Resurrecting a classic “analog computer” from the 1960s …
The Tektronix Circuit Computer has been designed to compute … problems involving resistance, inductance, capacitance, frequency, and time.Instruction Manual, 1961
Rarely available as a “collectable” on your favorite auction site: timing is everything if you want one!
Updated for the modern age, where “hertz” has replaced “cycles / sec” and we say “nanofarad” rather than “millipicofarad”. Laser-printed or CNC-plotted, laminated, then laser-cut, because that’s how we do things nowadays.
I think the red cursor looks better.
The original instructions printed on the bottom deck assumed you owned a slide rule and knew how to use it. These revised instructions describe how to solve those pesky resistance-capacitance-inductance-time equations, even if it’s been a while since you last touched a slipstick.
The QR code printed on the back brings you here: it is not original!
If you grew up with a Pickett “eye saver” slide rule, you may prefer a yellow background.
Nothing beats a pen plotter for genuine old-school appearance. The tick marks seem a little thicker and the lettering may have a few imperfections, but they just exude engineering prowess.
Available with either plain white or Pickett yellow decks.
Unlike the original Tektronix Circuit Computer, these are hand-made one-at-a-time items.
Let me know if you develop an overwhelming desire for an assembled and tested version.