User:Peter: Difference between revisions

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File:P6202-risetime-7s12-100ps.jpg  | P6202 rise time  
File:P6202-risetime-7s12-100ps.jpg  | P6202 rise time  
File:P6202-risetime-7s12-1ns.jpg  | P6202 rise time  
File:P6202-risetime-7s12-1ns.jpg  | P6202 rise time  
File: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)
File:P6230-rt2.jpg | P6230 Rise time without ground lead: 9.2 * 20 ps = 184 ps (equiv. to 1.9 GHz bandwidth)
File:P6230-rt3.jpg | P6230 Rise time - Effect of using the "low inductance" ground lead - rise time 400 ps, bandwidth 875 MHz
File:P6230-rt4.jpg | P6230 Rise time - Using the 250 mm alligator ground lead - severe pulse distortion, rise time ~3 ns (115 MHz)!


File:Tek7904-7a19-7b92a-1010mhz-hfsync.jpg ‎| A 7B92A (B098xxx) displaying a 1.01 GHz sine in HF Sync mode (7904 mainframe, 7A19 amplifier)
File:Tek7904-7a19-7b92a-1010mhz-hfsync.jpg ‎| A 7B92A (B098xxx) displaying a 1.01 GHz sine in HF Sync mode (7904 mainframe, 7A19 amplifier)
Line 79: Line 84:
File:7b85-risetime-5n.jpg ‎ |  7B85 used for rise time measurement
File:7b85-risetime-5n.jpg ‎ |  7B85 used for rise time measurement
File:7b85-pulse-width.jpg ‎ |  7B85 used for pulse width measurement
File:7b85-pulse-width.jpg ‎ |  7B85 used for pulse width measurement
File:7b85-period-2.jpg ‎    |  7B85 used for pulse period measurement
File:7b85-period-2.jpg ‎    |  7B85 used for pulse period measurement
File:7b85-period-1.jpg ‎    |  7B85 used for pulse period measurement
File:7b85-period-1.jpg ‎    |  7B85 used for pulse period measurement
Line 93: Line 99:
File:7s12-s52-incident.jpg ‎  | 7S12 displaying the incident pulse from an S-52 (nom. < 25 ps) through an S-6 head (nom. < 30 ps)
File:7s12-s52-incident.jpg ‎  | 7S12 displaying the incident pulse from an S-52 (nom. < 25 ps) through an S-6 head (nom. < 30 ps)
File:7s12-self-portrait.jpg ‎ | 7S12/S-6/S-52 "Self Portrait" - pulse reflected on S-6 "through" path (approx. 120 ps one way)
File:7s12-self-portrait.jpg ‎ | 7S12/S-6/S-52 "Self Portrait" - pulse reflected on S-6 "through" path (approx. 120 ps one way)
File: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.
File:7s12-s52-pulse-2.jpg | S-52 pulse in real time (top trace) and sampled (bottom trace) shown simultaneously on [[7844]].  Approximately equal time scales.


File:Tri-1k w.jpg ‎  | sub-millivolt triangle signal displayed through 7A22, BW=1 kHz
File:Tri-1k w.jpg ‎  | sub-millivolt triangle signal displayed through 7A22, BW=1 kHz

Revision as of 08:11, 17 January 2016

Scopes

Plugins


Screen shots

  • 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 ...

    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 ...

  • 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)

    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)

  • Rise time measurement as before, 1000 Hz repetition rate at same brightness settings.

    Rise time measurement as before, 1000 Hz repetition rate at same brightness settings.

  • 7104 recording a single shot pulse (from 067-0587-02) at 200ps/Div. Camera: Nikon D7100, 50 mm f/1.4, ISO 3200, 1/2 s. CRT filter not removed.

    7104 recording a single shot pulse (from 067-0587-02) at 200ps/Div. Camera: Nikon D7100, 50 mm f/1.4, ISO 3200, 1/2 s. CRT filter not removed.

  • 7104 recording 1 GHz sine, single shot at 200ps/Div. Camera: Nikon D7100, 50 mm f/1.4, ISO 3200, 1/2 s. CRT filter not removed. CRT amplification loss is evident around the center line.

    7104 recording 1 GHz sine, single shot at 200ps/Div. Camera: Nikon D7100, 50 mm f/1.4, ISO 3200, 1/2 s. CRT filter not removed. CRT amplification loss is evident around the center line.

  • BC337 on 7CT1N

    BC337 on 7CT1N

  • P6202 rise time

    P6202 rise time

  • P6202 rise time

    P6202 rise time

  • 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 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 Rise time without ground lead: 9.2 * 20 ps = 184 ps (equiv. to 1.9 GHz bandwidth)

    P6230 Rise time without ground lead: 9.2 * 20 ps = 184 ps (equiv. to 1.9 GHz bandwidth)

  • P6230 Rise time - Effect of using the "low inductance" ground lead - rise time 400 ps, bandwidth 875 MHz

    P6230 Rise time - Effect of using the "low inductance" ground lead - rise time 400 ps, bandwidth 875 MHz

  • P6230 Rise time - Using the 250 mm alligator ground lead - severe pulse distortion, rise time ~3 ns (115 MHz)!

    P6230 Rise time - Using the 250 mm alligator ground lead - severe pulse distortion, rise time ~3 ns (115 MHz)!

  • A 7B92A (B098xxx) displaying a 1.01 GHz sine in HF Sync mode (7904 mainframe, 7A19 amplifier)

    A 7B92A (B098xxx) displaying a 1.01 GHz sine in HF Sync mode (7904 mainframe, 7A19 amplifier)

  • A 7B92A (B098xxx) triggering a 974 MHz sine applied via 067-0587-02 calibration fixture

    A 7B92A (B098xxx) triggering a 974 MHz sine applied via 067-0587-02 calibration fixture

  • Signal beam interruption by readout seen on beam 2 of a 7844

    Signal beam interruption by readout seen on beam 2 of a 7844

  • Classic readout board diagnostic display

    Classic readout board diagnostic display

  • 15 μV p-p triangle wave measured through 7A22. Using variable-persistence storage mode on a 7613 for noise filtering.

    15 μV p-p triangle wave measured through 7A22. Using variable-persistence storage mode on a 7613 for noise filtering.

  • Tektronix 067-0587-02, gain mode, in horizontal slot

    Tektronix 067-0587-02, gain mode, in horizontal slot

  • Tektronix 067-0587-02, gain mode, in vertical slot

    Tektronix 067-0587-02, gain mode, in vertical slot

  • 7D14 screen picture - 500 MHz signal (7A19, 7B92A, 7904)

    7D14 screen picture - 500 MHz signal (7A19, 7B92A, 7904)

  • 7B85 used for rise time measurement

    7B85 used for rise time measurement

  • 7B85 used for rise time measurement

    7B85 used for rise time measurement

  • 7B85 used for pulse width measurement

    7B85 used for pulse width measurement

  • 7B85 used for pulse period measurement

    7B85 used for pulse period measurement

  • 7B85 used for pulse period measurement

    7B85 used for pulse period measurement

  • 7S11/7T11, 1 GHz sine, smooth mode, on variable-persistence storage scope (7613)

    7S11/7T11, 1 GHz sine, smooth mode, on variable-persistence storage scope (7613)

  • 7S11/7T11, 1 GHz sine, smooth mode

    7S11/7T11, 1 GHz sine, smooth mode

  • 7S11/7T11, 1 GHz sine, normal mode

    7S11/7T11, 1 GHz sine, normal mode

  • 7S11/S-4 and 7T11A displaying 1 GHz sine

    7S11/S-4 and 7T11A displaying 1 GHz sine

  • 7S12 as a sampler displaying a 1 GHz signal (hi-res mode / storage)

    7S12 as a sampler displaying a 1 GHz signal (hi-res mode / storage)

  • 7S12 as a sampler displaying a 1 GHz signal (hi-res mode / storage)

    7S12 as a sampler displaying a 1 GHz signal (hi-res mode / storage)

  • 7S12 as a sampler displaying a 1 GHz signal (normal mode / non-storage)

    7S12 as a sampler displaying a 1 GHz signal (normal mode / non-storage)

  • 7S12 displaying the incident pulse from an S-52 (nom. < 25 ps) through an S-6 head (nom. < 30 ps)

    7S12 displaying the incident pulse from an S-52 (nom. < 25 ps) through an S-6 head (nom. < 30 ps)

  • 7S12/S-6/S-52 "Self Portrait" - pulse reflected on S-6 "through" path (approx. 120 ps one way)

    7S12/S-6/S-52 "Self Portrait" - pulse reflected on S-6 "through" path (approx. 120 ps one way)

  • 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.

    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.

  • S-52 pulse in real time (top trace) and sampled (bottom trace) shown simultaneously on 7844. Approximately equal time scales.

    S-52 pulse in real time (top trace) and sampled (bottom trace) shown simultaneously on 7844. Approximately equal time scales.

  • sub-millivolt triangle signal displayed through 7A22, BW=1 kHz

    sub-millivolt triangle signal displayed through 7A22, BW=1 kHz

  • sub-millivolt triangle signal displayed through 7A22, BW=10 kHz

    sub-millivolt triangle signal displayed through 7A22, BW=10 kHz

  • sub-millivolt triangle signal displayed through 7A22, BW=100 kHz

    sub-millivolt triangle signal displayed through 7A22, BW=100 kHz

  • sub-millivolt triangle signal through 7A22, BW=1 MHz

    sub-millivolt triangle signal through 7A22, BW=1 MHz

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