User:Peter: Difference between revisions
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Tek7104-superluminal-beam.jpg | [https://web.archive.org/web/20110926020847/http://www.oregonlive.com/silicon-forest/index.ssf/2011/09/a_tektronix_oscilloscope_that.html Faster-than-light] beam on [[7104]]? Using a [[067-0587-02]] calibration fixture at maximum amplitude produces this trace spanning 1.2 Div horizontally at 200 ps/Div and 8 Div vertically. Trace length is (1.2² + 8²)<sup>½</sup> × 8.5 mm = 68.8 mm, travelled in 1.2 × 200 ps = 240 ps. Apparent speed is therefore 68.8×10<sup>-3</sup> / 240×10<sup>-12</sup> m/s or 2.86×10<sup>8</sup> m/s. '''Very''' near miss ... | Tek7104-superluminal-beam.jpg | [https://web.archive.org/web/20110926020847/http://www.oregonlive.com/silicon-forest/index.ssf/2011/09/a_tektronix_oscilloscope_that.html Faster-than-light] beam on [[7104]]? Using a [[067-0587-02]] calibration fixture at maximum amplitude produces this trace spanning 1.2 Div horizontally at 200 ps/Div and 8 Div vertically. Trace length is (1.2² + 8²)<sup>½</sup> × 8.5 mm = 68.8 mm, travelled in 1.2 × 200 ps = 240 ps. Apparent speed is therefore 68.8×10<sup>-3</sup> / 240×10<sup>-12</sup> m/s or 2.86×10<sup>8</sup> m/s. '''Very''' near miss ... | ||
Tek7104-ristetime-100hz.jpg | | Tek7104-ristetime-100hz.jpg | [[7104]] rise time measurement. 150 ps risetime pulse from [[067-0587-02]] at 100 Hz repetition rate. Measured 240 ps (corrected for 150 ps fixture rise time: 190 ns = 1.8 GHz) | ||
Tek7104-ristetime-1000hz.jpg | | Tek7104-ristetime-1000hz.jpg | [[7104]] rise time measurement as before, 1000 Hz repetition rate at same brightness settings. | ||
Tek7104-200ps-singleshot.jpg | [[7104]] recording a single shot pulse (from [[067-0587-02]]) at 200 ps/Div. Camera: Nikon D7000, 50 mm f/1.4, ISO 3200, 1/2 s. CRT filter not removed. | Tek7104-200ps-singleshot.jpg | [[7104]] recording a single shot pulse (from [[067-0587-02]]) at 200 ps/Div. Camera: Nikon D7000, 50 mm f/1.4, ISO 3200, 1/2 s. CRT filter not removed. | ||
Tek7104-200ps-singleshot-sin1-1g.jpg | [[7104]] recording 1 GHz sine, single shot at 500 ps/Div. Camera: Nikon D7000, 50 mm f/1.4, ISO 3200, 1/2 s. CRT filter not removed. CRT amplification loss is evident around the center line. | Tek7104-200ps-singleshot-sin1-1g.jpg | [[7104]] recording 1 GHz sine, single shot at 500 ps/Div. Camera: Nikon D7000, 50 mm f/1.4, ISO 3200, 1/2 s. CRT filter not removed. CRT amplification loss is evident around the center line. | ||
7ct1n-bc337.jpg | BC337 on [[7CT1N]] | 7ct1n-bc337.jpg | BC337 on [[7CT1N]] | ||
P6202-risetime-7s12-100ps.jpg | [[P6202]] rise time | P6202-risetime-7s12-100ps.jpg | [[P6202]] rise time measured with [[7S12]], [[S-4]], [[S-52]] | ||
P6202-risetime-7s12-1ns.jpg | [[P6202]] rise time | P6202-risetime-7s12-1ns.jpg | [[P6202]] rise time measured with [[7S12]], [[S-4]], [[S-52]] | ||
P6230-rt1.jpg | [[P6230]] Rise time measured on a [[7S12]] with [[S-52]] and [[S-4]] heads, P6230 ground sleeve connected directly at S-52 output (no ground lead) | P6230-rt1.jpg | [[P6230]] Rise time measured on a [[7S12]] with [[S-52]] and [[S-4]] heads, P6230 ground sleeve connected directly at S-52 output (no ground lead) | ||
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Tek7904-7a19-7b92a-1010mhz-hfsync.jpg | A [[7B92A]] (B098xxx) displaying a 1.01 GHz sine in HF Sync mode ([[7904]] mainframe, [[7A19]] amplifier) | Tek7904-7a19-7b92a-1010mhz-hfsync.jpg | A [[7B92A]] (B098xxx) displaying a 1.01 GHz sine in HF Sync mode ([[7904]] mainframe, [[7A19]] amplifier) | ||
7b92a-triggering-974mhz.jpg | A [[7B92A]] (B098xxx) triggering a 974 MHz sine applied via 067-0587-02 calibration fixture | 7b92a-triggering-974mhz.jpg | A [[7B92A]] (B098xxx) triggering a 974 MHz sine applied via 067-0587-02 calibration fixture ([[7904]] mainframe) | ||
7000-readout-diagnostic.jpg | Classic readout board diagnostic display | 7000-readout-diagnostic.jpg | Classic readout board diagnostic display | ||
Tek-067-0587-02-gain-h.jpg | Tektronix [[067-0587-02]], gain mode, in horizontal slot | Tek-067-0587-02-gain-h.jpg | Tektronix [[067-0587-02]], gain mode, in horizontal slot | ||
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7s12-s52-pulse-2.jpg | [[S-5]]2 pulse in real time (top trace) and sampled (bottom trace) shown simultaneously on [[7844]]. Approximately equal time scales. | 7s12-s52-pulse-2.jpg | [[S-5]]2 pulse in real time (top trace) and sampled (bottom trace) shown simultaneously on [[7844]]. Approximately equal time scales. | ||
7a22-7613--tri-15uV.jpg | 15 μV<sub>p-p</sub> triangle wave measured through [[7A22]]. Using variable-persistence storage mode on a [[7613]] for noise filtering | |||
Tri-1k w.jpg | sub-millivolt triangle signal displayed through [[7A22]], BW=1 kHz | Tri-1k w.jpg | sub-millivolt triangle signal displayed through [[7A22]], BW=1 kHz | ||
Tri-10k w.jpg | sub-millivolt triangle signal displayed through [[7A22]], BW=10 kHz | Tri-10k w.jpg | sub-millivolt triangle signal displayed through [[7A22]], BW=10 kHz | ||
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TD quick check example.jpg | Tunnel diode quick check example using the method from [[Media:Service Scope 49 Apr 1968.pdf | Service Scope 49]]. Right beam is zoomed with delayed timebase to show step speed. | TD quick check example.jpg | Tunnel diode quick check example using the method from [[Media:Service Scope 49 Apr 1968.pdf | Service Scope 49]]. Right beam is zoomed with delayed timebase to show step speed. | ||
7a29-rise.jpg | 7A29 rise time | 7a29-rise.jpg | [[7A29]] rise time ([[7104]], [[7B10]], pulse from [[S-52]]) | ||
308-timing.jpg | [[308]] display, timing mode (binary counter example) | 308-timing.jpg | [[308]] display, timing mode (binary counter example) | ||
308-state.jpg | 308 display, state mode (binary counter example) | 308-state.jpg | 308 display, state mode (binary counter example) | ||
</gallery> | </gallery> |
Revision as of 21:56, 18 September 2017
Scopes
Plugins
Probes and other gear
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P6451 probe internal, PCB front
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P6451 probe internal, PCB back
Screen shots
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Faster-than-light beam on 7104? Using a 067-0587-02 calibration fixture at maximum amplitude produces this trace spanning 1.2 Div horizontally at 200 ps/Div and 8 Div vertically. Trace length is (1.2² + 8²)½ × 8.5 mm = 68.8 mm, travelled in 1.2 × 200 ps = 240 ps. Apparent speed is therefore 68.8×10-3 / 240×10-12 m/s or 2.86×108 m/s. Very near miss ...
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7104 rise time measurement. 150 ps risetime pulse from 067-0587-02 at 100 Hz repetition rate. Measured 240 ps (corrected for 150 ps fixture rise time: 190 ns = 1.8 GHz)
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7104 rise time measurement as before, 1000 Hz repetition rate at same brightness settings.
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7104 recording a single shot pulse (from 067-0587-02) at 200 ps/Div. Camera: Nikon D7000, 50 mm f/1.4, ISO 3200, 1/2 s. CRT filter not removed.
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7104 recording 1 GHz sine, single shot at 500 ps/Div. Camera: Nikon D7000, 50 mm f/1.4, ISO 3200, 1/2 s. CRT filter not removed. CRT amplification loss is evident around the center line.
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BC337 on 7CT1N
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P6230 Rise time without ground lead: 9.2 * 20 ps = 184 ps (equiv. to 1.9 GHz bandwidth)
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P6230 Rise time - Effect of using the "low inductance" ground lead - rise time 400 ps, bandwidth 875 MHz
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P6230 Rise time - Using the 250 mm alligator ground lead - severe pulse distortion, rise time ~3 ns (115 MHz)!
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Classic readout board diagnostic display
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Tektronix 067-0587-02, gain mode, in horizontal slot
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Tektronix 067-0587-02, gain mode, in vertical slot
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7B85 used for rise time measurement
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7B85 used for rise time measurement
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7B85 used for pulse width measurement
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7B85 used for pulse period measurement
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7B85 used for pulse period measurement
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7S12 as a sampler displaying a 1 GHz signal (hi-res mode / storage)
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7S12 as a sampler displaying a 1 GHz signal (hi-res mode / storage)
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7S12 as a sampler displaying a 1 GHz signal (normal mode / non-storage)
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7S12 displaying the incident pulse from an S-52 (nom. < 25 ps) through an S-6 head (nom. < 30 ps)
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sub-millivolt triangle signal displayed through 7A22, BW=1 kHz
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sub-millivolt triangle signal displayed through 7A22, BW=10 kHz
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sub-millivolt triangle signal displayed through 7A22, BW=100 kHz
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sub-millivolt triangle signal through 7A22, BW=1 MHz
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Measuring diode reverse recovery
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BAT41 diode reverse recovery, 20 mA/Div
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Tunnel diode quick check example using the method from Service Scope 49. Right beam is zoomed with delayed timebase to show step speed.
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308 display, timing mode (binary counter example)
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308 display, state mode (binary counter example)