Below: 2712 data (called a "curve" in the Tek manuals)
read out over the GPIB bus uning custom Linux software
displayed on my 4016 storage tube terminal.
This software is available at ftp.omen.com.
6 hours scan of 30 to 50 MHz (23MB file) (highly compressed)
Scan of 118 to 138 MHz (20MB file)
The above files were generated by td, tek2gif, and ffmpeg.
This plot is formatted in the 2712 and output in the HPGL language.
The plot below was created by td and tek2gif.