Peter

 

File: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)^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 ...

File: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)

File:Tek7104-ristetime-1000hz.jpg        | Rise time measurement as before, 1000 Hz repetition rate at same brightness settings.

File: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.

File:7ct1n-bc337.jpg | BC337 on 7CT1N

File:P6202-risetime-7s12-100ps.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:7b92a-triggering-974mhz.jpg‎ | A 7B92A (B098xxx) triggering a 974 MHz sine applied via 067-0587-02 calibration fixture

File:7000-readout-diagnostic.jpg | Classic readout board diagnostic display

File:7a22-7613--tri-15uV.jpg ‎    | 15 μV_p-ptriangle wave measured through 7A22. Using variable-persistence storage mode on a 7613 for noise filtering.

File:Tek-067-0587-02-gain-h.jpg ‎ | Tektronix 067-0587-02, gain mode, in horizontal slot

File:Tek-067-0587-02-gain-v.jpg ‎ | Tektronix 067-0587-02, gain mode, in vertical slot

File:7d14-screen.jpg  ‎  ‎      ‎ | 7D14 screen picture - 500 MHz signal (7A19, 7B92A, 7904)

File:7b85-risetime-10n.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-period-2.jpg ‎    ‎  ‎  | 7B85 used for pulse period measurement

File:7b85-period-1.jpg ‎  ‎  ‎    | 7B85 used for pulse period measurement

File:7s11-1ghz-smooth-store.jpg ‎ | 7S11/7T11, 1 GHz sine, smooth mode, on variable-persistence storage scope (7613)

File:7s11-1ghz-smooth.jpg ‎      | 7S11/7T11, 1 GHz sine, smooth mode

File:7s11-1ghz-norm.jpg ‎        | 7S11/7T11, 1 GHz sine, normal mode

File:7s11-s4-7t11a-1ghz.jpg ‎    | 7S11/S-4 and 7T11A displaying 1 GHz sine

File:7s12-7s11-1ghz-store2.jpg ‎  | 7S12 as a sampler displaying a 1 GHz signal (hi-res mode / storage)

File:7s12-7s11-1ghz-store.jpg ‎  | 7S12 as a sampler displaying a 1 GHz signal (hi-res mode / storage)

File:7s12-7s11-1ghz-nonstore.jpg ‎| 7S12 as a sampler displaying a 1 GHz signal (normal mode / non-storage)

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-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-10k w.jpg ‎              | sub-millivolt triangle signal displayed through 7A22, BW=10 kHz

File:Tri-100k w.jpg              ‎| sub-millivolt triangle signal displayed through 7A22, BW=100 kHz

File:Tri-1000k w.jpg ‎            | sub-millivolt triangle signal through 7A22, BW=1 MHz