33,244
edits
M: Difference between revisions
Jump to navigation
Jump to search
no edit summary
No edit summary |
No edit summary |
||
| Line 1: | Line 1: | ||
The Type M is a four-channel | The Type M is a four-channel plug-in for [[500-series scopes]]. | ||
An internal differential signal bus connects the switched outputs of each of the input channels 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. | Early versions had UHF connectors for the inputs. | ||
Later versions have BNC connectors for the inputs. | |||
The risetime is 17 nanoseconds, bandwidth is DC to 20MHz. | |||
Each input goes through a step attenuator, 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. | |||
An internal differential signal bus connects the switched outputs of each of the input channels | |||
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. | |||
* http://bama.edebris.com/manuals/tek/m/ | * http://bama.edebris.com/manuals/tek/m/ | ||