Tektronix PG 508 is a 50 MHz pulse generator plug‑in module for the TM500 series, providing adjustable pulse amplitude, duration, delay, and independently variable rise and fall times for laboratory and test applications.

Specifications

• Model: Tektronix PG 508 Pulse Generator.
• Maximum frequency: 50 MHz pulse repetition capability.
• Output amplitude: Up to ±20 V into high‑impedance loads; 10 V into 50 Ω load (typical specified outputs).
• Output window: ±20 V window capability for high‑level outputs.
• Trigger inputs: External trigger input, manual trigger button, and internal period generator with gating capability.

Pulse timing and shape control

• Independent controls: Separate controls for period, pulse duration, leading edge transition time, and trailing edge transition time.
• Delay and double‑pulse capability: Trigger signal can be undelayed, delayed, or both to produce single or double pulses; delay is selectable and can be gated by the trigger input.
• Custom timing positions: Period, delay, duration, and transition time switches include a custom position where a user‑supplied internal capacitor determines timing ranges.

Performance and electrical characteristics

• Rise/fall time control: Variable transition times for leading and trailing edges to accommodate different logic and analog testing needs.
• Load driving: Specified performance into high impedance and 50 Ω loads; amplitude and impedance specifications are provided in the technical manual and datasheets.
• Trigger impedance: 1 MΩ trigger input is documented for compatibility with a range of trigger sources.

Mechanical and system compatibility

• Form factor: Plug‑in module designed for the TM500 series mainframe (requires TM500‑series power module except TM501).
• Installation: Module inserts into the host TM500 slot; mechanical and electrical mating conform to Tektronix TM500 module specifications.