Pulse Generator 114

The Tektronix Type 114  is a general-purpose generator designed for laboratory and production  test facilities. It utilizes solid-state circuitry throughout. Three switches are used for selecting pulse period, width and amplitude. Each switch has a variable control  for use over the selected range. A front-panel lamp indicates when the pulse width exceeds the maximum allowed by the period. The width selector switch features a square-wave position providing symmetrical square-wave output at all pulse periods.

• Rise and Fall time: 10 nsec or less
• Pulse Aberrations: 5% or less (at maximum amplitude)
• Polarity: Positive or negative
• Pulse Period: 5 switches position from 1 µsec to 10 msec, plus external trigger position; continuously variable from 1 µsec to 100 msec. Accuracy: +/-3% with variable control in calibrated position. Jitter: less than 0.05%
• Pulse width: 5 switched positions from 100 nsec to 1 msec, plus square wave mode; continuously variable from 100 nsec to 10 msec. Accuracy: +/-3% with variable control in calibrated position. Jitter: less than 0.05%. Front panel lamp indicates when pulse width exceeds pulse period. Square wave output: symmetrical square-wave output at all pulse period settings.
• Pulse Amplitude: 4 switched positions: -1 to -3 V, -3 to -10 V, +1 to +3 V, +3 to +10 V. Variable within each range. Maximum output into a 50-Ω load is 10 V, 16 V into 1000-Ω load.

Here you find 386 models, 374 with images and 92 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Tektronix; Portland, OR