PG501
The Tektronix PG501 is a 50 MHz pulse generator plug-in for the TM500 system.
Key Specifications
Outputs | simultaneous positive and negative output pulses, fixed 5 ns rise/fall times, independently variable amplitudes from 0.5 V to 5 V into 50 Ω |
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Pulse period | 20 ns to 20 ms calibrated, 1:10 variable to 200 ms, or externally triggered |
Pulse duration | 10 ns to 10 ms calibrated, 1:10 variable to 100 ms, external duration, or "locked on" to adjust output voltage |
Trigger input | ≥+1 V High, ≤0.1 V low; max. +5 V DC+peak AC; min. 10 ns on/off; triggers duration generator in Ext Trig mode, controls output in Ext Duration mode |
Pre-trigger output | 8 ns before main output, 1 V into 50 Ω |
Links
Documents Referencing PG501
Rear Interface
- 27B, 28A (GND 27A, 28B) – pre-trigger output, 10 ns before main output, 1 V from 27 Ω source impedance
- 25A (GND 26A) – averaged amplitude output, internally connected to +out or -out via 27 kΩ/20 nF, or disconnected
- 24B (GND 25B) – available to connect in parallel to front panel Trig/Duration Input (connecting cable to be user-installed)
Internals
The PG501 uses discrete transistors except for a single MC10105L ECL integrated circuit.
Prices
Year | 1980 | 1984 |
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Catalog Price | $525 | $735 |
In 2023 Dollars | $2,000 | $2,200 |
Pictures
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early PG501
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later PG501
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Internal
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Top side PCB of an early PG501 SN: B081739
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Bottom side PCB of an early PG501 SN: B081739
Measurements
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Risetime waveform of PG501 (This specimen achieves 2.1 ns)
Components
Some Parts Used in the PG501
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