Waterman "Pocket-Scope" S-11-A

The S-11-A from Waterman was the bigger brother to the S-10-A and sports a 3-inch CRT. It was designed as a portable oscilloscope used out in the field as a tool for troubleshooting or monitoring equipment, radios, or televisions. It is more flexible to use compared to the smaller S-10-A and comes with a leather carrying handle.