TG501: Difference between revisions

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* [[Media:TG501 schematics.pdf|Tektronix TG501 Schematics (stitched, PDF)]]
* [[Media:TG501 schematics.pdf|Tektronix TG501 Schematics (stitched, PDF)]]
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There is also a TG501A.


Note the [http://www.eevblog.com/forum/repair/tektronix-tg501-out-put-problem/ output must be terminated into 50 Ω] or there may be no signal at all.
Note the [http://www.eevblog.com/forum/repair/tektronix-tg501-out-put-problem/ output must be terminated into 50 Ω] or there may be no signal at all.
There is also a TG501A.


==Specifications==
==Specifications==
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* Dimensions: 66.8 mm × 285.3 mm × 125.9 mm (w/d/h)
* Dimensions: 66.8 mm × 285.3 mm × 125.9 mm (w/d/h)


==Repair Issues==
==Links==
* Check for +15 V and adjust if not between 14.3 V and 15.7 V
* [https://www.youtube.com/watch?v=U5LQpqwqNIU Tek TG501A Time Mark Gen Restoration] by NFM @ YouTube
* If +5 V is outside 4.94 V − 5.46 V, check U626 (LM741) − old opamps are prone to failure.
* See the [[TG501/Repairs]] page for repair information.
* A lot of ICs are placed in non gold plated IC sockets. Contact problems can occur. Removing and inserting ICs helps.
* A1 board should be mounted to frame only with washers inbetween, especially near the rear connector. Shorts to conductor tracks can occur otherwise.


==Pictures==
==Pictures==
<gallery>
<gallery>
Tek tg501 on.JPG|TG501 Early Version
Tek tg501 on.JPG|TG501 early version
Tg 501 late.jpg|TG501 Late Version
Tg 501 late.jpg|TG501 late version
Tek tg501a.jpg|TG501A
Tek tg501a.jpg|TG501A
Tek tg501 waveform.jpg
Tek tg501 waveform.jpg |TG501 output waveform
Tek tg501 internal1.jpg|TG501
Tek tg501 internal1.jpg|TG501
Tek tg501 internal2.jpg|TG501
Tek tg501 internal2.jpg|TG501

Revision as of 04:17, 7 September 2021

Tektronix TG501
time mark generator
Tektronix TG501

Produced from 1974 to 1995

Manuals
(All manuals in PDF format unless noted otherwise)
Manuals – Specifications – Links – Pictures

The Tektronix TG501 is a time mark generator plug-in for the TM500 system.

There is also a TG501A.

Note the output must be terminated into 50 Ω or there may be no signal at all.

Specifications

  • Markers: 5 s to 1 ns in a 1,2,5 sequence
  • Marker Amplitude (into 50 Ω): ≥1 V peak on 5 s through 10 ns; ≥750 mVp-p on 5 ns and 2 ns; ≥200 mVp-p on 1 ns (separate output)
  • Trigger Output Signal: Slaved to marker output from 5 s through 100 ns. Remains at 100 ns for all faster markers
Internal Reference Standard (1 MHz) Option 1 (5 MHz)
Stability 1E-5 5E-7
Long-Term Drift 1E-5 per month 1E-7 per month
Setability 1E-7 5E-9
  • External Reference Input: 1 MHz; 5 MHz; 10 MHz; TTL compatible (internally hard wired so output frequencies counted down to 1 MHz)
  • Error Readout Range: to ±7.5%
  • Error Readout accuracy: One digit (±0.1%-points)
  • Net Weight: 1 kg
  • Dimensions: 66.8 mm × 285.3 mm × 125.9 mm (w/d/h)

Links

Pictures