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3A3: Difference between revisions
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summary=Dual trace differential amplifier plugin | | summary=Dual trace differential amplifier plugin | | ||
image=3a3 front.jpg | | image=3a3 front.jpg | | ||
caption=Type 3A3 front view | | caption=Type 3A3 SN 4990 up front view | | ||
series=[[560-series scopes]] | | series=[[560-series scopes]] | | ||
introduced=1964 | | introduced=1964 | | ||
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==Pictures== | ==Pictures== | ||
===Older version (SN 4990 below , Nuvistor in input stage)=== | |||
<gallery> | |||
3A3 front SN4990below.jpg| Front SN4990 below | |||
3A3_right_SN4990below.jpg | |||
3A3_left_SN4990below.jpg | |||
3a3 001.JPG| Nuvistor in input stage | |||
</gallery> | |||
===Newer version (SN 4990 up, FET in input stage)=== | |||
<gallery> | <gallery> | ||
3a3 front.jpg|Front | 3a3 front.jpg|Front | ||
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3a3 top.jpg|Top | 3a3 top.jpg|Top | ||
3a3 bottom.jpg|Bottom | 3a3 bottom.jpg|Bottom | ||
3A3 002.JPG| Dual JFET in input stage | 3A3 002.JPG| Dual JFET in input stage | ||
</gallery> | </gallery> | ||
[[Category:560 series plugins]] | [[Category:560 series plugins]] | ||