3B3: Difference between revisions

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a [[7895]] Nuvistor triode cathode-follower driving a differential amplifier formed by two
a [[7895]] Nuvistor triode cathode-follower driving a differential amplifier formed by two
[[2N2207]] germanium PNP transistors.  The collector current switches the tunnel diode when
[[2N2207]] germanium PNP transistors.  The collector current switches the tunnel diode when
a triggering event occurs.  The 3B3 uses Transitron T12G germanium diodes, which are equivalent to
a triggering event occurs.   
the [[1N270]].
Up to serial number 1029,
the 3B3 uses Transitron T12G germanium diodes (equivalent to the [[1N270]])
to protect the transistors of the front-end differential amplifier.
Starting at serial number 1030, silicon diodes were used for that function.


* [http://bama.edebris.com/download/tek/3b3/3b3.djvu Tektronix 3B3 Manual (DjVu)]
* [http://bama.edebris.com/download/tek/3b3/3b3.djvu Tektronix 3B3 Manual (DjVu)]

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