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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 | I do very vaguely remember reviewing some small aspect of a new generator that involved floating power supplies. | ||
that involved floating power supplies. | |||
I was blown away at the time by the rather cavalier use of same. | 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 | ||
reducing its size plus adding the capability of generating | |||
lower voltage waveforms with a much faster risetime. | 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. | |||
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, | ||
to be sold to the public as products, | if for no other reason than that they were specified in oscilloscope manuals as necessary for calibration. | ||
if for no other reason than that they were specified | 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). | ||
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 | I noted [[Bill Lukens]]' 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]] | (As a completely off-the-subject aside, the [[140|140 color bar generator]] started out as a 067- test fixture | ||
started out as a 067- test fixture intended to test vector scopes. | 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.) | ||