M: Difference between revisions

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Kurt

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 operate in CHOP or ALT mode.
-Each input goes through a step attenuator, is clamped by a neon bulb,
+Each input goes through a step attenuator,
-and then is fed to the grid of a cathode follower made with a [[7586]] Nuvistor tube.
+is clamped by a neon bulb,
+and then is fed to the grid of a cathode follower
+made with a [[7586]] Nuvistor tube.
 Next, the signal goes to a PNP differential amplifier.
-Diodes in series with the collector signal of this differential amplifier are used for input channel switching.
+Diodes in series with the collector signal
-An internal differential signal bus connects the switched outputs of each of the input channels
+of this differential amplifier are used for input channel switching.
-and feeds the signal to the output amplifier, which drives the signal output, pins 1 and 3 of the plug-in connector.
+An internal differential signal bus connects
-The output amplifier is two [[12AU6]] pentodes connected as a differential amplifier,
+the switched outputs of each of the input channels
-followed by a [[12AT7]] dual triode acting as a cathode follower to drive the output with a relatively low impedance.
+and feeds the signal to the output amplifier,
+which drives the signal output,
+pins 1 and 3 of the plug-in connector.
+The output amplifier is two [[12AU6]] pentodes
+connected as a differential amplifier,
+followed by a [[12AT7]] dual triode acting
+as a cathode follower to drive the output
+with a relatively low impedance.
-Type M was [[introduced in 1962]], along with Type [[O]], and dropped after 1971 or 1972.
+Type M was [[introduced in 1962]],
+along with the Type [[O]],
+and dropped after 1971 or 1972.
 * [http://bama.edebris.com/manuals/tek/m/ Tektronix Type M Manual (BAMA)]