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The Type N was introduced in 1960, followed by the [[661]] a year later, and discontinued in 1964, | The Type N was introduced in 1960, followed by the [[661]] a year later, and discontinued in 1964, | ||
making it the shortest-lived plug-in. | making it the shortest-lived plug-in. | ||
The sampling circuit of the Type N is primitive. It uses a single diode, | |||
the "interrogate diode", D5480. The strobe pulse is added to the input | |||
signal using a passive summing circuit. Consequently, the amplitude of | |||
the kick-out pulse from the input is high, about 150mV. | |||
For calibration of the timebase of the Type N, the [[013-028|013-028 Timing Standard]] was produced. | For calibration of the timebase of the Type N, the [[013-028|013-028 Timing Standard]] was produced. |
Revision as of 20:05, 17 April 2011
The Tektronix Type N is a sampling plug-in introduced in 1960 for 500-series scopes. It was the first sampler produced by Tektronix. The risetime is specified to be under 600 picoseconds. The Type N is a complete sampling subsystem, using the 500-series oscilloscope just as a power supply and a display. The oscilloscope is operated in X-Y mode and gets its horizontal signal from the Type N plug-in instead of from the scope's sweep circuitry. The input connector is a 50-ohm GR-874. The Type N was introduced in 1960, followed by the 661 a year later, and discontinued in 1964, making it the shortest-lived plug-in.
The sampling circuit of the Type N is primitive. It uses a single diode, the "interrogate diode", D5480. The strobe pulse is added to the input signal using a passive summing circuit. Consequently, the amplitude of the kick-out pulse from the input is high, about 150mV.
For calibration of the timebase of the Type N, the 013-028 Timing Standard was produced.
- Tektronix Type N Manual without schematics (BAMA)
- Tektronix Type N Schematics (PDF)
- Tektronix Type N Factory Calibration Procedure (PDF)
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Vertical signal path schematic