intended to sell them as a product from the get go  
but needed to pretend to be doing a cal fixture to get permission to develop it)
but needed to pretend to be doing a cal fixture to get permission to develop it.)


In any case, I don't believe I drew the diagram on that page.  
In any case, I don't believe I drew the diagram on that page.  

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