User:Peter

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Scopes

  • 213

    213

  • 310A

    310A

  • 465 − from the estate of a hobbyist

    465 − from the estate of a hobbyist

  • 502 − spent many years in a university lab attached to strain gages watching metal samples being broken, at the end reduced to be a DSO pre-amp

    502 − spent many years in a university lab attached to strain gages watching metal samples being broken, at the end reduced to be a DSO pre-amp

  • 511AD − from a physics institute in Slovenia

    511AD − from a physics institute in Slovenia

  • 545A − from a guy with a remarkable collection of early radios and phonographs

    545A − from a guy with a remarkable collection of early radios and phonographs

  • 549 − looted for tubes by some Bavarian vulture, restored & nursed back to health by Matt, additional minor repairs in my shop

    549 − looted for tubes by some Bavarian vulture, restored & nursed back to health by Matt, additional minor repairs in my shop

  • 585 − another university retiree

    585 − another university retiree

  • 2230 − this one had been working on the railroad ...

    2230 − this one had been working on the railroad ...

  • 7503 − worked in a plasma physics lab, then moved to the physics dept at a smaller university

    7503 − worked in a plasma physics lab, then moved to the physics dept at a smaller university

  • 7603 (2) − one cured of GHz oscillations but infested with cabling gremlins, the other barely survived rough handling

    7603 (2) − one cured of GHz oscillations but infested with cabling gremlins, the other barely survived rough handling

  • 7613 − my first 7k Tek

    7613 − my first 7k Tek

  • 7623A

    7623A

  • 7633 − supposedly from a private museum

    7633 − supposedly from a private museum

  • 7844 − my #1 go-to scope

    7844 − my #1 go-to scope

  • 7854 − in great shape

    7854 − in great shape

  • 7904 (2) - worked for some time, PSU to be repaired

    7904 (2) - worked for some time, PSU to be repaired

  • 7104 − tube worn but in decent shape overall

    7104 − tube worn but in decent shape overall

  • SC504

    SC504

Other Instruments

  • 308 − nobody else would pick it up at that hamfest

    308 − nobody else would pick it up at that hamfest

  • Sony/Tek-branded AFG320

    Sony/Tek-branded AFG320

Carts, Cameras etc.

Plugins

500

7000

S

TM500

Probes

Other

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 ...

  • 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)

    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)

  • 7104 rise time measurement as before, 1000 Hz repetition rate at same brightness settings.

    7104 rise time measurement as before, 1000 Hz repetition rate at same brightness settings.

  • 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.

    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.

  • 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.

    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.

  • BC337 on 7CT1N

    BC337 on 7CT1N

  • P6202 rise time measured with 7S12, S-4, S-52

    P6202 rise time measured with 7S12, S-4, S-52

  • P6202 rise time measured with 7S12, S-4, S-52

    P6202 rise time measured with 7S12, S-4, S-52

  • 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 (7904 mainframe)

    A 7B92A (B098xxx) triggering a 974 MHz sine applied via 067-0587-02 calibration fixture (7904 mainframe)

  • Classic readout board diagnostic display

    Classic readout board diagnostic display

  • 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.

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

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

  • 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

  • P6022 / passive term. @ 10 mA/Div (top) vs. P6021+134 (bottom), sawtooth @ 100 mAp-p, 100 Hz

    P6022 / passive term. @ 10 mA/Div (top) vs. P6021+134 (bottom), sawtooth @ 100 mAp-p, 100 Hz

  • P6022 / passive term. @ 10 mA/Div (top) vs. P6021+134 (bottom), sawtooth @ 100 mAp-p, 1 kHz

    P6022 / passive term. @ 10 mA/Div (top) vs. P6021+134 (bottom), sawtooth @ 100 mAp-p, 1 kHz

  • P6022 / passive term. @ 10 mA/Div (top) vs. P6021+134 (bottom), sawtooth @ 100 mAp-p, 10 kHz

    P6022 / passive term. @ 10 mA/Div (top) vs. P6021+134 (bottom), sawtooth @ 100 mAp-p, 10 kHz

  • Measuring diode reverse recovery

    Measuring diode reverse recovery

  • Diode reverse recovery, 20 mA/Div

    Diode reverse recovery, 20 mA/Div

  • Tunnel diode quick check example using the method from Service Scope 49. Right beam is zoomed with delayed timebase to show step speed.

    Tunnel diode quick check example using the method from Service Scope 49. Right beam is zoomed with delayed timebase to show step speed.

  • 7A29 rise time (7104, 7B10, pulse from S-52)

    7A29 rise time (7104, 7B10, pulse from S-52)

  • 308 display, timing mode (binary counter example)

    308 display, timing mode (binary counter example)

  • 308 display, state mode (binary counter example)

    308 display, state mode (binary counter example)

Lists

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