We have many engineers in our readership, and they will undoubtedly be interested in the answer to this question, namely, “are engineers people?”

The question is posed in an ad by Sylvania tubes from the January 1930 issue of Radio Broadcast magazine.

Unfortunately, they ad doesn’t give a straightforward answer to the question. We agree, however, that one ought to be a suspecting person, a doubter. The company provided a coupon to write for more information, but you first had to affirm that yours was an open mind.