Wireless of the Week - week 45

[David Dunlop]

Oh boy! Just before Christmas and now I have two more manuals to look for to compliment the equipment I have on hand.

A number of the 19-Set items have shown up out here over the years. All but one worked when found. Two others quit within a year or so never to be resurrected. They both developed a progressively louder hum before passing on. Three others are still alive and well, but see minimal use. Without detailed schematics or design info, the root cause of the failures is tricky to pin down but the 'failure' seems to result in the main transformer unit becoming electrically inert permanently. A recurring suspicion is they were very finely designed for the 110V AC world with minor cycle fluctuations. In the postwar upgrade to 120V, they were not happy and slowly packed it in. Who knows.

My CPP-2 is my main wireless set supply, covering 2 19-sets, C-42 and vehicular PRC 77 setup. I will post more on that later. It is Serial No. 1319, also dated 1952.

Thanks again for the heads up on these manuals, Bruce. If you ever run across any spares, keep me in mind.

David