User:Peter: Difference between revisions
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Tek7104-superluminal-beam.jpg | 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 | 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 | Rise time measurement as before, 1000 Hz repetition rate at same brightness settings. | ||
File:Tek7104-200ps-singleshot.jpg | File: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-risetime-7s12-100ps.jpg | [[P6202]] rise time | ||
P6202-risetime-7s12-1ns.jpg | P6202-risetime-7s12-1ns.jpg | [[P6202]] rise time | ||
P6230-rt1.jpg | 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-rt2.jpg | P6230-rt2.jpg | [[P6230]] Rise time without ground lead: 9.2 * 20 ps = 184 ps (equiv. to 1.9 GHz bandwidth) | ||
P6230-rt3.jpg | P6230-rt3.jpg | [[P6230]] Rise time - Effect of using the "low inductance" ground lead - rise time 400 ps, bandwidth 875 MHz | ||
P6230-rt4.jpg | P6230-rt4.jpg | [[P6230]] Rise time - Using the 250 mm alligator ground lead - severe pulse distortion, rise time ~3 ns (115 MHz)! | ||
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 | ||
7000-readout-diagnostic.jpg | Classic readout board diagnostic display | 7000-readout-diagnostic.jpg | Classic readout board diagnostic display | ||
7a22-7613--tri-15uV.jpg | 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. | ||
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 | ||
Tek-067-0587-02-gain-v.jpg | Tektronix 067-0587-02, gain mode, in vertical slot | Tek-067-0587-02-gain-v.jpg | Tektronix [[067-0587-02]], gain mode, in vertical slot | ||
7d14-screen.jpg | [[7D14]] screen picture - 500 MHz signal ([[7A19]], [[7B92A]], [[7904]]) | 7d14-screen.jpg | [[7D14]] screen picture - 500 MHz signal ([[7A19]], [[7B92A]], [[7904]]) | ||
7b85-risetime-10n.jpg | 7b85-risetime-10n.jpg | [[7B85]] used for rise time measurement | ||
7b85-risetime-5n.jpg | 7b85-risetime-5n.jpg | [[7B85]] used for rise time measurement | ||
7b85-pulse-width.jpg | 7B85 used for pulse width measurement | 7b85-pulse-width.jpg | [[7B85]] used for pulse width measurement | ||
7b85-period-2.jpg | 7b85-period-2.jpg | [[7B85]] used for pulse period measurement | ||
7b85-period-1.jpg | 7b85-period-1.jpg | [[7B85]] used for pulse period measurement | ||
7s11-1ghz-smooth-store.jpg | [[7S11]]/[[7T11]], 1 GHz sine, smooth mode, on variable-persistence storage scope (7613) | 7s11-1ghz-smooth-store.jpg | [[7S11]]/[[7T11]], 1 GHz sine, smooth mode, on variable-persistence storage scope (7613) | ||
7s11-1ghz-smooth.jpg | 7s11-1ghz-smooth.jpg | [[7S11]]/[[7T11]], 1 GHz sine, smooth mode | ||
7s11-1ghz-norm.jpg | 7s11-1ghz-norm.jpg | [[7S11]]/[[7T11]], 1 GHz sine, normal mode | ||
7s11-s4-7t11a-1ghz.jpg | 7s11-s4-7t11a-1ghz.jpg | [[7S11]]/[[S-4]] and [[7T11A]] displaying 1 GHz sine | ||
7s12-7s11-1ghz-store2.jpg | 7s12-7s11-1ghz-store2.jpg | [[7S12]] as a sampler displaying a 1 GHz signal (hi-res mode / storage) | ||
7s12-7s11-1ghz-store.jpg | 7s12-7s11-1ghz-store.jpg | [[7S12]] as a sampler displaying a 1 GHz signal (hi-res mode / storage) | ||
7s12-7s11-1ghz-nonstore.jpg | 7S12 as a sampler displaying a 1 GHz signal (normal mode / non-storage) | 7s12-7s11-1ghz-nonstore.jpg | [[7S12]] as a sampler displaying a 1 GHz signal (normal mode / non-storage) | ||
7s12-s52-incident.jpg | 7s12-s52-incident.jpg | [[7S12]] displaying the incident pulse from an S-52 (nom. < 25 ps) through an S-6 head (nom. < 30 ps) | ||
7s12-self-portrait.jpg | 7s12-self-portrait.jpg | [[7S12]]/[[S-6]]/[[S-52]] "Self Portrait" - pulse reflected on S-6 "through" path (approx. 120 ps one way) | ||
7s12-s52-pulse-1.jpg | 7s12-s52-pulse-1.jpg | Full pulse pattern of a [[7S12]]/[[S-52]] in real time (top trace) and sampled (bottom trace) shown simultaneously on [[7844]]. 7S12 trace at slowest possible sweep. | ||
7s12-s52-pulse-2.jpg | 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. | ||
Tri-1k w.jpg | Tri-1k w.jpg | sub-millivolt triangle signal displayed through [[7A22]], BW=1 kHz | ||
Tri-10k w.jpg | Tri-10k w.jpg | sub-millivolt triangle signal displayed through [[7A22]], BW=10 kHz | ||
Tri-100k w.jpg | Tri-100k w.jpg | sub-millivolt triangle signal displayed through [[7A22]], BW=100 kHz | ||
Tri-1000k w.jpg | Tri-1000k w.jpg | sub-millivolt triangle signal through [[7A22]], BW=1 MHz | ||
P6021-6022-100hz.jpg | [[P6022]] / passive term. @ 10 mA/Div (top) vs. [[P6021]]+[[134]] (bottom), sawtooth @ 100 mA<sub>p-p</sub>, 100 Hz | P6021-6022-100hz.jpg | [[P6022]] / passive term. @ 10 mA/Div (top) vs. [[P6021]]+[[134]] (bottom), sawtooth @ 100 mA<sub>p-p</sub>, 100 Hz | ||
P6021-6022-1000hz.jpg | P6022 / passive term. @ 10 mA/Div (top) vs. P6021+134 (bottom), sawtooth @ 100 mA<sub>p-p</sub>, 1 kHz | P6021-6022-1000hz.jpg | [[P6022]] / passive term. @ 10 mA/Div (top) vs. [[P6021]]+[[134]] (bottom), sawtooth @ 100 mA<sub>p-p</sub>, 1 kHz | ||
P6021-6022-10000hz.jpg | P6022 / passive term. @ 10 mA/Div (top) vs. P6021+134 (bottom), sawtooth @ 100 mA<sub>p-p</sub>, 10 kHz | P6021-6022-10000hz.jpg | [[P6022]] / passive term. @ 10 mA/Div (top) vs. [[P6021]]+[[134]] (bottom), sawtooth @ 100 mA<sub>p-p</sub>, 10 kHz | ||
P6021-bat41-1.jpg | Measuring diode reverse recovery | P6021-bat41-1.jpg | Measuring diode reverse recovery | ||
P6021-bat41-2.jpg | BAT41 diode reverse recovery, 20 mA/Div | P6021-bat41-2.jpg | BAT41 diode reverse recovery, 20 mA/Div | ||
TD quick check example.jpg | 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. | ||
</gallery> | </gallery> |
Revision as of 00:05, 7 March 2017
Scopes
Plugins
Probes and other gear
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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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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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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P6202 rise time
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P6202 rise time
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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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A 7B92A (B098xxx) triggering a 974 MHz sine applied via 067-0587-02 calibration fixture
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Classic readout board diagnostic display
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15 μVp-ptriangle wave measured through 7A22. Using variable-persistence storage mode on a 7613 for noise filtering.
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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.