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(added specs from manual, cleaned up generic text that holds true for all normal 7k mainframes) |
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* [http://bama.edebris.com/download/tek/7934/tek-7934.pdf Tektronix 7934 Intruction Manual (PDF)] | * [http://bama.edebris.com/download/tek/7934/tek-7934.pdf Tektronix 7934 Intruction Manual (PDF)] | ||
}} | }} | ||
The '''Tektronix 7934''' is a 500 MHz [[CRT | The '''Tektronix 7934''' is a 500 MHz [[Transfer storage CRT]] multi-mode mainframe that accepts | ||
two [[7000-series_plug-ins#Vertical plug-ins|7000-series vertical plug-ins]] and two [[7000-series_plug-ins#Horizontal plug-ins|7000-series horizontal plug-ins]]. | two [[7000-series_plug-ins#Vertical plug-ins|7000-series vertical plug-ins]] and two [[7000-series_plug-ins#Horizontal plug-ins|7000-series horizontal plug-ins]]. | ||
It is the fastest analog storage oscilloscope ever built with 500 MHz of bandwidth, surpassing the 400 MHz [[7834]]. | It is the fastest analog storage oscilloscope ever built with 500 MHz of bandwidth, surpassing the 400 MHz [[7834]]. | ||
{{BeginSpecs}} | |||
{{Spec | Bandwidth | 500 MHz with [[7A19]], [[7A29]] }} | |||
{{Spec | Rise time | 0.8 ns with [[7A19]], 0.7 ns with[[7A29]] }} | |||
{{Spec | Fastest cal. sweep | 0.5 ns/Div }} | |||
{{Spec | Storage modes | bistable, variable persistence, fast bistable, fast variable persistence }} | |||
{{Spec | Writing speed | 8800 Div/μs in fast variable persistence mode with reduced scan, 776 Div/μs in fast bistable mode with reduced scan }} | |||
{{Spec | Storage time | >30 s in variable persistence modes, >30 minutes in bistable modes (typically hours) }} | |||
( | {{Spec | CRT | 8×10 Div @ 0.9 cm/Div, [[154-0780-01]] with P31 phosphor}} | ||
{{Spec | Acceleration voltage | 10 kV (12 kV in reduced scan modes) }} | |||
{{Spec | Calibrator | 40 mV/400 mV/4 V into >100 kΩ; 4 mV/40 mV/400 mV into 50 Ω; 1 kHz }} | |||
{{Spec | Power | 90-132 V or 180-250 V, 230 W}} | |||
{{Spec | Weight | 17.2 kg (38 lb) }} | |||
{{EndSpecs}} | |||
==Internals== | |||
The 7934 makes extensive use of custom integrated circuits and hybrid circuits. | The 7934 makes extensive use of custom integrated circuits and hybrid circuits. | ||
With the exception of the on-screen readout circuit, the signal path is completely differential and all of the internal wiring is 50 Ω coax. | With the exception of the on-screen readout circuit, the signal path is completely differential and all of the internal wiring is 50 Ω coax. | ||
Connectors on the rear of the mainframe provide a sample of either the A or B compartment's output as well as either compartment's internal trigger signal. | Connectors on the rear of the mainframe provide a sample of either the A or B compartment's output as well as either compartment's internal trigger signal. | ||
Only one connector is available for each function, and the compartment is selected by jumpers on a circuit board near the rear of the case. | Only one connector is available for each function, and the compartment is selected by jumpers on a circuit board near the rear of the case. | ||
Dennis Tillman wrote: | [[Dennis Tillman]] wrote: | ||
<blockquote> | <blockquote> | ||
The 7934 is an uncommon scope because it came out late in the 7000 lifecycle (1987). | The 7934 is an uncommon scope because it came out late in the 7000 lifecycle (1987). |
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