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sci / sci.electronics.design / Re: Favourite Test Equipment

SubjectAuthor
* Re: Favourite Test EquipmentGerhard Hoffmann
`* Re: Favourite Test Equipmentjohn larkin
 `- Re: Favourite Test EquipmentJohn Larkin

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Subject: Re: Favourite Test Equipment
From: Gerhard Hoffmann
Newsgroups: sci.electronics.design, sci.electronics.repair
Date: Fri, 5 Apr 2024 21:31 UTC
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From: dk4xp@arcor.de (Gerhard Hoffmann)
Newsgroups: sci.electronics.design,sci.electronics.repair
Subject: Re: Favourite Test Equipment
Date: Fri, 5 Apr 2024 23:31:28 +0200
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Am 02.04.24 um 17:09 schrieb John Larkin:

>
> We still have one Tek 7104 (1 GHz microchannel analog scope) that
> works. One of my guys likes it.
>

Wasn't that the scope that always switched off the beam current
when things got interesting?

Gerhard

Subject: Re: Favourite Test Equipment
From: john larkin
Newsgroups: sci.electronics.design, sci.electronics.repair
Date: Fri, 5 Apr 2024 21:42 UTC
References: 1 2 3 4 5 6
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From: jl@650pot.com (john larkin)
Newsgroups: sci.electronics.design,sci.electronics.repair
Subject: Re: Favourite Test Equipment
Date: Fri, 05 Apr 2024 14:42:55 -0700
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On Fri, 5 Apr 2024 23:31:28 +0200, Gerhard Hoffmann <dk4xp@arcor.de>
wrote:

>Am 02.04.24 um 17:09 schrieb John Larkin:
>
>>
>> We still have one Tek 7104 (1 GHz microchannel analog scope) that
>> works. One of my guys likes it.
>>
>
>Wasn't that the scope that always switched off the beam current
>when things got interesting?
>
>Gerhard

Yes, it shuts off the display often, to not wear out the microchannel
plate.

One develops a sophisticated thumb-flic motion to hit the enable
button in milliseconds. You can see a single-shot sweep at 1 ns/cm.

The 719 was a fast CRT scope too, but the screen was about the size of
a postage stamp, and there was no vertical amplifier. I don't want one
of those huge ugly beasts, but I do have a CRT. I dug it out of a 719
in a parking lot in Los Alamos, in the cold rain.

Subject: Re: Favourite Test Equipment
From: John Larkin
Newsgroups: sci.electronics.design, sci.electronics.repair
Organization: Highland Tech
Date: Sat, 6 Apr 2024 02:34 UTC
References: 1 2 3 4 5 6 7
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From: jl@997PotHill.com (John Larkin)
Newsgroups: sci.electronics.design,sci.electronics.repair
Subject: Re: Favourite Test Equipment
Date: Fri, 05 Apr 2024 19:34:05 -0700
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On Fri, 05 Apr 2024 14:42:55 -0700, john larkin <jl@650pot.com> wrote:

>On Fri, 5 Apr 2024 23:31:28 +0200, Gerhard Hoffmann <dk4xp@arcor.de>
>wrote:
>
>>Am 02.04.24 um 17:09 schrieb John Larkin:
>>
>>>
>>> We still have one Tek 7104 (1 GHz microchannel analog scope) that
>>> works. One of my guys likes it.
>>>
>>
>>Wasn't that the scope that always switched off the beam current
>>when things got interesting?
>>
>>Gerhard
>
>Yes, it shuts off the display often, to not wear out the microchannel
>plate.
>
>One develops a sophisticated thumb-flic motion to hit the enable
>button in milliseconds. You can see a single-shot sweep at 1 ns/cm.
>
>The 719 was a fast CRT scope too, but the screen was about the size of
>a postage stamp, and there was no vertical amplifier. I don't want one
>of those huge ugly beasts, but I do have a CRT. I dug it out of a 719
>in a parking lot in Los Alamos, in the cold rain.

Sorry, that was a 519.

https://www.dropbox.com/s/r6c3zkwlqrayt53/519_CRT.JPG?raw=1

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