Mechanical devices that printed elapsed time dials on cards for billing telephone calls.
Adjust volume while the alarm is ringing using the or ▼ buttons. Adjust volume while in standby mode using the same buttons. ⚙️ Technical Specifications cal-6b calculagraph manual
Beyond its technical content, the Cal-6B manual offers a window into mid-century industrial culture. Mechanical devices that printed elapsed time dials on
The final technical section is reserved for authorized service personnel, but it is still included in the owner’s manual—a testament to an era when factory electricians were expected to have basic mechanical skills. It describes how to adjust the “escapement pawl” and “governor spring” using a specialized tool (Cal-6B-TK, sold separately). Notably, the manual states: “Do not attempt to lubricate the main timing gear. It is impregnated with a lifetime lubricant. Adding oil will attract dust and ruin calibration.” This specific, almost stern, warning underscores the device’s precision engineering. Notably, the manual states: “Do not attempt to
The unit can be placed on a flat surface using its or mounted on a wall using the provided holders. Once positioned, plug the 1.5-meter power cord into a compatible outlet. 2. Setting a Timer To program a specific channel for a cooking task:
This is where most users get lost without a manual.