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Type 1A7 is a high-sensitivity differential plug-in for [[500-series scopes]]. | {{Plugin Sidebar 2 | | ||
It senses down to | title=Tektronix 1A7 | | ||
apply up to | summary=Differential amplifier | | ||
image=Tek 1a7a 2.JPG | | |||
caption=Tektronix 1A7A | | |||
introduced=1966 | | |||
discontinued=(?) | | |||
series=[[500-series scopes]] | | |||
manuals= | |||
* [http://w140.com/mmm/tek-1a7.pdf Tektronix 1A7 Manual (PDF)] | |||
* [http://w140.com/tek_1a7a.pdf Tektronix 1A7A Manual (PDF)] | |||
}} | |||
The '''Tektronix Type 1A7''' is a high-sensitivity differential plug-in for [[500-series scopes]]. | |||
It senses down to 10 μV/Div, either AC or DC-coupled. It's possible to | |||
apply up to ± 300 mV offset to the reading while maintaining sensitivity. | |||
Upper and lower cutoff frequency is selectable on the front panel. | Upper and lower cutoff frequency is selectable on the front panel. | ||
Maximum bandwidth is | Maximum bandwidth is 500 kHz, and common-mode rejection is 50,000 to 1. | ||
Type 1A7's front end is a matched quad of [[7586]] [[nuvistor|nuvistors]], | Type 1A7's front end is a matched quad of [[7586]] [[nuvistor|nuvistors]], | ||
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Type 1A7 was [[introduced in 1966]]. In 1968 it was superseded by | Type 1A7 was [[introduced in 1966]]. In 1968 it was superseded by | ||
the FET-equipped Type 1A7A, which also doubled the bandwidth | the FET-equipped '''Type 1A7A''', which also doubled the bandwidth | ||
and the common-mode rejection. Type 1A7A remained available | and the common-mode rejection. Type 1A7A remained available | ||
until the end of the [[500-series scopes|500-series]] line after 1974. | until the end of the [[500-series scopes|500-series]] line after 1974. | ||
==Specifications== | |||
[[Category:Specifications needed]] ''please add'' | |||
==Pictures== | |||
<gallery> | <gallery> | ||
File:Tek 1a7a 1.JPG|1A7A | File:Tek 1a7a 1.JPG|1A7A | ||
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File:Tek 1a7a 6.JPG|1A7A | File:Tek 1a7a 6.JPG|1A7A | ||
</gallery> | </gallery> | ||
[[Category:Introduced in 1966]] | |||
[[Category:500 series plugins]] | |||
Revision as of 01:52, 19 August 2014
Template:Plugin Sidebar 2 The Tektronix Type 1A7 is a high-sensitivity differential plug-in for 500-series scopes. It senses down to 10 μV/Div, either AC or DC-coupled. It's possible to apply up to ± 300 mV offset to the reading while maintaining sensitivity. Upper and lower cutoff frequency is selectable on the front panel. Maximum bandwidth is 500 kHz, and common-mode rejection is 50,000 to 1.
Type 1A7's front end is a matched quad of 7586 nuvistors, with two in parallel - to reduce noise - on each input. These tubes are in temperature-equalizing housings, and mounted on a rubber-isolated subchassis. The "coarse" balance adjustment controls the relative heater voltages on the 7586's.
Type 1A7 was introduced in 1966. In 1968 it was superseded by the FET-equipped Type 1A7A, which also doubled the bandwidth and the common-mode rejection. Type 1A7A remained available until the end of the 500-series line after 1974.
Specifications
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Pictures
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