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There are (at least) two versions of the PG506. The older version has two relays that switch a low-pass (noise) filter into the 10 V and below ranges. The new version just has a capacitor across the output for these ranges. | There are (at least) two versions of the PG506. The older version has two relays that switch a low-pass (noise) filter into the 10 V and below ranges. The new version just has a capacitor across the output for these ranges. | ||
Common failure modes: In case of low or no output on the 20 V and above ranges, check Q270, Q280 and Q290. | Common failure modes: In case of low or no output on the 20 V and above ranges, check Q270, Q280 and Q290. | ||
==Links== | |||
* [https://www.youtube.com/watch?v=IschnXSgOqc Zenwizard Studios - PG506 Repair and Calibration] | |||
==Pictures== | ==Pictures== | ||
Revision as of 07:16, 14 November 2021
The Tektronix PG506 is a 1 MHz calibration generator plug-in for the TM500 system.
It functionally replaces the 067-0502-01 in the "standard amplitude" mode, and the 106 in the "fast rise" and "high amplitude" modes.
There are (at least) two versions of the PG506. The older version has two relays that switch a low-pass (noise) filter into the 10 V and below ranges. The new version just has a capacitor across the output for these ranges.
Common failure modes: In case of low or no output on the 20 V and above ranges, check Q270, Q280 and Q290.
Links
Pictures
PG506 older version
PG506 newer version
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PG506 Left Internal
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PG506 Left Internal
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PG506 Right Internal
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PG506 Right Internal
PG506A
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PG506A Front
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Newer version without filter relays
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PG506A
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PG506A output waveform
